[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_sli.h

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2007 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.                                     *
 *******************************************************************/

/* forward declaration for LPFC_IOCB_t's use */
struct lpfc_hba;
struct lpfc_vport;

/* Define the context types that SLI handles for abort and sums. */
typedef enum _lpfc_ctx_cmd {
	LPFC_CTX_LUN,
	LPFC_CTX_TGT,
	LPFC_CTX_HOST
} lpfc_ctx_cmd;

struct lpfc_cq_event {
	struct list_head list;
	union {
		struct lpfc_mcqe		mcqe_cmpl;
		struct lpfc_acqe_link		acqe_link;
		struct lpfc_acqe_fip		acqe_fip;
		struct lpfc_acqe_dcbx		acqe_dcbx;
		struct lpfc_acqe_grp5		acqe_grp5;
		struct lpfc_acqe_fc_la		acqe_fc;
		struct lpfc_acqe_sli		acqe_sli;
		struct lpfc_rcqe		rcqe_cmpl;
		struct sli4_wcqe_xri_aborted	wcqe_axri;
		struct lpfc_wcqe_complete	wcqe_cmpl;
	} cqe;
};

/* This structure is used to handle IOCB requests / responses */
struct lpfc_iocbq {
	/* lpfc_iocbqs are used in double linked lists */
	struct list_head list;
	struct list_head clist;
	struct list_head dlist;
	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 lpfc_cq_event cq_event;

	IOCB_t iocb;		/* IOCB cmd */
	uint8_t retry;		/* retry counter for IOCB cmd - if needed */
	uint16_t iocb_flag;
#define LPFC_IO_LIBDFC		1	/* libdfc iocb */
#define LPFC_IO_WAKE		2	/* High Priority Queue signal flag */
#define LPFC_IO_FCP		4	/* FCP command -- iocbq in scsi_buf */
#define LPFC_DRIVER_ABORTED	8	/* driver aborted this request */
#define LPFC_IO_FABRIC		0x10	/* Iocb send using fabric scheduler */
#define LPFC_DELAY_MEM_FREE	0x20    /* Defer free'ing of FC data */
#define LPFC_EXCHANGE_BUSY	0x40    /* SLI4 hba reported XB in response */
#define LPFC_USE_FCPWQIDX	0x80    /* Submit to specified FCPWQ index */
#define DSS_SECURITY_OP		0x100	/* security IO */
#define LPFC_IO_ON_TXCMPLQ	0x200	/* The IO is still on the TXCMPLQ */
#define LPFC_IO_DIF		0x400	/* T10 DIF IO */

#define LPFC_FIP_ELS_ID_MASK	0xc000	/* ELS_ID range 0-3, non-shifted mask */
#define LPFC_FIP_ELS_ID_SHIFT	14

	uint8_t rsvd2;
	uint32_t drvrTimeout;	/* driver timeout in seconds */
	uint32_t fcp_wqidx;	/* index to FCP work queue */
	struct lpfc_vport *vport;/* virtual port pointer */
	void *context1;		/* caller context information */
	void *context2;		/* caller context information */
	void *context3;		/* caller context information */
	union {
		wait_queue_head_t    *wait_queue;
		struct lpfc_iocbq    *rsp_iocb;
		struct lpfcMboxq     *mbox;
		struct lpfc_nodelist *ndlp;
		struct lpfc_node_rrq *rrq;
	} context_un;

	void (*fabric_iocb_cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
			   struct lpfc_iocbq *);
	void (*iocb_cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
			   struct lpfc_iocbq *);
};

#define SLI_IOCB_RET_IOCB      1	/* Return IOCB if cmd ring full */

#define IOCB_SUCCESS        0
#define IOCB_BUSY           1
#define IOCB_ERROR          2
#define IOCB_TIMEDOUT       3

#define LPFC_MBX_WAKE		1
#define LPFC_MBX_IMED_UNREG	2

typedef struct lpfcMboxq {
	/* MBOXQs are used in single linked lists */
	struct list_head list;	/* ptr to next mailbox command */
	union {
		MAILBOX_t mb;		/* Mailbox cmd */
		struct lpfc_mqe mqe;
	} u;
	struct lpfc_vport *vport;/* virtual port pointer */
	void *context1;		/* caller context information */
	void *context2;		/* caller context information */

	void (*mbox_cmpl) (struct lpfc_hba *, struct lpfcMboxq *);
	uint8_t mbox_flag;
	uint16_t in_ext_byte_len;
	uint16_t out_ext_byte_len;
	uint8_t  mbox_offset_word;
	struct lpfc_mcqe mcqe;
	struct lpfc_mbx_nembed_sge_virt *sge_array;
} LPFC_MBOXQ_t;

