xref: /linux/drivers/scsi/lpfc/lpfc_sli4.h (revision 08ec212c0f92cbf30e3ecc7349f18151714041d6)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2009-2011 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_XRI_EXCH_BUSY_WAIT_TMO		10000
23 #define LPFC_XRI_EXCH_BUSY_WAIT_T1   		10
24 #define LPFC_XRI_EXCH_BUSY_WAIT_T2              30000
25 #define LPFC_RELEASE_NOTIFICATION_INTERVAL	32
26 #define LPFC_RPI_LOW_WATER_MARK			10
27 
28 #define LPFC_UNREG_FCF                          1
29 #define LPFC_SKIP_UNREG_FCF                     0
30 
31 /* Amount of time in seconds for waiting FCF rediscovery to complete */
32 #define LPFC_FCF_REDISCOVER_WAIT_TMO		2000 /* msec */
33 
34 /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
35 #define LPFC_NEMBED_MBOX_SGL_CNT		254
36 
37 /* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
38 #define LPFC_FCP_IO_CHAN_DEF       4
39 #define LPFC_FCP_IO_CHAN_MIN       1
40 #define LPFC_FCP_IO_CHAN_MAX       16
41 
42 /*
43  * Provide the default FCF Record attributes used by the driver
44  * when nonFIP mode is configured and there is no other default
45  * FCF Record attributes.
46  */
47 #define LPFC_FCOE_FCF_DEF_INDEX	0
48 #define LPFC_FCOE_FCF_GET_FIRST	0xFFFF
49 #define LPFC_FCOE_FCF_NEXT_NONE	0xFFFF
50 
51 #define LPFC_FCOE_NULL_VID	0xFFF
52 #define LPFC_FCOE_IGNORE_VID	0xFFFF
53 
54 /* First 3 bytes of default FCF MAC is specified by FC_MAP */
55 #define LPFC_FCOE_FCF_MAC3	0xFF
56 #define LPFC_FCOE_FCF_MAC4	0xFF
57 #define LPFC_FCOE_FCF_MAC5	0xFE
58 #define LPFC_FCOE_FCF_MAP0	0x0E
59 #define LPFC_FCOE_FCF_MAP1	0xFC
60 #define LPFC_FCOE_FCF_MAP2	0x00
61 #define LPFC_FCOE_MAX_RCV_SIZE	0x800
62 #define LPFC_FCOE_FKA_ADV_PER	0
63 #define LPFC_FCOE_FIP_PRIORITY	0x80
64 
65 #define sli4_sid_from_fc_hdr(fc_hdr)  \
66 	((fc_hdr)->fh_s_id[0] << 16 | \
67 	 (fc_hdr)->fh_s_id[1] <<  8 | \
68 	 (fc_hdr)->fh_s_id[2])
69 
70 #define sli4_did_from_fc_hdr(fc_hdr)  \
71 	((fc_hdr)->fh_d_id[0] << 16 | \
72 	 (fc_hdr)->fh_d_id[1] <<  8 | \
73 	 (fc_hdr)->fh_d_id[2])
74 
75 #define sli4_fctl_from_fc_hdr(fc_hdr)  \
76 	((fc_hdr)->fh_f_ctl[0] << 16 | \
77 	 (fc_hdr)->fh_f_ctl[1] <<  8 | \
78 	 (fc_hdr)->fh_f_ctl[2])
79 
80 #define sli4_type_from_fc_hdr(fc_hdr)  \
81 	((fc_hdr)->fh_type)
82 
83 #define LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT 12000
84 
85 enum lpfc_sli4_queue_type {
86 	LPFC_EQ,
87 	LPFC_GCQ,
88 	LPFC_MCQ,
89 	LPFC_WCQ,
90 	LPFC_RCQ,
91 	LPFC_MQ,
92 	LPFC_WQ,
93 	LPFC_HRQ,
94 	LPFC_DRQ
95 };
96 
97 /* The queue sub-type defines the functional purpose of the queue */
98 enum lpfc_sli4_queue_subtype {
99 	LPFC_NONE,
100 	LPFC_MBOX,
101 	LPFC_FCP,
102 	LPFC_ELS,
103 	LPFC_USOL
104 };
105 
106 union sli4_qe {
107 	void *address;
108 	struct lpfc_eqe *eqe;
109 	struct lpfc_cqe *cqe;
110 	struct lpfc_mcqe *mcqe;
111 	struct lpfc_wcqe_complete *wcqe_complete;
112 	struct lpfc_wcqe_release *wcqe_release;
