[linux-2.6-block.git] / drivers / scsi / lpfc / lpfc_sli4.h

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2009 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_RELEASE_NOTIFICATION_INTERVAL	32
#define LPFC_GET_QE_REL_INT			32
#define LPFC_RPI_LOW_WATER_MARK			10
/* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
#define LPFC_NEMBED_MBOX_SGL_CNT		254

/* Multi-queue arrangement for fast-path FCP work queues */
#define LPFC_FN_EQN_MAX       8
#define LPFC_SP_EQN_DEF       1
#define LPFC_FP_EQN_DEF       1
#define LPFC_FP_EQN_MIN       1
#define LPFC_FP_EQN_MAX       (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)

#define LPFC_FN_WQN_MAX       32
#define LPFC_SP_WQN_DEF       1
#define LPFC_FP_WQN_DEF       4
#define LPFC_FP_WQN_MIN       1
#define LPFC_FP_WQN_MAX       (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)

/*
 * 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

/* 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	0x5AC
#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_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])

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;
	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 queue_id;	/* Queue ID assigned by the hardware */
	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 */
	union sli4_qe qe[1];	/* array to index entries (must be last) */
};

struct lpfc_sli4_link {
	uint8_t speed;
	uint8_t duplex;
	uint8_t status;
	uint8_t physical;
	uint8_t fault;
};

struct lpfc_fcf {
	uint8_t	 fabric_name[8];
	uint8_t	 switch_name[8];
	uint8_t  mac_addr[6];
	uint16_t fcf_indx;
	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_DISCOVERED	0x04 /* FCF discovery started  */
#define FCF_BOOT_ENABLE 0x08 /* Boot bios use this FCF */
#define FCF_IN_USE	0x10 /* Atleast one discovery completed */
#define FCF_VALID_VLAN	0x20 /* Use the vlan id specified */
	uint32_t priority;
	uint32_t addr_mode;
	uint16_t vlan_id;
};

#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_MQE_SIZE		256
#define LPFC_RQE_SIZE		8

#define LPFC_EQE_DEF_COUNT	1024
#define LPFC_CQE_DEF_COUNT      256
#define LPFC_WQE_DEF_COUNT      256
#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

#define LPFC_SLI4_MAX_SEGMENT_SIZE 0x10000

/*
 * 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_base;
	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;
};

/* 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 */
	/* BAR0 PCI config space register memory map */
	void __iomem *UERRLOregaddr; /* Address to UERR_STATUS_LO register */
	void __iomem *UERRHIregaddr; /* Address to UERR_STATUS_HI register */
	void __iomem *ONLINE0regaddr; /* Address to components of internal UE */
	void __iomem *ONLINE1regaddr; /* Address to components of internal UE */
#define LPFC_ONLINE_NERR	0xFFFFFFFF
	void __iomem *SCRATCHPADregaddr; /* Address to scratchpad register */
	/* BAR1 FCoE function CSR register memory map */
	void __iomem *STAregaddr;    /* Address to HST_STATE register */
	void __iomem *ISRregaddr;    /* Address to HST_ISR register */
	void __iomem *IMRregaddr;    /* Address to HST_IMR register */
	void __iomem *ISCRregaddr;   /* Address to HST_ISCR register */
	/* BAR2 VF-0 doorbell register memory map */
	void __iomem *RQDBregaddr;   /* Address to RQ_DOORBELL register */
	void __iomem *WQDBregaddr;   /* Address to WQ_DOORBELL register */
	void __iomem *EQCQDBregaddr; /* Address to EQCQ_DOORBELL register */
	void __iomem *MQDBregaddr;   /* Address to MQ_DOORBELL register */
	void __iomem *BMBXregaddr;   /* Address to BootStrap MBX register */

	struct msix_entry *msix_entries;
	uint32_t cfg_eqn;
	struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
	/* Pointers to the constructed SLI4 queues */
	struct lpfc_queue **fp_eq; /* Fast-path event queue */
	struct lpfc_queue *sp_eq;  /* Slow-path event queue */
	struct lpfc_queue **fcp_wq;/* Fast-path FCP work 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 */
	struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
	struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
	struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */

