text: /*******************************************************************
   * This file is part of the Emulex Linux Device Driver for         *
   * Fibre Channel Host Bus Adapters.                                *
   * Copyright (C) 2009-2016 Emulex.  All rights reserved.           *
   * EMULEX and SLI are trademarks of Emulex.                        *
   * www.emulex.com                                                  *
   *                                                                 *
   * 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_ACTIVE_MBOX_WAIT_CNT               100
  #define LPFC_XRI_EXCH_BUSY_WAIT_TMO		10000
  #define LPFC_XRI_EXCH_BUSY_WAIT_T1   		10
  #define LPFC_XRI_EXCH_BUSY_WAIT_T2              30000
  #define LPFC_RELEASE_NOTIFICATION_INTERVAL	32
  #define LPFC_RPI_LOW_WATER_MARK			10
  
  #define LPFC_UNREG_FCF                          1
  #define LPFC_SKIP_UNREG_FCF                     0
  
  /* Amount of time in seconds for waiting FCF rediscovery to complete */
  #define LPFC_FCF_REDISCOVER_WAIT_TMO		2000 /* msec */
  
  /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
  #define LPFC_NEMBED_MBOX_SGL_CNT		254
  
  /* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
  #define LPFC_FCP_IO_CHAN_DEF       4
  #define LPFC_FCP_IO_CHAN_MIN       1
  #define LPFC_FCP_IO_CHAN_MAX       16
  
  /* Number of channels used for Flash Optimized Fabric (FOF) operations */
  
  #define LPFC_FOF_IO_CHAN_NUM       1
  
  /*
   * Provide the default FCF Record attributes used by the driver
   * when nonFIP mode is configured and there is no other default
   * FCF Record attributes.
   */
  #define LPFC_FCOE_FCF_DEF_INDEX	0
  #define LPFC_FCOE_FCF_GET_FIRST	0xFFFF
  #define LPFC_FCOE_FCF_NEXT_NONE	0xFFFF
  
  #define LPFC_FCOE_NULL_VID	0xFFF
  #define LPFC_FCOE_IGNORE_VID	0xFFFF
  
  /* First 3 bytes of default FCF MAC is specified by FC_MAP */
  #define LPFC_FCOE_FCF_MAC3	0xFF
  #define LPFC_FCOE_FCF_MAC4	0xFF
  #define LPFC_FCOE_FCF_MAC5	0xFE
  #define LPFC_FCOE_FCF_MAP0	0x0E
  #define LPFC_FCOE_FCF_MAP1	0xFC
  #define LPFC_FCOE_FCF_MAP2	0x00
  #define LPFC_FCOE_MAX_RCV_SIZE	0x800
  #define LPFC_FCOE_FKA_ADV_PER	0
  #define LPFC_FCOE_FIP_PRIORITY	0x80
  
  #define sli4_sid_from_fc_hdr(fc_hdr)  \
  	((fc_hdr)->fh_s_id[0] << 16 | \
  	 (fc_hdr)->fh_s_id[1] <<  8 | \
  	 (fc_hdr)->fh_s_id[2])
  
  #define sli4_did_from_fc_hdr(fc_hdr)  \
  	((fc_hdr)->fh_d_id[0] << 16 | \
  	 (fc_hdr)->fh_d_id[1] <<  8 | \
  	 (fc_hdr)->fh_d_id[2])
  
  #define sli4_fctl_from_fc_hdr(fc_hdr)  \
  	((fc_hdr)->fh_f_ctl[0] << 16 | \
  	 (fc_hdr)->fh_f_ctl[1] <<  8 | \
  	 (fc_hdr)->fh_f_ctl[2])
  
  #define sli4_type_from_fc_hdr(fc_hdr)  \
  	((fc_hdr)->fh_type)
  
  #define LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT 12000
  
  #define INT_FW_UPGRADE	0
  #define RUN_FW_UPGRADE	1
  
  enum lpfc_sli4_queue_type {
  	LPFC_EQ,
  	LPFC_GCQ,
  	LPFC_MCQ,
  	LPFC_WCQ,
  	LPFC_RCQ,
  	LPFC_MQ,
  	LPFC_WQ,
  	LPFC_HRQ,
  	LPFC_DRQ
  };
  