113 	struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
114 	struct lpfc_rcqe_complete *rcqe_complete;
115 	struct lpfc_mqe *mqe;
116 	union  lpfc_wqe *wqe;
117 	struct lpfc_rqe *rqe;
118 };
119 
120 struct lpfc_queue {
121 	struct list_head list;
122 	enum lpfc_sli4_queue_type type;
123 	enum lpfc_sli4_queue_subtype subtype;
124 	struct lpfc_hba *phba;
125 	struct list_head child_list;
126 	uint32_t entry_count;	/* Number of entries to support on the queue */
127 	uint32_t entry_size;	/* Size of each queue entry. */
128 	uint32_t entry_repost;	/* Count of entries before doorbell is rung */
129 #define LPFC_QUEUE_MIN_REPOST	8
130 	uint32_t queue_id;	/* Queue ID assigned by the hardware */
131 	uint32_t assoc_qid;     /* Queue ID associated with, for CQ/WQ/MQ */
132 	struct list_head page_list;
133 	uint32_t page_count;	/* Number of pages allocated for this queue */
134 	uint32_t host_index;	/* The host's index for putting or getting */
135 	uint32_t hba_index;	/* The last known hba index for get or put */
136 
137 	struct lpfc_sli_ring *pring; /* ptr to io ring associated with q */
138 
139 	/* For q stats */
140 	uint32_t q_cnt_1;
141 	uint32_t q_cnt_2;
142 	uint32_t q_cnt_3;
143 	uint64_t q_cnt_4;
144 /* defines for EQ stats */
145 #define	EQ_max_eqe		q_cnt_1
146 #define	EQ_no_entry		q_cnt_2
147 #define	EQ_badstate		q_cnt_3
148 #define	EQ_processed		q_cnt_4
149 
150 /* defines for CQ stats */
151 #define	CQ_mbox			q_cnt_1
152 #define	CQ_max_cqe		q_cnt_1
153 #define	CQ_release_wqe		q_cnt_2
154 #define	CQ_xri_aborted		q_cnt_3
155 #define	CQ_wq			q_cnt_4
156 
157 /* defines for WQ stats */
158 #define	WQ_overflow		q_cnt_1
159 #define	WQ_posted		q_cnt_4
160 
161 /* defines for RQ stats */
162 #define	RQ_no_posted_buf	q_cnt_1
163 #define	RQ_no_buf_found		q_cnt_2
164 #define	RQ_buf_trunc		q_cnt_3
165 #define	RQ_rcv_buf		q_cnt_4
166 
167 	union sli4_qe qe[1];	/* array to index entries (must be last) */
168 };
169 
170 struct lpfc_sli4_link {
171 	uint16_t speed;
172 	uint8_t duplex;
173 	uint8_t status;
174 	uint8_t type;
175 	uint8_t number;
176 	uint8_t fault;
177 	uint16_t logical_speed;
178 	uint16_t topology;
179 };
180 
181 struct lpfc_fcf_rec {
182 	uint8_t  fabric_name[8];
183 	uint8_t  switch_name[8];
184 	uint8_t  mac_addr[6];
185 	uint16_t fcf_indx;
186 	uint32_t priority;
187 	uint16_t vlan_id;
188 	uint32_t addr_mode;
189 	uint32_t flag;
190 #define BOOT_ENABLE	0x01
191 #define RECORD_VALID	0x02
192 };
193 
194 struct lpfc_fcf_pri_rec {
195 	uint16_t fcf_index;
196 #define LPFC_FCF_ON_PRI_LIST 0x0001
197 #define LPFC_FCF_FLOGI_FAILED 0x0002
198 	uint16_t flag;
199 	uint32_t priority;
200 };
201 
202 struct lpfc_fcf_pri {
203 	struct list_head list;
204 	struct lpfc_fcf_pri_rec fcf_rec;
205 };
206 
207 /*
208  * Maximum FCF table index, it is for driver internal book keeping, it
209  * just needs to be no less than the supported HBA's FCF table size.