	/* 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 next_xri; /* last_xri - max_cfg_param.xri_base = used */
	uint16_t next_rpi;
	uint16_t scsi_xri_max;
	uint16_t scsi_xri_cnt;
	struct list_head lpfc_free_sgl_list;
	struct list_head lpfc_sgl_list;
	struct lpfc_sglq **lpfc_els_sgl_array;
	struct list_head lpfc_abts_els_sgl_list;
	struct lpfc_scsi_buf **lpfc_scsi_psb_array;
	struct list_head lpfc_abts_scsi_buf_list;
	uint32_t total_sglq_bufs;
	struct lpfc_sglq **lpfc_sglq_active_list;
	struct list_head lpfc_rpi_hdr_list;
	unsigned long *rpi_bmask;
	uint16_t rpi_count;
	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;
	spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
	spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
};

enum lpfc_sge_type {
	GEN_BUFF_TYPE,
	SCSI_BUFF_TYPE
};

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 */
	uint16_t iotag;         /* pre-assigned IO tag */
	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;
};

/*
 * SLI4 specific function prototypes
 */
int lpfc_pci_function_reset(struct lpfc_hba *);
int lpfc_sli4_hba_setup(struct lpfc_hba *);
int lpfc_sli4_hba_down(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 *);

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 *);
uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint16_t);
uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
			struct lpfc_queue *, uint32_t, uint32_t);
uint32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
			struct lpfc_queue *, uint32_t);
uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
			struct lpfc_queue *, uint32_t);
uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
			struct lpfc_queue *, struct lpfc_queue *, uint32_t);
uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
uint32_t 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 *);
int lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *);
uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
int lpfc_sli4_post_sgl_list(struct lpfc_hba *phba);
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 *);
int lpfc_sli4_resume_rpi(struct lpfc_nodelist *);
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 *);
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_hba *, uint16_t);
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_read_fcf_record(struct lpfc_hba *, uint16_t);
void lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *, LPFC_MBOXQ_t *);
int lpfc_sli4_post_status_check(struct lpfc_hba *);
uint8_t lpfc_sli4_mbox_opcode_get(struct lpfc_hba *, struct lpfcMboxq *);
Commit	Line	Data
da0436e9 JS	1	/*******************************************************************
	2	* This file is part of the Emulex Linux Device Driver for *
	3	* Fibre Channel Host Bus Adapters. *
	4	* Copyright (C) 2009 Emulex. All rights reserved. *
	5	* EMULEX and SLI are trademarks of Emulex. *
	6	* www.emulex.com *
	7	* *
	8	* This program is free software; you can redistribute it and/or *
	9	* modify it under the terms of version 2 of the GNU General *
	10	* Public License as published by the Free Software Foundation. *
	11	* This program is distributed in the hope that it will be useful. *
	12	* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
	13	* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
	14	* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
	15	* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