#define MBX_POLL        1	/* poll mailbox till command done, then
				   return */
#define MBX_NOWAIT      2	/* issue command then return immediately */

#define LPFC_MAX_RING_MASK  5	/* max num of rctl/type masks allowed per
				   ring */
#define LPFC_MAX_RING       4	/* max num of SLI rings used by driver */

struct lpfc_sli_ring;

struct lpfc_sli_ring_mask {
	uint8_t profile;	/* profile associated with ring */
	uint8_t rctl;	/* rctl / type pair configured for ring */
	uint8_t type;	/* rctl / type pair configured for ring */
	uint8_t rsvd;
	/* rcv'd unsol event */
	void (*lpfc_sli_rcv_unsol_event) (struct lpfc_hba *,
					 struct lpfc_sli_ring *,
					 struct lpfc_iocbq *);
};


/* Structure used to hold SLI statistical counters and info */
struct lpfc_sli_ring_stat {
	uint64_t iocb_event;	 /* IOCB event counters */
	uint64_t iocb_cmd;	 /* IOCB cmd issued */
	uint64_t iocb_rsp;	 /* IOCB rsp received */
	uint64_t iocb_cmd_delay; /* IOCB cmd ring delay */
	uint64_t iocb_cmd_full;	 /* IOCB cmd ring full */
	uint64_t iocb_cmd_empty; /* IOCB cmd ring is now empty */
	uint64_t iocb_rsp_full;	 /* IOCB rsp ring full */
};

/* Structure used to hold SLI ring information */
struct lpfc_sli_ring {
	uint16_t flag;		/* ring flags */
#define LPFC_DEFERRED_RING_EVENT 0x001	/* Deferred processing a ring event */
#define LPFC_CALL_RING_AVAILABLE 0x002	/* indicates cmd was full */
#define LPFC_STOP_IOCB_EVENT     0x020	/* Stop processing IOCB cmds event */
	uint16_t abtsiotag;	/* tracks next iotag to use for ABTS */

	uint32_t local_getidx;   /* last available cmd index (from cmdGetInx) */
	uint32_t next_cmdidx;    /* next_cmd index */
	uint32_t rspidx;	/* current index in response ring */
	uint32_t cmdidx;	/* current index in command ring */
	uint8_t rsvd;
	uint8_t ringno;		/* ring number */
	uint16_t numCiocb;	/* number of command iocb's per ring */
	uint16_t numRiocb;	/* number of rsp iocb's per ring */
	uint16_t sizeCiocb;	/* Size of command iocb's in this ring */
	uint16_t sizeRiocb;	/* Size of response iocb's in this ring */

	uint32_t fast_iotag;	/* max fastlookup based iotag           */
	uint32_t iotag_ctr;	/* keeps track of the next iotag to use */
	uint32_t iotag_max;	/* max iotag value to use               */
	struct list_head txq;
	uint16_t txq_cnt;	/* current length of queue */
	uint16_t txq_max;	/* max length */
	struct list_head txcmplq;
	uint16_t txcmplq_cnt;	/* current length of queue */
	uint16_t txcmplq_max;	/* max length */
	uint32_t *cmdringaddr;	/* virtual address for cmd rings */
	uint32_t *rspringaddr;	/* virtual address for rsp rings */
	uint32_t missbufcnt;	/* keep track of buffers to post */
	struct list_head postbufq;
	uint16_t postbufq_cnt;	/* current length of queue */
	uint16_t postbufq_max;	/* max length */
	struct list_head iocb_continueq;
	uint16_t iocb_continueq_cnt;	/* current length of queue */
	uint16_t iocb_continueq_max;	/* max length */
	struct list_head iocb_continue_saveq;

	struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK];
	uint32_t num_mask;	/* number of mask entries in prt array */
	void (*lpfc_sli_rcv_async_status) (struct lpfc_hba *,
		struct lpfc_sli_ring *, struct lpfc_iocbq *);

	struct lpfc_sli_ring_stat stats;	/* SLI statistical info */

	/* cmd ring available */
	void (*lpfc_sli_cmd_available) (struct lpfc_hba *,
					struct lpfc_sli_ring *);
};

