1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2009-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
10 * This program is free software; you can redistribute it and/or *
11 * modify it under the terms of version 2 of the GNU General *
12 * Public License as published by the Free Software Foundation. *
13 * This program is distributed in the hope that it will be useful. *
14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
18 * TO BE LEGALLY INVALID. See the GNU General Public License for *
19 * more details, a copy of which can be found in the file COPYING *
20 * included with this package. *
21 *******************************************************************/
23 #include <linux/irq_poll.h>
24 #include <linux/cpufreq.h>
26 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
27 #define CONFIG_SCSI_LPFC_DEBUG_FS
30 #define LPFC_ACTIVE_MBOX_WAIT_CNT 100
31 #define LPFC_XRI_EXCH_BUSY_WAIT_TMO 10000
32 #define LPFC_XRI_EXCH_BUSY_WAIT_T1 10
33 #define LPFC_XRI_EXCH_BUSY_WAIT_T2 30000
34 #define LPFC_RPI_LOW_WATER_MARK 10
36 #define LPFC_UNREG_FCF 1
37 #define LPFC_SKIP_UNREG_FCF 0
39 /* Amount of time in seconds for waiting FCF rediscovery to complete */
40 #define LPFC_FCF_REDISCOVER_WAIT_TMO 2000 /* msec */
42 /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
43 #define LPFC_NEMBED_MBOX_SGL_CNT 254
45 /* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
46 #define LPFC_HBA_HDWQ_MIN 0
47 #define LPFC_HBA_HDWQ_MAX 256
48 #define LPFC_HBA_HDWQ_DEF LPFC_HBA_HDWQ_MIN
50 /* irq_chann range, values */
51 #define LPFC_IRQ_CHANN_MIN 0
52 #define LPFC_IRQ_CHANN_MAX 256
53 #define LPFC_IRQ_CHANN_DEF LPFC_IRQ_CHANN_MIN
55 /* FCP MQ queue count limiting */
56 #define LPFC_FCP_MQ_THRESHOLD_MIN 0
57 #define LPFC_FCP_MQ_THRESHOLD_MAX 256
58 #define LPFC_FCP_MQ_THRESHOLD_DEF 8
61 * Provide the default FCF Record attributes used by the driver
62 * when nonFIP mode is configured and there is no other default
63 * FCF Record attributes.
65 #define LPFC_FCOE_FCF_DEF_INDEX 0
66 #define LPFC_FCOE_FCF_GET_FIRST 0xFFFF
67 #define LPFC_FCOE_FCF_NEXT_NONE 0xFFFF
69 #define LPFC_FCOE_NULL_VID 0xFFF
70 #define LPFC_FCOE_IGNORE_VID 0xFFFF
72 /* First 3 bytes of default FCF MAC is specified by FC_MAP */
73 #define LPFC_FCOE_FCF_MAC3 0xFF
74 #define LPFC_FCOE_FCF_MAC4 0xFF
75 #define LPFC_FCOE_FCF_MAC5 0xFE
76 #define LPFC_FCOE_FCF_MAP0 0x0E
77 #define LPFC_FCOE_FCF_MAP1 0xFC
78 #define LPFC_FCOE_FCF_MAP2 0x00
79 #define LPFC_FCOE_MAX_RCV_SIZE 0x800
80 #define LPFC_FCOE_FKA_ADV_PER 0
81 #define LPFC_FCOE_FIP_PRIORITY 0x80
83 #define sli4_sid_from_fc_hdr(fc_hdr) \
84 ((fc_hdr)->fh_s_id[0] << 16 | \
85 (fc_hdr)->fh_s_id[1] << 8 | \
88 #define sli4_did_from_fc_hdr(fc_hdr) \
89 ((fc_hdr)->fh_d_id[0] << 16 | \
90 (fc_hdr)->fh_d_id[1] << 8 | \
93 #define sli4_fctl_from_fc_hdr(fc_hdr) \