  /* The queue sub-type defines the functional purpose of the queue */
  enum lpfc_sli4_queue_subtype {
  	LPFC_NONE,
  	LPFC_MBOX,
  	LPFC_FCP,
  	LPFC_ELS,
  	LPFC_USOL
  };
  
  union sli4_qe {
  	void *address;
  	struct lpfc_eqe *eqe;
  	struct lpfc_cqe *cqe;
  	struct lpfc_mcqe *mcqe;
  	struct lpfc_wcqe_complete *wcqe_complete;
  	struct lpfc_wcqe_release *wcqe_release;
  	struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
  	struct lpfc_rcqe_complete *rcqe_complete;
  	struct lpfc_mqe *mqe;
  	union  lpfc_wqe *wqe;
  	union  lpfc_wqe128 *wqe128;
  	struct lpfc_rqe *rqe;
  };
  
  struct lpfc_queue {
  	struct list_head list;
  	enum lpfc_sli4_queue_type type;
  	enum lpfc_sli4_queue_subtype subtype;
  	struct lpfc_hba *phba;
  	struct list_head child_list;
  	uint32_t entry_count;	/* Number of entries to support on the queue */
  	uint32_t entry_size;	/* Size of each queue entry. */
  	uint32_t entry_repost;	/* Count of entries before doorbell is rung */
  #define LPFC_QUEUE_MIN_REPOST	8
  	uint32_t queue_id;	/* Queue ID assigned by the hardware */
  	uint32_t assoc_qid;     /* Queue ID associated with, for CQ/WQ/MQ */
  	struct list_head page_list;
  	uint32_t page_count;	/* Number of pages allocated for this queue */
  	uint32_t host_index;	/* The host's index for putting or getting */
  	uint32_t hba_index;	/* The last known hba index for get or put */
  
  	struct lpfc_sli_ring *pring; /* ptr to io ring associated with q */
  
  	uint16_t db_format;
  #define LPFC_DB_RING_FORMAT	0x01
  #define LPFC_DB_LIST_FORMAT	0x02
  	void __iomem *db_regaddr;
  	/* For q stats */
  	uint32_t q_cnt_1;
  	uint32_t q_cnt_2;
  	uint32_t q_cnt_3;
  	uint64_t q_cnt_4;
  /* defines for EQ stats */
  #define	EQ_max_eqe		q_cnt_1
  #define	EQ_no_entry		q_cnt_2
  #define	EQ_badstate		q_cnt_3
  #define	EQ_processed		q_cnt_4
  
  /* defines for CQ stats */
  #define	CQ_mbox			q_cnt_1
  #define	CQ_max_cqe		q_cnt_1
  #define	CQ_release_wqe		q_cnt_2
  #define	CQ_xri_aborted		q_cnt_3
  #define	CQ_wq			q_cnt_4
  
  /* defines for WQ stats */
  #define	WQ_overflow		q_cnt_1
  #define	WQ_posted		q_cnt_4
  
  /* defines for RQ stats */
  #define	RQ_no_posted_buf	q_cnt_1
  #define	RQ_no_buf_found		q_cnt_2
  #define	RQ_buf_trunc		q_cnt_3
  #define	RQ_rcv_buf		q_cnt_4
  
  	union sli4_qe qe[1];	/* array to index entries (must be last) */
  };
  
  struct lpfc_sli4_link {
  	uint16_t speed;
  	uint8_t duplex;
  	uint8_t status;
  	uint8_t type;
  	uint8_t number;
  	uint8_t fault;
  	uint16_t logical_speed;
  	uint16_t topology;
  };
  
  struct lpfc_fcf_rec {
  	uint8_t  fabric_name[8];
  	uint8_t  switch_name[8];
  	uint8_t  mac_addr[6];
  	uint16_t fcf_indx;
  	uint32_t priority;
  	uint16_t vlan_id;
  	uint32_t addr_mode;
  	uint32_t flag;
  #define BOOT_ENABLE	0x01
  #define RECORD_VALID	0x02
  };
  
  struct lpfc_fcf_pri_rec {
  	uint16_t fcf_index;
  #define LPFC_FCF_ON_PRI_LIST 0x0001
  #define LPFC_FCF_FLOGI_FAILED 0x0002
  	uint16_t flag;
  	uint32_t priority;
  };
  
  struct lpfc_fcf_pri {
  	struct list_head list;
  	struct lpfc_fcf_pri_rec fcf_rec;
  };
  