/* Structure used for configuring rings to a specific profile or rctl / type */
struct lpfc_hbq_init {
	uint32_t rn;		/* Receive buffer notification */
	uint32_t entry_count;	/* max # of entries in HBQ */
	uint32_t headerLen;	/* 0 if not profile 4 or 5 */
	uint32_t logEntry;	/* Set to 1 if this HBQ used for LogEntry */
	uint32_t profile;	/* Selection profile 0=all, 7=logentry */
	uint32_t ring_mask;	/* Binds HBQ to a ring e.g. Ring0=b0001,
				 * ring2=b0100 */
	uint32_t hbq_index;	/* index of this hbq in ring .HBQs[] */

	uint32_t seqlenoff;
	uint32_t maxlen;
	uint32_t seqlenbcnt;
	uint32_t cmdcodeoff;
	uint32_t cmdmatch[8];
	uint32_t mask_count;	/* number of mask entries in prt array */
	struct hbq_mask hbqMasks[6];

	/* Non-config rings fields to keep track of buffer allocations */
	uint32_t buffer_count;	/* number of buffers allocated */
	uint32_t init_count;	/* number to allocate when initialized */
	uint32_t add_count;	/* number to allocate when starved */
} ;

/* Structure used to hold SLI statistical counters and info */
struct lpfc_sli_stat {
	uint64_t mbox_stat_err;  /* Mbox cmds completed status error */
	uint64_t mbox_cmd;       /* Mailbox commands issued */
	uint64_t sli_intr;       /* Count of Host Attention interrupts */
	uint32_t err_attn_event; /* Error Attn event counters */
	uint32_t link_event;     /* Link event counters */
	uint32_t mbox_event;     /* Mailbox event counters */
	uint32_t mbox_busy;	 /* Mailbox cmd busy */
};

/* Structure to store link status values when port stats are reset */
struct lpfc_lnk_stat {
	uint32_t link_failure_count;
	uint32_t loss_of_sync_count;
	uint32_t loss_of_signal_count;
	uint32_t prim_seq_protocol_err_count;
	uint32_t invalid_tx_word_count;
	uint32_t invalid_crc_count;
	uint32_t error_frames;
	uint32_t link_events;
};

/* Structure used to hold SLI information */
struct lpfc_sli {
	uint32_t num_rings;
	uint32_t sli_flag;

	/* Additional sli_flags */
#define LPFC_SLI_MBOX_ACTIVE      0x100	/* HBA mailbox is currently active */
#define LPFC_SLI_ACTIVE           0x200	/* SLI in firmware is active */
#define LPFC_PROCESS_LA           0x400	/* Able to process link attention */
#define LPFC_BLOCK_MGMT_IO        0x800	/* Don't allow mgmt mbx or iocb cmds */
#define LPFC_MENLO_MAINT          0x1000 /* need for menl fw download */
#define LPFC_SLI_ASYNC_MBX_BLK    0x2000 /* Async mailbox is blocked */

	struct lpfc_sli_ring ring[LPFC_MAX_RING];
	int fcp_ring;		/* ring used for FCP initiator commands */
	int next_ring;

	int extra_ring;		/* extra ring used for other protocols */

	struct lpfc_sli_stat slistat;	/* SLI statistical info */
	struct list_head mboxq;
	uint16_t mboxq_cnt;	/* current length of queue */
	uint16_t mboxq_max;	/* max length */
	LPFC_MBOXQ_t *mbox_active;	/* active mboxq information */
	struct list_head mboxq_cmpl;

	struct timer_list mbox_tmo;	/* Hold clk to timeout active mbox
					   cmd */

#define LPFC_IOCBQ_LOOKUP_INCREMENT  1024
	struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */
	size_t iocbq_lookup_len;           /* current lengs of the array */
	uint16_t  last_iotag;              /* last allocated IOTAG */
	unsigned long  stats_start;        /* in seconds */
	struct lpfc_lnk_stat lnk_stat_offsets;
};