94 ((fc_hdr)->fh_f_ctl[0] << 16 | \
95 (fc_hdr)->fh_f_ctl[1] << 8 | \
96 (fc_hdr)->fh_f_ctl[2])
98 #define sli4_type_from_fc_hdr(fc_hdr) \
101 #define LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT 12000
103 #define INT_FW_UPGRADE 0
104 #define RUN_FW_UPGRADE 1
106 enum lpfc_sli4_queue_type {
118 /* The queue sub-type defines the functional purpose of the queue */
119 enum lpfc_sli4_queue_subtype {
131 uint16_t entry_count; /* Current number of RQ slots */
132 uint16_t buffer_count; /* Current number of buffers posted */
133 struct list_head rqb_buffer_list; /* buffers assigned to this HBQ */
134 /* Callback for HBQ buffer allocation */
135 struct rqb_dmabuf *(*rqb_alloc_buffer)(struct lpfc_hba *);
136 /* Callback for HBQ buffer free */
137 void (*rqb_free_buffer)(struct lpfc_hba *,
138 struct rqb_dmabuf *);
141 enum lpfc_poll_mode {
146 struct lpfc_idle_stat {
152 struct list_head list;
153 struct list_head wq_list;
156 * If interrupts are in effect on _all_ the eq's the footprint
157 * of polling code is zero (except mode). This memory is chec-
158 * ked for every io to see if the io needs to be polled and
159 * while completion to check if the eq's needs to be rearmed.
160 * Keep in same cacheline as the queue ptr to avoid cpu fetch
161 * stalls. Using 1B memory will leave us with 7B hole. Fill
162 * it with other frequently used members.
164 uint16_t last_cpu; /* most recent cpu */
167 uint8_t mode; /* interrupt or polling */
168 #define LPFC_EQ_INTERRUPT 0
169 #define LPFC_EQ_POLL 1
171 struct list_head wqfull_list;
172 enum lpfc_sli4_queue_type type;
173 enum lpfc_sli4_queue_subtype subtype;
174 struct lpfc_hba *phba;
175 struct list_head child_list;
176 struct list_head page_list;
177 struct list_head sgl_list;
178 struct list_head cpu_list;
179 uint32_t entry_count; /* Number of entries to support on the queue */
180 uint32_t entry_size; /* Size of each queue entry. */
181 uint32_t entry_cnt_per_pg;
182 uint32_t notify_interval; /* Queue Notification Interval
183 * For chip->host queues (EQ, CQ, RQ):
184 * specifies the interval (number of
185 * entries) where the doorbell is rung to
186 * notify the chip of entry consumption.
187 * For host->chip queues (WQ):
188 * specifies the interval (number of
189 * entries) where consumption CQE is
190 * requested to indicate WQ entries
191 * consumed by the chip.
194 #define LPFC_EQ_NOTIFY_INTRVL 16
195 #define LPFC_CQ_NOTIFY_INTRVL 16
196 #define LPFC_WQ_NOTIFY_INTRVL 16
197 #define LPFC_RQ_NOTIFY_INTRVL 16
198 uint32_t max_proc_limit; /* Queue Processing Limit
199 * For chip->host queues (EQ, CQ):
200 * specifies the maximum number of
201 * entries to be consumed in one
202 * processing iteration sequence. Queue
203 * will be rearmed after each iteration.
204 * Not used on an MQ, RQ or WQ.