210  */
211 #define LPFC_SLI4_FCF_TBL_INDX_MAX	32
212 
213 struct lpfc_fcf {
214 	uint16_t fcfi;
215 	uint32_t fcf_flag;
216 #define FCF_AVAILABLE	0x01 /* FCF available for discovery */
217 #define FCF_REGISTERED	0x02 /* FCF registered with FW */
218 #define FCF_SCAN_DONE	0x04 /* FCF table scan done */
219 #define FCF_IN_USE	0x08 /* Atleast one discovery completed */
220 #define FCF_INIT_DISC	0x10 /* Initial FCF discovery */
221 #define FCF_DEAD_DISC	0x20 /* FCF DEAD fast FCF failover discovery */
222 #define FCF_ACVL_DISC	0x40 /* All CVL fast FCF failover discovery */
223 #define FCF_DISCOVERY	(FCF_INIT_DISC | FCF_DEAD_DISC | FCF_ACVL_DISC)
224 #define FCF_REDISC_PEND	0x80 /* FCF rediscovery pending */
225 #define FCF_REDISC_EVT	0x100 /* FCF rediscovery event to worker thread */
226 #define FCF_REDISC_FOV	0x200 /* Post FCF rediscovery fast failover */
227 #define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
228 	uint32_t addr_mode;
229 	uint32_t eligible_fcf_cnt;
230 	struct lpfc_fcf_rec current_rec;
231 	struct lpfc_fcf_rec failover_rec;
232 	struct list_head fcf_pri_list;
233 	struct lpfc_fcf_pri fcf_pri[LPFC_SLI4_FCF_TBL_INDX_MAX];
234 	uint32_t current_fcf_scan_pri;
235 	struct timer_list redisc_wait;
236 	unsigned long *fcf_rr_bmask; /* Eligible FCF indexes for RR failover */
237 };
238 
239 
240 #define LPFC_REGION23_SIGNATURE "RG23"
241 #define LPFC_REGION23_VERSION	1
242 #define LPFC_REGION23_LAST_REC  0xff
243 #define DRIVER_SPECIFIC_TYPE	0xA2
244 #define LINUX_DRIVER_ID		0x20
245 #define PORT_STE_TYPE		0x1
246 
247 struct lpfc_fip_param_hdr {
248 	uint8_t type;
249 #define FCOE_PARAM_TYPE		0xA0
250 	uint8_t length;
251 #define FCOE_PARAM_LENGTH	2
252 	uint8_t parm_version;
253 #define FIPP_VERSION		0x01
254 	uint8_t parm_flags;
255 #define	lpfc_fip_param_hdr_fipp_mode_SHIFT	6
256 #define	lpfc_fip_param_hdr_fipp_mode_MASK	0x3
257 #define lpfc_fip_param_hdr_fipp_mode_WORD	parm_flags
258 #define	FIPP_MODE_ON				0x1
259 #define	FIPP_MODE_OFF				0x0
260 #define FIPP_VLAN_VALID				0x1
261 };
262 
263 struct lpfc_fcoe_params {
264 	uint8_t fc_map[3];
265 	uint8_t reserved1;
266 	uint16_t vlan_tag;
267 	uint8_t reserved[2];
268 };
269 
270 struct lpfc_fcf_conn_hdr {
271 	uint8_t type;
272 #define FCOE_CONN_TBL_TYPE		0xA1
273 	uint8_t length;   /* words */
274 	uint8_t reserved[2];
275 };
276 
277 struct lpfc_fcf_conn_rec {
278 	uint16_t flags;
279 #define	FCFCNCT_VALID		0x0001
280 #define	FCFCNCT_BOOT		0x0002
281 #define	FCFCNCT_PRIMARY		0x0004   /* if not set, Secondary */
282 #define	FCFCNCT_FBNM_VALID	0x0008
283 #define	FCFCNCT_SWNM_VALID	0x0010
284 #define	FCFCNCT_VLAN_VALID	0x0020
285 #define	FCFCNCT_AM_VALID	0x0040
286 #define	FCFCNCT_AM_PREFERRED	0x0080   /* if not set, AM Required */
287 #define	FCFCNCT_AM_SPMA		0x0100	 /* if not set, FPMA */
288 
289 	uint16_t vlan_tag;
290 	uint8_t fabric_name[8];
291 	uint8_t switch_name[8];
292 };
293 
294 struct lpfc_fcf_conn_entry {
295 	struct list_head list;
296 	struct lpfc_fcf_conn_rec conn_rec;
297 };
298 
299 /*
300  * Define the host's bootstrap mailbox.  This structure contains
301  * the member attributes needed to create, use, and destroy the
302  * bootstrap mailbox region.