  /*
   * Maximum FCF table index, it is for driver internal book keeping, it
   * just needs to be no less than the supported HBA's FCF table size.
   */
  #define LPFC_SLI4_FCF_TBL_INDX_MAX	32
  
  struct lpfc_fcf {
  	uint16_t fcfi;
  	uint32_t fcf_flag;
  #define FCF_AVAILABLE	0x01 /* FCF available for discovery */
  #define FCF_REGISTERED	0x02 /* FCF registered with FW */
  #define FCF_SCAN_DONE	0x04 /* FCF table scan done */
  #define FCF_IN_USE	0x08 /* Atleast one discovery completed */
  #define FCF_INIT_DISC	0x10 /* Initial FCF discovery */
  #define FCF_DEAD_DISC	0x20 /* FCF DEAD fast FCF failover discovery */
  #define FCF_ACVL_DISC	0x40 /* All CVL fast FCF failover discovery */
  #define FCF_DISCOVERY	(FCF_INIT_DISC | FCF_DEAD_DISC | FCF_ACVL_DISC)
  #define FCF_REDISC_PEND	0x80 /* FCF rediscovery pending */
  #define FCF_REDISC_EVT	0x100 /* FCF rediscovery event to worker thread */
  #define FCF_REDISC_FOV	0x200 /* Post FCF rediscovery fast failover */
  #define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
  	uint32_t addr_mode;
  	uint32_t eligible_fcf_cnt;
  	struct lpfc_fcf_rec current_rec;
  	struct lpfc_fcf_rec failover_rec;
  	struct list_head fcf_pri_list;
  	struct lpfc_fcf_pri fcf_pri[LPFC_SLI4_FCF_TBL_INDX_MAX];
  	uint32_t current_fcf_scan_pri;
  	struct timer_list redisc_wait;
  	unsigned long *fcf_rr_bmask; /* Eligible FCF indexes for RR failover */
  };
  
  
  #define LPFC_REGION23_SIGNATURE "RG23"
  #define LPFC_REGION23_VERSION	1
  #define LPFC_REGION23_LAST_REC  0xff
  #define DRIVER_SPECIFIC_TYPE	0xA2
  #define LINUX_DRIVER_ID		0x20
  #define PORT_STE_TYPE		0x1
  
  struct lpfc_fip_param_hdr {
  	uint8_t type;
  #define FCOE_PARAM_TYPE		0xA0
  	uint8_t length;
  #define FCOE_PARAM_LENGTH	2
  	uint8_t parm_version;
  #define FIPP_VERSION		0x01
  	uint8_t parm_flags;
  #define	lpfc_fip_param_hdr_fipp_mode_SHIFT	6
  #define	lpfc_fip_param_hdr_fipp_mode_MASK	0x3
  #define lpfc_fip_param_hdr_fipp_mode_WORD	parm_flags
  #define	FIPP_MODE_ON				0x1
  #define	FIPP_MODE_OFF				0x0
  #define FIPP_VLAN_VALID				0x1
  };
  
  struct lpfc_fcoe_params {
  	uint8_t fc_map[3];
  	uint8_t reserved1;
  	uint16_t vlan_tag;
  	uint8_t reserved[2];
  };
  
  struct lpfc_fcf_conn_hdr {
  	uint8_t type;
  #define FCOE_CONN_TBL_TYPE		0xA1
  	uint8_t length;   /* words */
  	uint8_t reserved[2];
  };
  
  struct lpfc_fcf_conn_rec {
  	uint16_t flags;
  #define	FCFCNCT_VALID		0x0001
  #define	FCFCNCT_BOOT		0x0002
  #define	FCFCNCT_PRIMARY		0x0004   /* if not set, Secondary */
  #define	FCFCNCT_FBNM_VALID	0x0008
  #define	FCFCNCT_SWNM_VALID	0x0010
  #define	FCFCNCT_VLAN_VALID	0x0020
  #define	FCFCNCT_AM_VALID	0x0040
  #define	FCFCNCT_AM_PREFERRED	0x0080   /* if not set, AM Required */
  #define	FCFCNCT_AM_SPMA		0x0100	 /* if not set, FPMA */
  
  	uint16_t vlan_tag;
  	uint8_t fabric_name[8];
  	uint8_t switch_name[8];
  };
  
  struct lpfc_fcf_conn_entry {
  	struct list_head list;
  	struct lpfc_fcf_conn_rec conn_rec;
  };
  