	16	* TO BE LEGALLY INVALID. See the GNU General Public License for *
	17	* more details, a copy of which can be found in the file COPYING *
	18	* included with this package. *
	19	*******************************************************************/
	20
	21	#define LPFC_ACTIVE_MBOX_WAIT_CNT 100
	22	#define LPFC_RELEASE_NOTIFICATION_INTERVAL 32
	23	#define LPFC_GET_QE_REL_INT 32
	24	#define LPFC_RPI_LOW_WATER_MARK 10
	25	/* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
	26	#define LPFC_NEMBED_MBOX_SGL_CNT 254
	27
	28	/* Multi-queue arrangement for fast-path FCP work queues */
	29	#define LPFC_FN_EQN_MAX 8
	30	#define LPFC_SP_EQN_DEF 1
	31	#define LPFC_FP_EQN_DEF 1
	32	#define LPFC_FP_EQN_MIN 1
	33	#define LPFC_FP_EQN_MAX (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)
	34
	35	#define LPFC_FN_WQN_MAX 32
	36	#define LPFC_SP_WQN_DEF 1
	37	#define LPFC_FP_WQN_DEF 4
	38	#define LPFC_FP_WQN_MIN 1
	39	#define LPFC_FP_WQN_MAX (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)
	40
	41	/*
	42	* Provide the default FCF Record attributes used by the driver
	43	* when nonFIP mode is configured and there is no other default
	44	* FCF Record attributes.
	45	*/
	46	#define LPFC_FCOE_FCF_DEF_INDEX 0
	47	#define LPFC_FCOE_FCF_GET_FIRST 0xFFFF
	48	#define LPFC_FCOE_FCF_NEXT_NONE 0xFFFF
	49
	50	/* First 3 bytes of default FCF MAC is specified by FC_MAP */
	51	#define LPFC_FCOE_FCF_MAC3 0xFF
	52	#define LPFC_FCOE_FCF_MAC4 0xFF
	53	#define LPFC_FCOE_FCF_MAC5 0xFE
	54	#define LPFC_FCOE_FCF_MAP0 0x0E
	55	#define LPFC_FCOE_FCF_MAP1 0xFC
	56	#define LPFC_FCOE_FCF_MAP2 0x00
	57	#define LPFC_FCOE_MAX_RCV_SIZE 0x5AC
	58	#define LPFC_FCOE_FKA_ADV_PER 0
	59	#define LPFC_FCOE_FIP_PRIORITY 0x80
	60
6669f9bb JS	61	#define sli4_sid_from_fc_hdr(fc_hdr) \
	62	((fc_hdr)->fh_s_id[0] << 16 \| \
	63	(fc_hdr)->fh_s_id[1] << 8 \| \
	64	(fc_hdr)->fh_s_id[2])
	65
5ffc266e JS	66	#define sli4_fctl_from_fc_hdr(fc_hdr) \
	67	((fc_hdr)->fh_f_ctl[0] << 16 \| \
	68	(fc_hdr)->fh_f_ctl[1] << 8 \| \
	69	(fc_hdr)->fh_f_ctl[2])
	70
da0436e9 JS	71	enum lpfc_sli4_queue_type {
	72	LPFC_EQ,
	73	LPFC_GCQ,
	74	LPFC_MCQ,
	75	LPFC_WCQ,
	76	LPFC_RCQ,
	77	LPFC_MQ,
	78	LPFC_WQ,
	79	LPFC_HRQ,
	80	LPFC_DRQ
	81	};
	82
	83	/* The queue sub-type defines the functional purpose of the queue */
	84	enum lpfc_sli4_queue_subtype {
	85	LPFC_NONE,
	86	LPFC_MBOX,
	87	LPFC_FCP,
	88	LPFC_ELS,
	89	LPFC_USOL
	90	};
	91
	92	union sli4_qe {
	93	void *address;
	94	struct lpfc_eqe *eqe;
	95	struct lpfc_cqe *cqe;
	96	struct lpfc_mcqe *mcqe;
	97	struct lpfc_wcqe_complete *wcqe_complete;
	98	struct lpfc_wcqe_release *wcqe_release;
	99	struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
	100	struct lpfc_rcqe_complete *rcqe_complete;
	101	struct lpfc_mqe *mqe;
	102	union lpfc_wqe *wqe;
	103	struct lpfc_rqe *rqe;
	104	};
	105
	106	struct lpfc_queue {
	107	struct list_head list;
	108	enum lpfc_sli4_queue_type type;
	109	enum lpfc_sli4_queue_subtype subtype;
	110	struct lpfc_hba *phba;
	111	struct list_head child_list;
	112	uint32_t entry_count; /* Number of entries to support on the queue */
	113	uint32_t entry_size; /* Size of each queue entry. */
	114	uint32_t queue_id; /* Queue ID assigned by the hardware */
	115	struct list_head page_list;
	116	uint32_t page_count; /* Number of pages allocated for this queue */
	117
	118	uint32_t host_index; /* The host's index for putting or getting */