206 #define LPFC_EQ_MAX_PROC_LIMIT 256
207 #define LPFC_CQ_MIN_PROC_LIMIT 64
208 #define LPFC_CQ_MAX_PROC_LIMIT LPFC_CQE_EXP_COUNT // 4096
209 #define LPFC_CQ_DEF_MAX_PROC_LIMIT LPFC_CQE_DEF_COUNT // 1024
210 #define LPFC_CQ_MIN_THRESHOLD_TO_POLL 64
211 #define LPFC_CQ_MAX_THRESHOLD_TO_POLL LPFC_CQ_DEF_MAX_PROC_LIMIT
212 #define LPFC_CQ_DEF_THRESHOLD_TO_POLL LPFC_CQ_DEF_MAX_PROC_LIMIT
213 uint32_t queue_claimed; /* indicates queue is being processed */
214 uint32_t queue_id; /* Queue ID assigned by the hardware */
215 uint32_t assoc_qid; /* Queue ID associated with, for CQ/WQ/MQ */
216 uint32_t host_index; /* The host's index for putting or getting */
217 uint32_t hba_index; /* The last known hba index for get or put */
220 struct lpfc_sli_ring *pring; /* ptr to io ring associated with q */
221 struct lpfc_rqb *rqbp; /* ptr to RQ buffers */
223 uint16_t page_count; /* Number of pages allocated for this queue */
224 uint16_t page_size; /* size of page allocated for this queue */
225 #define LPFC_EXPANDED_PAGE_SIZE 16384
226 #define LPFC_DEFAULT_PAGE_SIZE 4096
227 uint16_t chann; /* Hardware Queue association WQ/CQ */
228 /* CPU affinity for EQ */
229 #define LPFC_FIND_BY_EQ 0
230 #define LPFC_FIND_BY_HDWQ 1
232 #define LPFC_DB_RING_FORMAT 0x01
233 #define LPFC_DB_LIST_FORMAT 0x02
235 #define HBA_NVMET_WQFULL 0x1 /* We hit WQ Full condition for NVMET */
236 #define HBA_NVMET_CQ_NOTIFY 0x1 /* LPFC_NVMET_CQ_NOTIFY CQEs this EQE */
237 #define HBA_EQ_DELAY_CHK 0x2 /* EQ is a candidate for coalescing */
238 #define LPFC_NVMET_CQ_NOTIFY 4
239 void __iomem *db_regaddr;
242 void __iomem *dpp_regaddr;
249 /* defines for EQ stats */
250 #define EQ_max_eqe q_cnt_1
251 #define EQ_no_entry q_cnt_2
252 #define EQ_cqe_cnt q_cnt_3
253 #define EQ_processed q_cnt_4
255 /* defines for CQ stats */
256 #define CQ_mbox q_cnt_1
257 #define CQ_max_cqe q_cnt_1
258 #define CQ_release_wqe q_cnt_2
259 #define CQ_xri_aborted q_cnt_3
260 #define CQ_wq q_cnt_4
262 /* defines for WQ stats */
263 #define WQ_overflow q_cnt_1
264 #define WQ_posted q_cnt_4
266 /* defines for RQ stats */
267 #define RQ_no_posted_buf q_cnt_1
268 #define RQ_no_buf_found q_cnt_2
269 #define RQ_buf_posted q_cnt_3
270 #define RQ_rcv_buf q_cnt_4
272 struct work_struct irqwork;
273 struct work_struct spwork;
274 struct delayed_work sched_irqwork;
275 struct delayed_work sched_spwork;
277 uint64_t isr_timestamp;
278 struct lpfc_queue *assoc_qp;
279 struct list_head _poll_list;
280 void **q_pgs; /* array to index entries per page */
282 #define LPFC_IRQ_POLL_WEIGHT 256
284 enum lpfc_poll_mode poll_mode;
287 struct lpfc_sli4_link {
294 uint32_t logical_speed;
298 struct lpfc_fcf_rec {
299 uint8_t fabric_name[8];
300 uint8_t switch_name[8];
307 #define BOOT_ENABLE 0x01
308 #define RECORD_VALID 0x02
311 struct lpfc_fcf_pri_rec {
313 #define LPFC_FCF_ON_PRI_LIST 0x0001
314 #define LPFC_FCF_FLOGI_FAILED 0x0002
319 struct lpfc_fcf_pri {
320 struct list_head list;
321 struct lpfc_fcf_pri_rec fcf_rec;
325 * Maximum FCF table index, it is for driver internal book keeping, it
326 * just needs to be no less than the supported HBA's FCF table size.