  /*
   * Define the host's bootstrap mailbox.  This structure contains
   * the member attributes needed to create, use, and destroy the
   * bootstrap mailbox region.
   *
   * The macro definitions for the bmbx data structure are defined
   * in lpfc_hw4.h with the register definition.
   */
  struct lpfc_bmbx {
  	struct lpfc_dmabuf *dmabuf;
  	struct dma_address dma_address;
  	void *avirt;
  	dma_addr_t aphys;
  	uint32_t bmbx_size;
  };
  
  #define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
  
  #define LPFC_EQE_SIZE_4B 	4
  #define LPFC_EQE_SIZE_16B	16
  #define LPFC_CQE_SIZE		16
  #define LPFC_WQE_SIZE		64
  #define LPFC_WQE128_SIZE	128
  #define LPFC_MQE_SIZE		256
  #define LPFC_RQE_SIZE		8
  
  #define LPFC_EQE_DEF_COUNT	1024
  #define LPFC_CQE_DEF_COUNT      1024
  #define LPFC_WQE_DEF_COUNT      256
  #define LPFC_WQE128_DEF_COUNT   128
  #define LPFC_MQE_DEF_COUNT      16
  #define LPFC_RQE_DEF_COUNT	512
  
  #define LPFC_QUEUE_NOARM	false
  #define LPFC_QUEUE_REARM	true
  
  
  /*
   * SLI4 CT field defines
   */
  #define SLI4_CT_RPI 0
  #define SLI4_CT_VPI 1
  #define SLI4_CT_VFI 2
  #define SLI4_CT_FCFI 3
  
  /*
   * SLI4 specific data structures
   */
  struct lpfc_max_cfg_param {
  	uint16_t max_xri;
  	uint16_t xri_base;
  	uint16_t xri_used;
  	uint16_t max_rpi;
  	uint16_t rpi_base;
  	uint16_t rpi_used;
  	uint16_t max_vpi;
  	uint16_t vpi_base;
  	uint16_t vpi_used;
  	uint16_t max_vfi;
  	uint16_t vfi_base;
  	uint16_t vfi_used;
  	uint16_t max_fcfi;
  	uint16_t fcfi_used;
  	uint16_t max_eq;
  	uint16_t max_rq;
  	uint16_t max_cq;
  	uint16_t max_wq;
  };
  
  struct lpfc_hba;
  /* SLI4 HBA multi-fcp queue handler struct */
  struct lpfc_fcp_eq_hdl {
  	uint32_t idx;
  	struct lpfc_hba *phba;
  	atomic_t fcp_eq_in_use;
  };
  
  /* Port Capabilities for SLI4 Parameters */
  struct lpfc_pc_sli4_params {
  	uint32_t supported;
  	uint32_t if_type;
  	uint32_t sli_rev;
  	uint32_t sli_family;
  	uint32_t featurelevel_1;
  	uint32_t featurelevel_2;
  	uint32_t proto_types;
  #define LPFC_SLI4_PROTO_FCOE	0x0000001
  #define LPFC_SLI4_PROTO_FC	0x0000002
  #define LPFC_SLI4_PROTO_NIC	0x0000004
  #define LPFC_SLI4_PROTO_ISCSI	0x0000008
  #define LPFC_SLI4_PROTO_RDMA	0x0000010
  	uint32_t sge_supp_len;
  	uint32_t if_page_sz;
  	uint32_t rq_db_window;
  	uint32_t loopbk_scope;
  	uint32_t oas_supported;
  	uint32_t eq_pages_max;
  	uint32_t eqe_size;
  	uint32_t cq_pages_max;
  	uint32_t cqe_size;
  	uint32_t mq_pages_max;
  	uint32_t mqe_size;
  	uint32_t mq_elem_cnt;
  	uint32_t wq_pages_max;
  	uint32_t wqe_size;
  	uint32_t rq_pages_max;
  	uint32_t rqe_size;
  	uint32_t hdr_pages_max;
  	uint32_t hdr_size;
  	uint32_t hdr_pp_align;
  	uint32_t sgl_pages_max;
  	uint32_t sgl_pp_align;
  	uint8_t cqv;
  	uint8_t mqv;
  	uint8_t wqv;
  	uint8_t rqv;
  	uint8_t wqsize;
  #define LPFC_WQ_SZ64_SUPPORT	1
  #define LPFC_WQ_SZ128_SUPPORT	2
  };
  