	119	uint32_t hba_index; /* The last known hba index for get or put */
	120	union sli4_qe qe[1]; /* array to index entries (must be last) */
	121	};
	122
da0436e9 JS	123	struct lpfc_sli4_link {
	124	uint8_t speed;
	125	uint8_t duplex;
	126	uint8_t status;
	127	uint8_t physical;
	128	uint8_t fault;
	129	};
	130
	131	struct lpfc_fcf {
	132	uint8_t fabric_name[8];
8fa38513	133	uint8_t switch_name[8];
da0436e9 JS	134	uint8_t mac_addr[6];
	135	uint16_t fcf_indx;
	136	uint16_t fcfi;
	137	uint32_t fcf_flag;
	138	#define FCF_AVAILABLE 0x01 /* FCF available for discovery */
	139	#define FCF_REGISTERED 0x02 /* FCF registered with FW */
	140	#define FCF_DISCOVERED 0x04 /* FCF discovery started */
	141	#define FCF_BOOT_ENABLE 0x08 /* Boot bios use this FCF */
	142	#define FCF_IN_USE 0x10 /* Atleast one discovery completed */
	143	#define FCF_VALID_VLAN 0x20 /* Use the vlan id specified */
	144	uint32_t priority;
	145	uint32_t addr_mode;
	146	uint16_t vlan_id;
	147	};
	148
	149	#define LPFC_REGION23_SIGNATURE "RG23"
	150	#define LPFC_REGION23_VERSION 1
	151	#define LPFC_REGION23_LAST_REC 0xff
a0c87cbd JS	152	#define DRIVER_SPECIFIC_TYPE 0xA2
	153	#define LINUX_DRIVER_ID 0x20
	154	#define PORT_STE_TYPE 0x1
	155
da0436e9 JS	156	struct lpfc_fip_param_hdr {
	157	uint8_t type;
	158	#define FCOE_PARAM_TYPE 0xA0
	159	uint8_t length;
	160	#define FCOE_PARAM_LENGTH 2
	161	uint8_t parm_version;
	162	#define FIPP_VERSION 0x01
	163	uint8_t parm_flags;
	164	#define lpfc_fip_param_hdr_fipp_mode_SHIFT 6
	165	#define lpfc_fip_param_hdr_fipp_mode_MASK 0x3
	166	#define lpfc_fip_param_hdr_fipp_mode_WORD parm_flags
6a9c52cf	167	#define FIPP_MODE_ON 0x1
da0436e9 JS	168	#define FIPP_MODE_OFF 0x0
	169	#define FIPP_VLAN_VALID 0x1
	170	};
	171
	172	struct lpfc_fcoe_params {
	173	uint8_t fc_map[3];
	174	uint8_t reserved1;
	175	uint16_t vlan_tag;
	176	uint8_t reserved[2];
	177	};
	178
	179	struct lpfc_fcf_conn_hdr {
	180	uint8_t type;
	181	#define FCOE_CONN_TBL_TYPE 0xA1
	182	uint8_t length; /* words */
	183	uint8_t reserved[2];
	184	};
	185
	186	struct lpfc_fcf_conn_rec {
	187	uint16_t flags;
	188	#define FCFCNCT_VALID 0x0001
	189	#define FCFCNCT_BOOT 0x0002
	190	#define FCFCNCT_PRIMARY 0x0004 /* if not set, Secondary */
	191	#define FCFCNCT_FBNM_VALID 0x0008
	192	#define FCFCNCT_SWNM_VALID 0x0010
	193	#define FCFCNCT_VLAN_VALID 0x0020
	194	#define FCFCNCT_AM_VALID 0x0040
	195	#define FCFCNCT_AM_PREFERRED 0x0080 /* if not set, AM Required */
	196	#define FCFCNCT_AM_SPMA 0x0100 /* if not set, FPMA */
	197
	198	uint16_t vlan_tag;
	199	uint8_t fabric_name[8];
	200	uint8_t switch_name[8];
	201	};
	202
	203	struct lpfc_fcf_conn_entry {
	204	struct list_head list;
	205	struct lpfc_fcf_conn_rec conn_rec;
	206	};
	207
	208	/*
	209	* Define the host's bootstrap mailbox. This structure contains
	210	* the member attributes needed to create, use, and destroy the
	211	* bootstrap mailbox region.
	212	*
	213	* The macro definitions for the bmbx data structure are defined
	214	* in lpfc_hw4.h with the register definition.
	215	*/
	216	struct lpfc_bmbx {
	217	struct lpfc_dmabuf *dmabuf;
	218	struct dma_address dma_address;
	219	void *avirt;
	220	dma_addr_t aphys;
	221	uint32_t bmbx_size;
	222	};
	223
	224	#define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
	225
	226	#define LPFC_EQE_SIZE_4B 4
	227	#define LPFC_EQE_SIZE_16B 16