303  *
304  * The macro definitions for the bmbx data structure are defined
305  * in lpfc_hw4.h with the register definition.
306  */
307 struct lpfc_bmbx {
308 	struct lpfc_dmabuf *dmabuf;
309 	struct dma_address dma_address;
310 	void *avirt;
311 	dma_addr_t aphys;
312 	uint32_t bmbx_size;
313 };
314 
315 #define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
316 
317 #define LPFC_EQE_SIZE_4B 	4
318 #define LPFC_EQE_SIZE_16B	16
319 #define LPFC_CQE_SIZE		16
320 #define LPFC_WQE_SIZE		64
321 #define LPFC_MQE_SIZE		256
322 #define LPFC_RQE_SIZE		8
323 
324 #define LPFC_EQE_DEF_COUNT	1024
325 #define LPFC_CQE_DEF_COUNT      1024
326 #define LPFC_WQE_DEF_COUNT      256
327 #define LPFC_MQE_DEF_COUNT      16
328 #define LPFC_RQE_DEF_COUNT	512
329 
330 #define LPFC_QUEUE_NOARM	false
331 #define LPFC_QUEUE_REARM	true
332 
333 
334 /*
335  * SLI4 CT field defines
336  */
337 #define SLI4_CT_RPI 0
338 #define SLI4_CT_VPI 1
339 #define SLI4_CT_VFI 2
340 #define SLI4_CT_FCFI 3
341 
342 #define LPFC_SLI4_FL1_MAX_SEGMENT_SIZE	0x10000
343 #define LPFC_SLI4_FL1_MAX_BUF_SIZE	0X2000
344 #define LPFC_SLI4_MIN_BUF_SIZE		0x400
345 #define LPFC_SLI4_MAX_BUF_SIZE		0x20000
346 
347 /*
348  * SLI4 specific data structures
349  */
350 struct lpfc_max_cfg_param {
351 	uint16_t max_xri;
352 	uint16_t xri_base;
353 	uint16_t xri_used;
354 	uint16_t max_rpi;
355 	uint16_t rpi_base;
356 	uint16_t rpi_used;
357 	uint16_t max_vpi;
358 	uint16_t vpi_base;
359 	uint16_t vpi_used;
360 	uint16_t max_vfi;
361 	uint16_t vfi_base;
362 	uint16_t vfi_used;
363 	uint16_t max_fcfi;
364 	uint16_t fcfi_used;
365 	uint16_t max_eq;
366 	uint16_t max_rq;
367 	uint16_t max_cq;
368 	uint16_t max_wq;
369 };
370 
371 struct lpfc_hba;
372 /* SLI4 HBA multi-fcp queue handler struct */
373 struct lpfc_fcp_eq_hdl {
374 	uint32_t idx;
375 	struct lpfc_hba *phba;
376 	atomic_t fcp_eq_in_use;
377 };
378 
379 /* Port Capabilities for SLI4 Parameters */
380 struct lpfc_pc_sli4_params {
381 	uint32_t supported;
382 	uint32_t if_type;
383 	uint32_t sli_rev;
384 	uint32_t sli_family;
385 	uint32_t featurelevel_1;
386 	uint32_t featurelevel_2;
387 	uint32_t proto_types;
388 #define LPFC_SLI4_PROTO_FCOE	0x0000001
389 #define LPFC_SLI4_PROTO_FC	0x0000002
390 #define LPFC_SLI4_PROTO_NIC	0x0000004
391 #define LPFC_SLI4_PROTO_ISCSI	0x0000008
392 #define LPFC_SLI4_PROTO_RDMA	0x0000010
393 	uint32_t sge_supp_len;
394 	uint32_t if_page_sz;
395 	uint32_t rq_db_window;
396 	uint32_t loopbk_scope;
397 	uint32_t eq_pages_max;
398 	uint32_t eqe_size;
399 	uint32_t cq_pages_max;
400 	uint32_t cqe_size;
401 	uint32_t mq_pages_max;
402 	uint32_t mqe_size;
403 	uint32_t mq_elem_cnt;
404 	uint32_t wq_pages_max;
405 	uint32_t wqe_size;
406 	uint32_t rq_pages_max;
407 	uint32_t rqe_size;
408 	uint32_t hdr_pages_max;
409 	uint32_t hdr_size;
410 	uint32_t hdr_pp_align;
411 	uint32_t sgl_pages_max;
412 	uint32_t sgl_pp_align;
413 	uint8_t cqv;
414 	uint8_t mqv;
415 	uint8_t wqv;
416 	uint8_t rqv;
417 };
418 
419 struct lpfc_iov {
420 	uint32_t pf_number;
421 	uint32_t vf_number;
422 };
423 
424 struct lpfc_sli4_lnk_info {
425 	uint8_t lnk_dv;
426 #define LPFC_LNK_DAT_INVAL	0
427 #define LPFC_LNK_DAT_VAL	1
428 	uint8_t lnk_tp;
429 #define LPFC_LNK_GE	0x0 /* FCoE */
430 #define LPFC_LNK_FC	0x1 /* FC   */
431 	uint8_t lnk_no;
432 };
433 
434 #define LPFC_SLI4_HANDLER_NAME_SZ	16
435 
436 /* SLI4 HBA data structure entries */
437 struct lpfc_sli4_hba {
438 	void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
439 					     PCI BAR0, config space registers */