  struct lpfc_iov {
  	uint32_t pf_number;
  	uint32_t vf_number;
  };
  
  struct lpfc_sli4_lnk_info {
  	uint8_t lnk_dv;
  #define LPFC_LNK_DAT_INVAL	0
  #define LPFC_LNK_DAT_VAL	1
  	uint8_t lnk_tp;
  #define LPFC_LNK_GE	0x0 /* FCoE */
  #define LPFC_LNK_FC	0x1 /* FC   */
  	uint8_t lnk_no;
  	uint8_t optic_state;
  };
  
  #define LPFC_SLI4_HANDLER_CNT		(LPFC_FCP_IO_CHAN_MAX+ \
  					 LPFC_FOF_IO_CHAN_NUM)
  #define LPFC_SLI4_HANDLER_NAME_SZ	16
  
  /* Used for IRQ vector to CPU mapping */
  struct lpfc_vector_map_info {
  	uint16_t	phys_id;
  	uint16_t	core_id;
  	uint16_t	irq;
  	uint16_t	channel_id;
  };
  #define LPFC_VECTOR_MAP_EMPTY	0xffff
  
  /* SLI4 HBA data structure entries */
  struct lpfc_sli4_hba {
  	void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
  					     PCI BAR0, config space registers */
  	void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
  					     PCI BAR1, control registers */
  	void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
  					     PCI BAR2, doorbell registers */
  	union {
  		struct {
  			/* IF Type 0, BAR 0 PCI cfg space reg mem map */
  			void __iomem *UERRLOregaddr;
  			void __iomem *UERRHIregaddr;
  			void __iomem *UEMASKLOregaddr;
  			void __iomem *UEMASKHIregaddr;
  		} if_type0;
  		struct {
  			/* IF Type 2, BAR 0 PCI cfg space reg mem map. */
  			void __iomem *STATUSregaddr;
  			void __iomem *CTRLregaddr;
  			void __iomem *ERR1regaddr;
  #define SLIPORT_ERR1_REG_ERR_CODE_1		0x1
  #define SLIPORT_ERR1_REG_ERR_CODE_2		0x2
  			void __iomem *ERR2regaddr;
  #define SLIPORT_ERR2_REG_FW_RESTART		0x0
  #define SLIPORT_ERR2_REG_FUNC_PROVISON		0x1
  #define SLIPORT_ERR2_REG_FORCED_DUMP		0x2
  #define SLIPORT_ERR2_REG_FAILURE_EQ		0x3
  #define SLIPORT_ERR2_REG_FAILURE_CQ		0x4
  #define SLIPORT_ERR2_REG_FAILURE_BUS		0x5
  #define SLIPORT_ERR2_REG_FAILURE_RQ		0x6
  		} if_type2;
  	} u;
  
  	/* IF type 0, BAR1 and if type 2, Bar 0 CSR register memory map */
  	void __iomem *PSMPHRregaddr;
  
  	/* Well-known SLI INTF register memory map. */
  	void __iomem *SLIINTFregaddr;
  
  	/* IF type 0, BAR 1 function CSR register memory map */
  	void __iomem *ISRregaddr;	/* HST_ISR register */
  	void __iomem *IMRregaddr;	/* HST_IMR register */
  	void __iomem *ISCRregaddr;	/* HST_ISCR register */
  	/* IF type 0, BAR 0 and if type 2, BAR 0 doorbell register memory map */
  	void __iomem *RQDBregaddr;	/* RQ_DOORBELL register */
  	void __iomem *WQDBregaddr;	/* WQ_DOORBELL register */
  	void __iomem *EQCQDBregaddr;	/* EQCQ_DOORBELL register */
  	void __iomem *MQDBregaddr;	/* MQ_DOORBELL register */
  	void __iomem *BMBXregaddr;	/* BootStrap MBX register */
  
  	uint32_t ue_mask_lo;
  	uint32_t ue_mask_hi;
  	uint32_t ue_to_sr;
  	uint32_t ue_to_rp;
  	struct lpfc_register sli_intf;
  	struct lpfc_pc_sli4_params pc_sli4_params;
  	struct msix_entry *msix_entries;
  	uint8_t handler_name[LPFC_SLI4_HANDLER_CNT][LPFC_SLI4_HANDLER_NAME_SZ];
  	struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
  