/* Timeout for normal outstanding mbox command (Seconds) */
#define LPFC_MBOX_TMO				30
/* Timeout for non-flash-based outstanding sli_config mbox command (Seconds) */
#define LPFC_MBOX_SLI4_CONFIG_TMO		60
/* Timeout for flash-based outstanding sli_config mbox command (Seconds) */
#define LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO	300
/* Timeout for other flash-based outstanding mbox command (Seconds) */
#define LPFC_MBOX_TMO_FLASH_CMD			300
Commit	Line	Data
dea3101e	1	/*******************************************************************
dea3101e	2	* This file is part of the Emulex Linux Device Driver for *
c44ce173	3	* Fibre Channel Host Bus Adapters. *
9413afff	4	* Copyright (C) 2004-2007 Emulex. All rights reserved. *
c44ce173	5	* EMULEX and SLI are trademarks of Emulex. *
dea3101e	6	* www.emulex.com *
	7	* *
	8	* This program is free software; you can redistribute it and/or *
c44ce173 JSEC	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. *
dea3101e	19	*******************************************************************/
dea3101e	20
dea3101e	21	/* forward declaration for LPFC_IOCB_t's use */
dea3101e	22	struct lpfc_hba;
2e0fef85	23	struct lpfc_vport;
dea3101e	24
	25	/* Define the context types that SLI handles for abort and sums. */
	26	typedef enum _lpfc_ctx_cmd {
	27	LPFC_CTX_LUN,
	28	LPFC_CTX_TGT,
dea3101e	29	LPFC_CTX_HOST
	30	} lpfc_ctx_cmd;
	31
4d9ab994 JS	32	struct lpfc_cq_event {
	33	struct list_head list;
	34	union {
	35	struct lpfc_mcqe mcqe_cmpl;
	36	struct lpfc_acqe_link acqe_link;
70f3c073	37	struct lpfc_acqe_fip acqe_fip;
4d9ab994	38	struct lpfc_acqe_dcbx acqe_dcbx;
b19a061a	39	struct lpfc_acqe_grp5 acqe_grp5;
70f3c073 JS	40	struct lpfc_acqe_fc_la acqe_fc;
70f3c073 JS	41	struct lpfc_acqe_sli acqe_sli;
4d9ab994 JS	42	struct lpfc_rcqe rcqe_cmpl;
	43	struct sli4_wcqe_xri_aborted wcqe_axri;
	44	struct lpfc_wcqe_complete wcqe_cmpl;
	45	} cqe;
da0436e9 JS	46	};
da0436e9 JS	47
dea3101e	48	/* This structure is used to handle IOCB requests / responses */
	49	struct lpfc_iocbq {
	50	/* lpfc_iocbqs are used in double linked lists */
	51	struct list_head list;
9c2face6	52	struct list_head clist;
2a9bf3d0	53	struct list_head dlist;
604a3e30	54	uint16_t iotag; /* pre-assigned IO tag */
6d368e53	55	uint16_t sli4_lxritag; /* logical pre-assigned XRI. */
da0436e9	56	uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
45ed1190	57	struct lpfc_cq_event cq_event;
604a3e30	58
dea3101e	59	IOCB_t iocb; /* IOCB cmd */
dea3101e	60	uint8_t retry; /* retry counter for IOCB cmd - if needed */
341af102	61	uint16_t iocb_flag;
07951076 JS	62	#define LPFC_IO_LIBDFC 1 /* libdfc iocb */
	63	#define LPFC_IO_WAKE 2 /* High Priority Queue signal flag */
	64	#define LPFC_IO_FCP 4 /* FCP command -- iocbq in scsi_buf */
	65	#define LPFC_DRIVER_ABORTED 8 /* driver aborted this request */
92d7f7b0	66	#define LPFC_IO_FABRIC 0x10 /* Iocb send using fabric scheduler */
0ff10d46	67	#define LPFC_DELAY_MEM_FREE 0x20 /* Defer free'ing of FC data */
341af102 JS	68	#define LPFC_EXCHANGE_BUSY 0x40 /* SLI4 hba reported XB in response */
341af102 JS	69	#define LPFC_USE_FCPWQIDX 0x80 /* Submit to specified FCPWQ index */
0f65ff68	70	#define DSS_SECURITY_OP 0x100 /* security IO */
4f2e66c6	71	#define LPFC_IO_ON_TXCMPLQ 0x200 /* The IO is still on the TXCMPLQ */
acd6859b	72	#define LPFC_IO_DIF 0x400 /* T10 DIF IO */