328 #define LPFC_SLI4_FCF_TBL_INDX_MAX 32
333 #define FCF_AVAILABLE 0x01 /* FCF available for discovery */
334 #define FCF_REGISTERED 0x02 /* FCF registered with FW */
335 #define FCF_SCAN_DONE 0x04 /* FCF table scan done */
336 #define FCF_IN_USE 0x08 /* Atleast one discovery completed */
337 #define FCF_INIT_DISC 0x10 /* Initial FCF discovery */
338 #define FCF_DEAD_DISC 0x20 /* FCF DEAD fast FCF failover discovery */
339 #define FCF_ACVL_DISC 0x40 /* All CVL fast FCF failover discovery */
340 #define FCF_DISCOVERY (FCF_INIT_DISC | FCF_DEAD_DISC | FCF_ACVL_DISC)
341 #define FCF_REDISC_PEND 0x80 /* FCF rediscovery pending */
342 #define FCF_REDISC_EVT 0x100 /* FCF rediscovery event to worker thread */
343 #define FCF_REDISC_FOV 0x200 /* Post FCF rediscovery fast failover */
344 #define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
345 uint16_t fcf_redisc_attempted;
347 uint32_t eligible_fcf_cnt;
348 struct lpfc_fcf_rec current_rec;
349 struct lpfc_fcf_rec failover_rec;
350 struct list_head fcf_pri_list;
351 struct lpfc_fcf_pri fcf_pri[LPFC_SLI4_FCF_TBL_INDX_MAX];
352 uint32_t current_fcf_scan_pri;
353 struct timer_list redisc_wait;
354 unsigned long *fcf_rr_bmask; /* Eligible FCF indexes for RR failover */
358 #define LPFC_REGION23_SIGNATURE "RG23"
359 #define LPFC_REGION23_VERSION 1
360 #define LPFC_REGION23_LAST_REC 0xff
361 #define DRIVER_SPECIFIC_TYPE 0xA2
362 #define LINUX_DRIVER_ID 0x20
363 #define PORT_STE_TYPE 0x1
365 struct lpfc_fip_param_hdr {
367 #define FCOE_PARAM_TYPE 0xA0
369 #define FCOE_PARAM_LENGTH 2
370 uint8_t parm_version;
371 #define FIPP_VERSION 0x01
373 #define lpfc_fip_param_hdr_fipp_mode_SHIFT 6
374 #define lpfc_fip_param_hdr_fipp_mode_MASK 0x3
375 #define lpfc_fip_param_hdr_fipp_mode_WORD parm_flags
376 #define FIPP_MODE_ON 0x1
377 #define FIPP_MODE_OFF 0x0
378 #define FIPP_VLAN_VALID 0x1
381 struct lpfc_fcoe_params {
388 struct lpfc_fcf_conn_hdr {
390 #define FCOE_CONN_TBL_TYPE 0xA1
391 uint8_t length; /* words */
395 struct lpfc_fcf_conn_rec {
397 #define FCFCNCT_VALID 0x0001
398 #define FCFCNCT_BOOT 0x0002
399 #define FCFCNCT_PRIMARY 0x0004 /* if not set, Secondary */
400 #define FCFCNCT_FBNM_VALID 0x0008
401 #define FCFCNCT_SWNM_VALID 0x0010
402 #define FCFCNCT_VLAN_VALID 0x0020
403 #define FCFCNCT_AM_VALID 0x0040
404 #define FCFCNCT_AM_PREFERRED 0x0080 /* if not set, AM Required */
405 #define FCFCNCT_AM_SPMA 0x0100 /* if not set, FPMA */
408 uint8_t fabric_name[8];
409 uint8_t switch_name[8];
412 struct lpfc_fcf_conn_entry {
413 struct list_head list;
414 struct lpfc_fcf_conn_rec conn_rec;
418 * Define the host's bootstrap mailbox. This structure contains
419 * the member attributes needed to create, use, and destroy the
420 * bootstrap mailbox region.
422 * The macro definitions for the bmbx data structure are defined
423 * in lpfc_hw4.h with the register definition.