  	/* Pointers to the constructed SLI4 queues */
  	struct lpfc_queue **hba_eq;/* Event queues for HBA */
  	struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
  	struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
  	uint16_t *fcp_cq_map;
  
  	struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
  	struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
  	struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
  	struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
  	struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
  	struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
  
  	uint32_t fw_func_mode;	/* FW function protocol mode */
  	uint32_t ulp0_mode;	/* ULP0 protocol mode */
  	uint32_t ulp1_mode;	/* ULP1 protocol mode */
  
  	struct lpfc_queue *fof_eq; /* Flash Optimized Fabric Event queue */
  
  	/* Optimized Access Storage specific queues/structures */
  
  	struct lpfc_queue *oas_cq; /* OAS completion queue */
  	struct lpfc_queue *oas_wq; /* OAS Work queue */
  	struct lpfc_sli_ring *oas_ring;
  	uint64_t oas_next_lun;
  	uint8_t oas_next_tgt_wwpn[8];
  	uint8_t oas_next_vpt_wwpn[8];
  
  	/* Setup information for various queue parameters */
  	int eq_esize;
  	int eq_ecount;
  	int cq_esize;
  	int cq_ecount;
  	int wq_esize;
  	int wq_ecount;
  	int mq_esize;
  	int mq_ecount;
  	int rq_esize;
  	int rq_ecount;
  #define LPFC_SP_EQ_MAX_INTR_SEC         10000
  #define LPFC_FP_EQ_MAX_INTR_SEC         10000
  
  	uint32_t intr_enable;
  	struct lpfc_bmbx bmbx;
  	struct lpfc_max_cfg_param max_cfg_param;
  	uint16_t extents_in_use; /* must allocate resource extents. */
  	uint16_t rpi_hdrs_in_use; /* must post rpi hdrs if set. */
  	uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
  	uint16_t next_rpi;
  	uint16_t scsi_xri_max;
  	uint16_t scsi_xri_cnt;
  	uint16_t els_xri_cnt;
  	uint16_t scsi_xri_start;
  	struct list_head lpfc_free_sgl_list;
  	struct list_head lpfc_sgl_list;
  	struct list_head lpfc_abts_els_sgl_list;
  	struct list_head lpfc_abts_scsi_buf_list;
  	struct lpfc_sglq **lpfc_sglq_active_list;
  	struct list_head lpfc_rpi_hdr_list;
  	unsigned long *rpi_bmask;
  	uint16_t *rpi_ids;
  	uint16_t rpi_count;
  	struct list_head lpfc_rpi_blk_list;
  	unsigned long *xri_bmask;
  	uint16_t *xri_ids;
  	struct list_head lpfc_xri_blk_list;
  	unsigned long *vfi_bmask;
  	uint16_t *vfi_ids;
  	uint16_t vfi_count;
  	struct list_head lpfc_vfi_blk_list;
  	struct lpfc_sli4_flags sli4_flags;
  	struct list_head sp_queue_event;
  	struct list_head sp_cqe_event_pool;
  	struct list_head sp_asynce_work_queue;
  	struct list_head sp_fcp_xri_aborted_work_queue;
  	struct list_head sp_els_xri_aborted_work_queue;
  	struct list_head sp_unsol_work_queue;
  	struct lpfc_sli4_link link_state;
  	struct lpfc_sli4_lnk_info lnk_info;
  	uint32_t pport_name_sta;
  #define LPFC_SLI4_PPNAME_NON	0
  #define LPFC_SLI4_PPNAME_GET	1
  	struct lpfc_iov iov;
  	spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
  	spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
  	uint32_t physical_port;
  