	228	#define LPFC_CQE_SIZE 16
	229	#define LPFC_WQE_SIZE 64
	230	#define LPFC_MQE_SIZE 256
	231	#define LPFC_RQE_SIZE 8
232
233	#define LPFC_EQE_DEF_COUNT 1024
234	#define LPFC_CQE_DEF_COUNT 256
f1126688	235	#define LPFC_WQE_DEF_COUNT 256
da0436e9 JS	236	#define LPFC_MQE_DEF_COUNT 16
	237	#define LPFC_RQE_DEF_COUNT 512
	238
	239	#define LPFC_QUEUE_NOARM false
	240	#define LPFC_QUEUE_REARM true
	241
	242
	243	/*
	244	* SLI4 CT field defines
	245	*/
	246	#define SLI4_CT_RPI 0
	247	#define SLI4_CT_VPI 1
	248	#define SLI4_CT_VFI 2
	249	#define SLI4_CT_FCFI 3
	250
	251	#define LPFC_SLI4_MAX_SEGMENT_SIZE 0x10000
	252
	253	/*
	254	* SLI4 specific data structures
	255	*/
	256	struct lpfc_max_cfg_param {
	257	uint16_t max_xri;
	258	uint16_t xri_base;
	259	uint16_t xri_used;
	260	uint16_t max_rpi;
	261	uint16_t rpi_base;
	262	uint16_t rpi_used;
	263	uint16_t max_vpi;
	264	uint16_t vpi_base;
	265	uint16_t vpi_used;
	266	uint16_t max_vfi;
	267	uint16_t vfi_base;
	268	uint16_t vfi_used;
	269	uint16_t max_fcfi;
	270	uint16_t fcfi_base;
	271	uint16_t fcfi_used;
	272	uint16_t max_eq;
	273	uint16_t max_rq;
	274	uint16_t max_cq;
	275	uint16_t max_wq;
	276	};
	277
	278	struct lpfc_hba;
	279	/* SLI4 HBA multi-fcp queue handler struct */
	280	struct lpfc_fcp_eq_hdl {
	281	uint32_t idx;
	282	struct lpfc_hba *phba;
	283	};
	284
	285	/* SLI4 HBA data structure entries */
	286	struct lpfc_sli4_hba {
	287	void __iomem conf_regs_memmap_p; / Kernel memory mapped address for
	288	PCI BAR0, config space registers */
	289	void __iomem ctrl_regs_memmap_p; / Kernel memory mapped address for
	290	PCI BAR1, control registers */
	291	void __iomem drbl_regs_memmap_p; / Kernel memory mapped address for
	292	PCI BAR2, doorbell registers */
	293	/* BAR0 PCI config space register memory map */
	294	void __iomem UERRLOregaddr; / Address to UERR_STATUS_LO register */
	295	void __iomem UERRHIregaddr; / Address to UERR_STATUS_HI register */
	296	void __iomem ONLINE0regaddr; / Address to components of internal UE */
	297	void __iomem ONLINE1regaddr; / Address to components of internal UE */
	298	#define LPFC_ONLINE_NERR 0xFFFFFFFF
	299	void __iomem SCRATCHPADregaddr; / Address to scratchpad register */
300	/* BAR1 FCoE function CSR register memory map */
301	void __iomem STAregaddr; / Address to HST_STATE register */
302	void __iomem ISRregaddr; / Address to HST_ISR register */
303	void __iomem IMRregaddr; / Address to HST_IMR register */
304	void __iomem ISCRregaddr; / Address to HST_ISCR register */
305	/* BAR2 VF-0 doorbell register memory map */
306	void __iomem RQDBregaddr; / Address to RQ_DOORBELL register */
307	void __iomem WQDBregaddr; / Address to WQ_DOORBELL register */
308	void __iomem EQCQDBregaddr; / Address to EQCQ_DOORBELL register */
309	void __iomem MQDBregaddr; / Address to MQ_DOORBELL register */
310	void __iomem BMBXregaddr; / Address to BootStrap MBX register */
311
312	struct msix_entry *msix_entries;
313	uint32_t cfg_eqn;
314	struct lpfc_fcp_eq_hdl fcp_eq_hdl; / FCP per-WQ handle */
315	/* Pointers to the constructed SLI4 queues */
316	struct lpfc_queue *fp_eq; / Fast-path event queue */
317	struct lpfc_queue sp_eq; / Slow-path event queue */
318	struct lpfc_queue *fcp_wq;/ Fast-path FCP work queue */
319	struct lpfc_queue mbx_wq; / Slow-path MBOX work queue */
320	struct lpfc_queue els_wq; / Slow-path ELS work queue */