341af102 JS	73
	74	#define LPFC_FIP_ELS_ID_MASK 0xc000 /* ELS_ID range 0-3, non-shifted mask */
	75	#define LPFC_FIP_ELS_ID_SHIFT 14
dea3101e	76
dea3101e	77	uint8_t rsvd2;
dea3101e	78	uint32_t drvrTimeout; /* driver timeout in seconds */
5ffc266e	79	uint32_t fcp_wqidx; /* index to FCP work queue */
2e0fef85	80	struct lpfc_vport vport;/ virtual port pointer */
dea3101e	81	void context1; / caller context information */
	82	void context2; / caller context information */
	83	void context3; / caller context information */
	84	union {
51ef4c26 JS	85	wait_queue_head_t *wait_queue;
	86	struct lpfc_iocbq *rsp_iocb;
	87	struct lpfcMboxq *mbox;
	88	struct lpfc_nodelist *ndlp;
19ca7609	89	struct lpfc_node_rrq *rrq;
dea3101e	90	} context_un;
dea3101e	91
92d7f7b0 JS	92	void (fabric_iocb_cmpl) (struct lpfc_hba , struct lpfc_iocbq *,
92d7f7b0 JS	93	struct lpfc_iocbq *);
dea3101e	94	void (iocb_cmpl) (struct lpfc_hba , struct lpfc_iocbq *,
dea3101e	95	struct lpfc_iocbq *);
dea3101e	96	};
	97
	98	#define SLI_IOCB_RET_IOCB 1 /* Return IOCB if cmd ring full */
dea3101e	99
	100	#define IOCB_SUCCESS 0
	101	#define IOCB_BUSY 1
	102	#define IOCB_ERROR 2
	103	#define IOCB_TIMEDOUT 3
	104
858c9f6c JS	105	#define LPFC_MBX_WAKE 1
858c9f6c JS	106	#define LPFC_MBX_IMED_UNREG 2
7054a606	107
dea3101e	108	typedef struct lpfcMboxq {
	109	/* MBOXQs are used in single linked lists */
	110	struct list_head list; /* ptr to next mailbox command */
da0436e9 JS	111	union {
	112	MAILBOX_t mb; /* Mailbox cmd */
	113	struct lpfc_mqe mqe;
	114	} u;
	115	struct lpfc_vport vport;/ virtual port pointer */
dea3101e	116	void context1; / caller context information */
	117	void context2; / caller context information */
	118
	119	void (mbox_cmpl) (struct lpfc_hba , struct lpfcMboxq *);
7054a606	120	uint8_t mbox_flag;
7a470277 JS	121	uint16_t in_ext_byte_len;
	122	uint16_t out_ext_byte_len;
	123	uint8_t mbox_offset_word;
da0436e9 JS	124	struct lpfc_mcqe mcqe;
da0436e9 JS	125	struct lpfc_mbx_nembed_sge_virt *sge_array;
dea3101e	126	} LPFC_MBOXQ_t;
	127
	128	#define MBX_POLL 1 /* poll mailbox till command done, then
	129	return */
	130	#define MBX_NOWAIT 2 /* issue command then return immediately */
dea3101e	131
6669f9bb	132	#define LPFC_MAX_RING_MASK 5 /* max num of rctl/type masks allowed per
dea3101e	133	ring */
	134	#define LPFC_MAX_RING 4 /* max num of SLI rings used by driver */
	135
	136	struct lpfc_sli_ring;
	137
	138	struct lpfc_sli_ring_mask {
	139	uint8_t profile; /* profile associated with ring */
	140	uint8_t rctl; /* rctl / type pair configured for ring */
	141	uint8_t type; /* rctl / type pair configured for ring */
	142	uint8_t rsvd;
	143	/* rcv'd unsol event */
	144	void (lpfc_sli_rcv_unsol_event) (struct lpfc_hba ,
	145	struct lpfc_sli_ring *,
	146	struct lpfc_iocbq *);
	147	};
	148
	149
	150	/* Structure used to hold SLI statistical counters and info */
	151	struct lpfc_sli_ring_stat {
	152	uint64_t iocb_event; /* IOCB event counters */
	153	uint64_t iocb_cmd; /* IOCB cmd issued */
	154	uint64_t iocb_rsp; /* IOCB rsp received */
	155	uint64_t iocb_cmd_delay; /* IOCB cmd ring delay */
	156	uint64_t iocb_cmd_full; /* IOCB cmd ring full */
	157	uint64_t iocb_cmd_empty; /* IOCB cmd ring is now empty */
	158	uint64_t iocb_rsp_full; /* IOCB rsp ring full */
	159	};
	160
	161	/* Structure used to hold SLI ring information */