440 	void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
441 					     PCI BAR1, control registers */
442 	void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
443 					     PCI BAR2, doorbell registers */
444 	union {
445 		struct {
446 			/* IF Type 0, BAR 0 PCI cfg space reg mem map */
447 			void __iomem *UERRLOregaddr;
448 			void __iomem *UERRHIregaddr;
449 			void __iomem *UEMASKLOregaddr;
450 			void __iomem *UEMASKHIregaddr;
451 		} if_type0;
452 		struct {
453 			/* IF Type 2, BAR 0 PCI cfg space reg mem map. */
454 			void __iomem *STATUSregaddr;
455 			void __iomem *CTRLregaddr;
456 			void __iomem *ERR1regaddr;
457 #define SLIPORT_ERR1_REG_ERR_CODE_1		0x1
458 #define SLIPORT_ERR1_REG_ERR_CODE_2		0x2
459 			void __iomem *ERR2regaddr;
460 #define SLIPORT_ERR2_REG_FW_RESTART		0x0
461 #define SLIPORT_ERR2_REG_FUNC_PROVISON		0x1
462 #define SLIPORT_ERR2_REG_FORCED_DUMP		0x2
463 #define SLIPORT_ERR2_REG_FAILURE_EQ		0x3
464 #define SLIPORT_ERR2_REG_FAILURE_CQ		0x4
465 #define SLIPORT_ERR2_REG_FAILURE_BUS		0x5
466 #define SLIPORT_ERR2_REG_FAILURE_RQ		0x6
467 		} if_type2;
468 	} u;
469 
470 	/* IF type 0, BAR1 and if type 2, Bar 0 CSR register memory map */
471 	void __iomem *PSMPHRregaddr;
472 
473 	/* Well-known SLI INTF register memory map. */
474 	void __iomem *SLIINTFregaddr;
475 
476 	/* IF type 0, BAR 1 function CSR register memory map */
477 	void __iomem *ISRregaddr;	/* HST_ISR register */
478 	void __iomem *IMRregaddr;	/* HST_IMR register */
479 	void __iomem *ISCRregaddr;	/* HST_ISCR register */
480 	/* IF type 0, BAR 0 and if type 2, BAR 0 doorbell register memory map */
481 	void __iomem *RQDBregaddr;	/* RQ_DOORBELL register */
482 	void __iomem *WQDBregaddr;	/* WQ_DOORBELL register */
483 	void __iomem *EQCQDBregaddr;	/* EQCQ_DOORBELL register */
484 	void __iomem *MQDBregaddr;	/* MQ_DOORBELL register */
485 	void __iomem *BMBXregaddr;	/* BootStrap MBX register */
486 
487 	uint32_t ue_mask_lo;
488 	uint32_t ue_mask_hi;
489 	struct lpfc_register sli_intf;
490 	struct lpfc_pc_sli4_params pc_sli4_params;
491 	struct msix_entry *msix_entries;
492 	uint8_t handler_name[LPFC_FCP_IO_CHAN_MAX][LPFC_SLI4_HANDLER_NAME_SZ];
493 	struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
494 
495 	/* Pointers to the constructed SLI4 queues */
496 	struct lpfc_queue **hba_eq;/* Event queues for HBA */
497 	struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
498 	struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
499 	uint16_t *fcp_cq_map;
500 
501 	struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
502 	struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
503 	struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
504 	struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
505 	struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
506 	struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
507 
508 	/* Setup information for various queue parameters */
509 	int eq_esize;
510 	int eq_ecount;
511 	int cq_esize;
512 	int cq_ecount;
513 	int wq_esize;
514 	int wq_ecount;
515 	int mq_esize;
516 	int mq_ecount;
517 	int rq_esize;
518 	int rq_ecount;
519 #define LPFC_SP_EQ_MAX_INTR_SEC         10000
520 #define LPFC_FP_EQ_MAX_INTR_SEC         10000
521 
522 	uint32_t intr_enable;
523 	struct lpfc_bmbx bmbx;
524 	struct lpfc_max_cfg_param max_cfg_param;
525 	uint16_t extents_in_use; /* must allocate resource extents. */
526 	uint16_t rpi_hdrs_in_use; /* must post rpi hdrs if set. */
527 	uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
528 	uint16_t next_rpi;
529 	uint16_t scsi_xri_max;