321	struct lpfc_queue hdr_rq; / Slow-path Header Receive queue */
322	struct lpfc_queue dat_rq; / Slow-path Data Receive queue */
323	struct lpfc_queue *fcp_cq;/ Fast-path FCP compl queue */
324	struct lpfc_queue mbx_cq; / Slow-path mailbox complete queue */
325	struct lpfc_queue els_cq; / Slow-path ELS response complete queue */
da0436e9 JS	326
	327	/* Setup information for various queue parameters */
	328	int eq_esize;
	329	int eq_ecount;
	330	int cq_esize;
	331	int cq_ecount;
	332	int wq_esize;
	333	int wq_ecount;
	334	int mq_esize;
	335	int mq_ecount;
	336	int rq_esize;
	337	int rq_ecount;
	338	#define LPFC_SP_EQ_MAX_INTR_SEC 10000
	339	#define LPFC_FP_EQ_MAX_INTR_SEC 10000
	340
	341	uint32_t intr_enable;
	342	struct lpfc_bmbx bmbx;
	343	struct lpfc_max_cfg_param max_cfg_param;
	344	uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
	345	uint16_t next_rpi;
	346	uint16_t scsi_xri_max;
	347	uint16_t scsi_xri_cnt;
	348	struct list_head lpfc_free_sgl_list;
	349	struct list_head lpfc_sgl_list;
	350	struct lpfc_sglq **lpfc_els_sgl_array;
	351	struct list_head lpfc_abts_els_sgl_list;
	352	struct lpfc_scsi_buf **lpfc_scsi_psb_array;
	353	struct list_head lpfc_abts_scsi_buf_list;
	354	uint32_t total_sglq_bufs;
	355	struct lpfc_sglq **lpfc_sglq_active_list;
	356	struct list_head lpfc_rpi_hdr_list;
	357	unsigned long *rpi_bmask;
	358	uint16_t rpi_count;
	359	struct lpfc_sli4_flags sli4_flags;
45ed1190	360	struct list_head sp_queue_event;
da0436e9 JS	361	struct list_head sp_cqe_event_pool;
	362	struct list_head sp_asynce_work_queue;
	363	struct list_head sp_fcp_xri_aborted_work_queue;
	364	struct list_head sp_els_xri_aborted_work_queue;
	365	struct list_head sp_unsol_work_queue;
	366	struct lpfc_sli4_link link_state;
	367	spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
	368	spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
	369	};
	370
	371	enum lpfc_sge_type {
	372	GEN_BUFF_TYPE,
	373	SCSI_BUFF_TYPE
	374	};
	375
	376	struct lpfc_sglq {
	377	/* lpfc_sglqs are used in double linked lists */
	378	struct list_head list;
	379	struct list_head clist;
	380	enum lpfc_sge_type buff_type; /* is this a scsi sgl */
	381	uint16_t iotag; /* pre-assigned IO tag */
	382	uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
	383	struct sli4_sge sgl; / pre-assigned SGL */
	384	void virt; / virtual address. */
	385	dma_addr_t phys; /* physical address */
	386	};
	387
	388	struct lpfc_rpi_hdr {
	389	struct list_head list;
	390	uint32_t len;
	391	struct lpfc_dmabuf *dmabuf;
	392	uint32_t page_count;
	393	uint32_t start_rpi;
	394	};
	395
	396	/*
	397	* SLI4 specific function prototypes
	398	*/
	399	int lpfc_pci_function_reset(struct lpfc_hba *);
	400	int lpfc_sli4_hba_setup(struct lpfc_hba *);
	401	int lpfc_sli4_hba_down(struct lpfc_hba *);
	402	int lpfc_sli4_config(struct lpfc_hba , struct lpfcMboxq , uint8_t,
	403	uint8_t, uint32_t, bool);
	404	void lpfc_sli4_mbox_cmd_free(struct lpfc_hba , struct lpfcMboxq );
	405	void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
	406	void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
	407	struct lpfc_mbx_sge *);
	408
	409	void lpfc_sli4_hba_reset(struct lpfc_hba *);
	410	struct lpfc_queue lpfc_sli4_queue_alloc(struct lpfc_hba , uint32_t,
	411	uint32_t);
	412	void lpfc_sli4_queue_free(struct lpfc_queue *);
	413	uint32_t lpfc_eq_create(struct lpfc_hba , struct lpfc_queue , uint16_t);