	162	struct lpfc_sli_ring {
	163	uint16_t flag; /* ring flags */
	164	#define LPFC_DEFERRED_RING_EVENT 0x001 /* Deferred processing a ring event */
	165	#define LPFC_CALL_RING_AVAILABLE 0x002 /* indicates cmd was full */
dea3101e	166	#define LPFC_STOP_IOCB_EVENT 0x020 /* Stop processing IOCB cmds event */
dea3101e	167	uint16_t abtsiotag; /* tracks next iotag to use for ABTS */
	168
	169	uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */
	170	uint32_t next_cmdidx; /* next_cmd index */
f91b392c JSEC	171	uint32_t rspidx; /* current index in response ring */
f91b392c JSEC	172	uint32_t cmdidx; /* current index in command ring */
dea3101e	173	uint8_t rsvd;
dea3101e	174	uint8_t ringno; /* ring number */
dea3101e	175	uint16_t numCiocb; /* number of command iocb's per ring */
dea3101e	176	uint16_t numRiocb; /* number of rsp iocb's per ring */
ed957684	177	uint16_t sizeCiocb; /* Size of command iocb's in this ring */
311464ec	178	uint16_t sizeRiocb; /* Size of response iocb's in this ring */
dea3101e	179
	180	uint32_t fast_iotag; /* max fastlookup based iotag */
	181	uint32_t iotag_ctr; /* keeps track of the next iotag to use */
	182	uint32_t iotag_max; /* max iotag value to use */
dea3101e	183	struct list_head txq;
	184	uint16_t txq_cnt; /* current length of queue */
	185	uint16_t txq_max; /* max length */
	186	struct list_head txcmplq;
	187	uint16_t txcmplq_cnt; /* current length of queue */
	188	uint16_t txcmplq_max; /* max length */
	189	uint32_t cmdringaddr; / virtual address for cmd rings */
	190	uint32_t rspringaddr; / virtual address for rsp rings */
	191	uint32_t missbufcnt; /* keep track of buffers to post */
	192	struct list_head postbufq;
	193	uint16_t postbufq_cnt; /* current length of queue */
	194	uint16_t postbufq_max; /* max length */
	195	struct list_head iocb_continueq;
	196	uint16_t iocb_continueq_cnt; /* current length of queue */
	197	uint16_t iocb_continueq_max; /* max length */
9c2face6	198	struct list_head iocb_continue_saveq;
dea3101e	199
	200	struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK];
	201	uint32_t num_mask; /* number of mask entries in prt array */
57127f15 JS	202	void (lpfc_sli_rcv_async_status) (struct lpfc_hba ,
57127f15 JS	203	struct lpfc_sli_ring , struct lpfc_iocbq );
dea3101e	204
	205	struct lpfc_sli_ring_stat stats; /* SLI statistical info */
	206
	207	/* cmd ring available */
	208	void (lpfc_sli_cmd_available) (struct lpfc_hba ,
	209	struct lpfc_sli_ring *);
	210	};
	211
ed957684 JS	212	/* Structure used for configuring rings to a specific profile or rctl / type */
	213	struct lpfc_hbq_init {
	214	uint32_t rn; /* Receive buffer notification */
92d7f7b0	215	uint32_t entry_count; /* max # of entries in HBQ */
ed957684 JS	216	uint32_t headerLen; /* 0 if not profile 4 or 5 */
	217	uint32_t logEntry; /* Set to 1 if this HBQ used for LogEntry */
	218	uint32_t profile; /* Selection profile 0=all, 7=logentry */
	219	uint32_t ring_mask; /* Binds HBQ to a ring e.g. Ring0=b0001,
	220	* ring2=b0100 */
	221	uint32_t hbq_index; /* index of this hbq in ring .HBQs[] */
	222
	223	uint32_t seqlenoff;
	224	uint32_t maxlen;
	225	uint32_t seqlenbcnt;
	226	uint32_t cmdcodeoff;
	227	uint32_t cmdmatch[8];
	228	uint32_t mask_count; /* number of mask entries in prt array */
	229	struct hbq_mask hbqMasks[6];
92d7f7b0 JS	230