  	/* CPU to vector mapping information */
  	struct lpfc_vector_map_info *cpu_map;
  	uint16_t num_online_cpu;
  	uint16_t num_present_cpu;
  	uint16_t curr_disp_cpu;
  };
  
  enum lpfc_sge_type {
  	GEN_BUFF_TYPE,
  	SCSI_BUFF_TYPE
  };
  
  enum lpfc_sgl_state {
  	SGL_FREED,
  	SGL_ALLOCATED,
  	SGL_XRI_ABORTED
  };
  
  struct lpfc_sglq {
  	/* lpfc_sglqs are used in double linked lists */
  	struct list_head list;
  	struct list_head clist;
  	enum lpfc_sge_type buff_type; /* is this a scsi sgl */
  	enum lpfc_sgl_state state;
  	struct lpfc_nodelist *ndlp; /* ndlp associated with IO */
  	uint16_t iotag;         /* pre-assigned IO tag */
  	uint16_t sli4_lxritag;  /* logical pre-assigned xri. */
  	uint16_t sli4_xritag;   /* pre-assigned XRI, (OXID) tag. */
  	struct sli4_sge *sgl;	/* pre-assigned SGL */
  	void *virt;		/* virtual address. */
  	dma_addr_t phys;	/* physical address */
  };
  
  struct lpfc_rpi_hdr {
  	struct list_head list;
  	uint32_t len;
  	struct lpfc_dmabuf *dmabuf;
  	uint32_t page_count;
  	uint32_t start_rpi;
  };
  
  struct lpfc_rsrc_blks {
  	struct list_head list;
  	uint16_t rsrc_start;
  	uint16_t rsrc_size;
  	uint16_t rsrc_used;
  };
  
  struct lpfc_rdp_context {
  	struct lpfc_nodelist *ndlp;
  	uint16_t ox_id;
  	uint16_t rx_id;
  	READ_LNK_VAR link_stat;
  	uint8_t page_a0[DMP_SFF_PAGE_A0_SIZE];
  	uint8_t page_a2[DMP_SFF_PAGE_A2_SIZE];
  	void (*cmpl)(struct lpfc_hba *, struct lpfc_rdp_context*, int);
  };
  
  struct lpfc_lcb_context {
  	uint8_t  sub_command;
  	uint8_t  type;
  	uint8_t  frequency;
  	uint16_t ox_id;
  	uint16_t rx_id;
  	struct lpfc_nodelist *ndlp;
  };
  
  
  /*
   * SLI4 specific function prototypes
   */
  int lpfc_pci_function_reset(struct lpfc_hba *);
  int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *);
  int lpfc_sli4_hba_setup(struct lpfc_hba *);
  int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
  		     uint8_t, uint32_t, bool);
  void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
  void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
  void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
  			   struct lpfc_mbx_sge *);
  int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
  			       uint16_t);
  
  void lpfc_sli4_hba_reset(struct lpfc_hba *);
  struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
  			uint32_t);
  void lpfc_sli4_queue_free(struct lpfc_queue *);
  int lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
  int lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint32_t);
  int lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
  			struct lpfc_queue *, uint32_t, uint32_t);
  int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
  		       struct lpfc_queue *, uint32_t);
  int lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
  			struct lpfc_queue *, uint32_t);
  int lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
  			struct lpfc_queue *, struct lpfc_queue *, uint32_t);
  void lpfc_rq_adjust_repost(struct lpfc_hba *, struct lpfc_queue *, int);
  int lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
  int lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
  int lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
  int lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
  int lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
  			 struct lpfc_queue *);
  int lpfc_sli4_queue_setup(struct lpfc_hba *);
  void lpfc_sli4_queue_unset(struct lpfc_hba *);
  int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
  int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
  uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
  void lpfc_sli4_free_xri(struct lpfc_hba *, int);
  int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
  int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
  struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
  struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
  void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
  void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
  int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
  int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
  int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
  struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
  void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
  int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
  void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
  void lpfc_sli4_remove_rpis(struct lpfc_hba *);
  void lpfc_sli4_async_event_proc(struct lpfc_hba *);
  void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
  int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
  			void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
  void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
  void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
  void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
  			       struct sli4_wcqe_xri_aborted *);
  void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
  			       struct sli4_wcqe_xri_aborted *);
  void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
  void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
  int lpfc_sli4_brdreset(struct lpfc_hba *);
  int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
  void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
  int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
  int lpfc_sli4_init_vpi(struct lpfc_vport *);
  uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
  uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
  void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
  int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
  int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
  int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
  void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
  void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
  void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
  int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
  int lpfc_sli4_post_status_check(struct lpfc_hba *);
  uint8_t lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
  uint8_t lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
  