	414	uint32_t lpfc_cq_create(struct lpfc_hba , struct lpfc_queue ,
	415	struct lpfc_queue *, uint32_t, uint32_t);
	416	uint32_t lpfc_mq_create(struct lpfc_hba , struct lpfc_queue ,
	417	struct lpfc_queue *, uint32_t);
	418	uint32_t lpfc_wq_create(struct lpfc_hba , struct lpfc_queue ,
	419	struct lpfc_queue *, uint32_t);
	420	uint32_t lpfc_rq_create(struct lpfc_hba , struct lpfc_queue ,
	421	struct lpfc_queue , struct lpfc_queue , uint32_t);
	422	uint32_t lpfc_eq_destroy(struct lpfc_hba , struct lpfc_queue );
	423	uint32_t lpfc_cq_destroy(struct lpfc_hba , struct lpfc_queue );
	424	uint32_t lpfc_mq_destroy(struct lpfc_hba , struct lpfc_queue );
425	uint32_t lpfc_wq_destroy(struct lpfc_hba , struct lpfc_queue );
426	uint32_t lpfc_rq_destroy(struct lpfc_hba , struct lpfc_queue ,
427	struct lpfc_queue *);
428	int lpfc_sli4_queue_setup(struct lpfc_hba *);
429	void lpfc_sli4_queue_unset(struct lpfc_hba *);
430	int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
431	int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
432	int lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *);
433	uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
434	int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
435	int lpfc_sli4_post_sgl_list(struct lpfc_hba *phba);
436	int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba , struct list_head , int);
437	struct lpfc_cq_event __lpfc_sli4_cq_event_alloc(struct lpfc_hba );
438	struct lpfc_cq_event lpfc_sli4_cq_event_alloc(struct lpfc_hba );
439	void __lpfc_sli4_cq_event_release(struct lpfc_hba , struct lpfc_cq_event );
440	void lpfc_sli4_cq_event_release(struct lpfc_hba , struct lpfc_cq_event );
441	int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
442	int lpfc_sli4_post_rpi_hdr(struct lpfc_hba , struct lpfc_rpi_hdr );
443	int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
444	struct lpfc_rpi_hdr lpfc_sli4_create_rpi_hdr(struct lpfc_hba );
445	void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
446	int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
447	void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
448	void lpfc_sli4_remove_rpis(struct lpfc_hba *);
449	void lpfc_sli4_async_event_proc(struct lpfc_hba *);
450	int lpfc_sli4_resume_rpi(struct lpfc_nodelist *);
451	void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
452	void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
453	void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
454	struct sli4_wcqe_xri_aborted *);
455	void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
456	struct sli4_wcqe_xri_aborted *);
457	int lpfc_sli4_brdreset(struct lpfc_hba *);
458	int lpfc_sli4_add_fcf_record(struct lpfc_hba , struct fcf_record );
459	void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
460	int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
461	int lpfc_sli4_init_vpi(struct lpfc_hba *, uint16_t);
462	uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
463	uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
464	void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
465	int lpfc_sli4_read_fcf_record(struct lpfc_hba *, uint16_t);
466	void lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba , LPFC_MBOXQ_t );
467	int lpfc_sli4_post_status_check(struct lpfc_hba *);
468	uint8_t lpfc_sli4_mbox_opcode_get(struct lpfc_hba , struct lpfcMboxq );
469