	231	/* Non-config rings fields to keep track of buffer allocations */
	232	uint32_t buffer_count; /* number of buffers allocated */
	233	uint32_t init_count; /* number to allocate when initialized */
	234	uint32_t add_count; /* number to allocate when starved */
ed957684 JS	235	} ;
ed957684 JS	236
dea3101e	237	/* Structure used to hold SLI statistical counters and info */
	238	struct lpfc_sli_stat {
	239	uint64_t mbox_stat_err; /* Mbox cmds completed status error */
	240	uint64_t mbox_cmd; /* Mailbox commands issued */
	241	uint64_t sli_intr; /* Count of Host Attention interrupts */
	242	uint32_t err_attn_event; /* Error Attn event counters */
	243	uint32_t link_event; /* Link event counters */
	244	uint32_t mbox_event; /* Mailbox event counters */
	245	uint32_t mbox_busy; /* Mailbox cmd busy */
	246	};
	247
64ba8818 JS	248	/* Structure to store link status values when port stats are reset */
	249	struct lpfc_lnk_stat {
	250	uint32_t link_failure_count;
	251	uint32_t loss_of_sync_count;
	252	uint32_t loss_of_signal_count;
	253	uint32_t prim_seq_protocol_err_count;
	254	uint32_t invalid_tx_word_count;
	255	uint32_t invalid_crc_count;
	256	uint32_t error_frames;
	257	uint32_t link_events;
	258	};
	259
dea3101e	260	/* Structure used to hold SLI information */
	261	struct lpfc_sli {
	262	uint32_t num_rings;
	263	uint32_t sli_flag;
	264
	265	/* Additional sli_flags */
	266	#define LPFC_SLI_MBOX_ACTIVE 0x100 /* HBA mailbox is currently active */
f4b4c68f	267	#define LPFC_SLI_ACTIVE 0x200 /* SLI in firmware is active */
dea3101e	268	#define LPFC_PROCESS_LA 0x400 /* Able to process link attention */
2e0fef85	269	#define LPFC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */
84774a4d	270	#define LPFC_MENLO_MAINT 0x1000 /* need for menl fw download */
da0436e9	271	#define LPFC_SLI_ASYNC_MBX_BLK 0x2000 /* Async mailbox is blocked */
dea3101e	272
	273	struct lpfc_sli_ring ring[LPFC_MAX_RING];
	274	int fcp_ring; /* ring used for FCP initiator commands */
	275	int next_ring;
	276
a4bc3379	277	int extra_ring; /* extra ring used for other protocols */
dea3101e	278
	279	struct lpfc_sli_stat slistat; /* SLI statistical info */
	280	struct list_head mboxq;
	281	uint16_t mboxq_cnt; /* current length of queue */
	282	uint16_t mboxq_max; /* max length */
	283	LPFC_MBOXQ_t mbox_active; / active mboxq information */
92d7f7b0	284	struct list_head mboxq_cmpl;
dea3101e	285
	286	struct timer_list mbox_tmo; /* Hold clk to timeout active mbox
	287	cmd */
	288
604a3e30 JB	289	#define LPFC_IOCBQ_LOOKUP_INCREMENT 1024
	290	struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */
	291	size_t iocbq_lookup_len; /* current lengs of the array */
	292	uint16_t last_iotag; /* last allocated IOTAG */
64ba8818 JS	293	unsigned long stats_start; /* in seconds */
64ba8818 JS	294	struct lpfc_lnk_stat lnk_stat_offsets;
dea3101e	295	};
dea3101e	296
a183a15f JS	297	/* Timeout for normal outstanding mbox command (Seconds) */
	298	#define LPFC_MBOX_TMO 30
	299	/* Timeout for non-flash-based outstanding sli_config mbox command (Seconds) */
	300	#define LPFC_MBOX_SLI4_CONFIG_TMO 60
	301	/* Timeout for flash-based outstanding sli_config mbox command (Seconds) */
	302	#define LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO 300
	303	/* Timeout for other flash-based outstanding mbox command (Seconds) */
	304	#define LPFC_MBOX_TMO_FLASH_CMD 300