530 	uint16_t scsi_xri_cnt;
531 	uint16_t els_xri_cnt;
532 	uint16_t scsi_xri_start;
533 	struct list_head lpfc_free_sgl_list;
534 	struct list_head lpfc_sgl_list;
535 	struct list_head lpfc_abts_els_sgl_list;
536 	struct list_head lpfc_abts_scsi_buf_list;
537 	struct lpfc_sglq **lpfc_sglq_active_list;
538 	struct list_head lpfc_rpi_hdr_list;
539 	unsigned long *rpi_bmask;
540 	uint16_t *rpi_ids;
541 	uint16_t rpi_count;
542 	struct list_head lpfc_rpi_blk_list;
543 	unsigned long *xri_bmask;
544 	uint16_t *xri_ids;
545 	struct list_head lpfc_xri_blk_list;
546 	unsigned long *vfi_bmask;
547 	uint16_t *vfi_ids;
548 	uint16_t vfi_count;
549 	struct list_head lpfc_vfi_blk_list;
550 	struct lpfc_sli4_flags sli4_flags;
551 	struct list_head sp_queue_event;
552 	struct list_head sp_cqe_event_pool;
553 	struct list_head sp_asynce_work_queue;
554 	struct list_head sp_fcp_xri_aborted_work_queue;
555 	struct list_head sp_els_xri_aborted_work_queue;
556 	struct list_head sp_unsol_work_queue;
557 	struct lpfc_sli4_link link_state;
558 	struct lpfc_sli4_lnk_info lnk_info;
559 	uint32_t pport_name_sta;
560 #define LPFC_SLI4_PPNAME_NON	0
561 #define LPFC_SLI4_PPNAME_GET	1
562 	struct lpfc_iov iov;
563 	spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
564 	spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
565 };
566 
567 enum lpfc_sge_type {
568 	GEN_BUFF_TYPE,
569 	SCSI_BUFF_TYPE
570 };
571 
572 enum lpfc_sgl_state {
573 	SGL_FREED,
574 	SGL_ALLOCATED,
575 	SGL_XRI_ABORTED
576 };
577 
578 struct lpfc_sglq {
579 	/* lpfc_sglqs are used in double linked lists */
580 	struct list_head list;
581 	struct list_head clist;
582 	enum lpfc_sge_type buff_type; /* is this a scsi sgl */
583 	enum lpfc_sgl_state state;
584 	struct lpfc_nodelist *ndlp; /* ndlp associated with IO */
585 	uint16_t iotag;         /* pre-assigned IO tag */
586 	uint16_t sli4_lxritag;  /* logical pre-assigned xri. */
587 	uint16_t sli4_xritag;   /* pre-assigned XRI, (OXID) tag. */
588 	struct sli4_sge *sgl;	/* pre-assigned SGL */
589 	void *virt;		/* virtual address. */
590 	dma_addr_t phys;	/* physical address */
591 };
592 
593 struct lpfc_rpi_hdr {
594 	struct list_head list;
595 	uint32_t len;
596 	struct lpfc_dmabuf *dmabuf;
597 	uint32_t page_count;
598 	uint32_t start_rpi;
599 };
600 
601 struct lpfc_rsrc_blks {
602 	struct list_head list;
603 	uint16_t rsrc_start;
604 	uint16_t rsrc_size;
605 	uint16_t rsrc_used;
606 };
607 
608 /*
609  * SLI4 specific function prototypes
610  */
611 int lpfc_pci_function_reset(struct lpfc_hba *);
612 int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *);
613 int lpfc_sli4_hba_setup(struct lpfc_hba *);
614 int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
615 		     uint8_t, uint32_t, bool);
616 void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
617 void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
618 void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
619 			   struct lpfc_mbx_sge *);
620 int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
621 			       uint16_t);
622 
623 void lpfc_sli4_hba_reset(struct lpfc_hba *);
624 struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
625 			uint32_t);
626 void lpfc_sli4_queue_free(struct lpfc_queue *);
627 uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
628 uint32_t lpfc_modify_fcp_eq_delay(struct lpfc_hba *, uint16_t);
629 uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
630 			struct lpfc_queue *, uint32_t, uint32_t);
631 int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
632 		       struct lpfc_queue *, uint32_t);
633 uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
634 			struct lpfc_queue *, uint32_t);
635 uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
636 			struct lpfc_queue *, struct lpfc_queue *, uint32_t);
637 void lpfc_rq_adjust_repost(struct lpfc_hba *, struct lpfc_queue *, int);
638 uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
639 uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
640 uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
641 uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
642 uint32_t lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
643 			 struct lpfc_queue *);
644 int lpfc_sli4_queue_setup(struct lpfc_hba *);
645 void lpfc_sli4_queue_unset(struct lpfc_hba *);
646 int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
647 int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
648 uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
649 int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
650 int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
651 struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
652 struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
653 void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
654 void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
655 int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
656 int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
657 int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
658 struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
659 void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
660 int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
661 void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
662 void lpfc_sli4_remove_rpis(struct lpfc_hba *);
663 void lpfc_sli4_async_event_proc(struct lpfc_hba *);
664 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
665 int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
666 			void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
667 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
668 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
669 void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
670 			       struct sli4_wcqe_xri_aborted *);
671 void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
672 			       struct sli4_wcqe_xri_aborted *);
673 void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
674 void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
675 int lpfc_sli4_brdreset(struct lpfc_hba *);
676 int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
677 void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
678 int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
679 int lpfc_sli4_init_vpi(struct lpfc_vport *);
680 uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
681 uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
682 void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
683 int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
684 int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
685 int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
686 void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
687 void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
688 void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
689 int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
690 int lpfc_sli4_post_status_check(struct lpfc_hba *);
691 uint8_t lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
692 uint8_t lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
693