426 struct lpfc_dmabuf *dmabuf;
427 struct dma_address dma_address;
433 #define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
435 #define LPFC_EQE_SIZE_4B 4
436 #define LPFC_EQE_SIZE_16B 16
437 #define LPFC_CQE_SIZE 16
438 #define LPFC_WQE_SIZE 64
439 #define LPFC_WQE128_SIZE 128
440 #define LPFC_MQE_SIZE 256
441 #define LPFC_RQE_SIZE 8
443 #define LPFC_EQE_DEF_COUNT 1024
444 #define LPFC_CQE_DEF_COUNT 1024
445 #define LPFC_CQE_EXP_COUNT 4096
446 #define LPFC_WQE_DEF_COUNT 256
447 #define LPFC_WQE_EXP_COUNT 1024
448 #define LPFC_MQE_DEF_COUNT 16
449 #define LPFC_RQE_DEF_COUNT 512
451 #define LPFC_QUEUE_NOARM false
452 #define LPFC_QUEUE_REARM true
456 * SLI4 CT field defines
458 #define SLI4_CT_RPI 0
459 #define SLI4_CT_VPI 1
460 #define SLI4_CT_VFI 2
461 #define SLI4_CT_FCFI 3
464 * SLI4 specific data structures
466 struct lpfc_max_cfg_param {
488 /* SLI4 HBA multi-fcp queue handler struct */
489 #define LPFC_SLI4_HANDLER_NAME_SZ 16
490 struct lpfc_hba_eq_hdl {
493 char handler_name[LPFC_SLI4_HANDLER_NAME_SZ];
494 struct lpfc_hba *phba;
495 struct lpfc_queue *eq;
496 struct cpumask aff_mask;
499 #define lpfc_get_eq_hdl(eqidx) (&phba->sli4_hba.hba_eq_hdl[eqidx])
500 #define lpfc_get_aff_mask(eqidx) (&phba->sli4_hba.hba_eq_hdl[eqidx].aff_mask)
501 #define lpfc_get_irq(eqidx) (phba->sli4_hba.hba_eq_hdl[eqidx].irq)
503 /*BB Credit recovery value*/
504 struct lpfc_bbscn_params {
506 #define lpfc_bbscn_min_SHIFT 0
507 #define lpfc_bbscn_min_MASK 0x0000000F
508 #define lpfc_bbscn_min_WORD word0
509 #define lpfc_bbscn_max_SHIFT 4
510 #define lpfc_bbscn_max_MASK 0x0000000F
511 #define lpfc_bbscn_max_WORD word0
512 #define lpfc_bbscn_def_SHIFT 8
513 #define lpfc_bbscn_def_MASK 0x0000000F
514 #define lpfc_bbscn_def_WORD word0
517 /* Port Capabilities for SLI4 Parameters */
518 struct lpfc_pc_sli4_params {
523 uint32_t featurelevel_1;
524 uint32_t featurelevel_2;
525 uint32_t proto_types;
526 #define LPFC_SLI4_PROTO_FCOE 0x0000001
527 #define LPFC_SLI4_PROTO_FC 0x0000002
528 #define LPFC_SLI4_PROTO_NIC 0x0000004
529 #define LPFC_SLI4_PROTO_ISCSI 0x0000008
530 #define LPFC_SLI4_PROTO_RDMA 0x0000010
531 uint32_t sge_supp_len;
533 uint32_t rq_db_window;
534 uint32_t loopbk_scope;
535 uint32_t oas_supported;
536 uint32_t eq_pages_max;
538 uint32_t cq_pages_max;
540 uint32_t mq_pages_max;
542 uint32_t mq_elem_cnt;
543 uint32_t wq_pages_max;
545 uint32_t rq_pages_max;
547 uint32_t hdr_pages_max;
549 uint32_t hdr_pp_align;
550 uint32_t sgl_pages_max;
551 uint32_t sgl_pp_align;
561 #define LPFC_WQ_SZ64_SUPPORT 1
562 #define LPFC_WQ_SZ128_SUPPORT 2
567 #define LPFC_CQ_4K_PAGE_SZ 0x1
568 #define LPFC_CQ_16K_PAGE_SZ 0x4
569 #define LPFC_WQ_4K_PAGE_SZ 0x1
570 #define LPFC_WQ_16K_PAGE_SZ 0x4
577 struct lpfc_sli4_lnk_info {
579 #define LPFC_LNK_DAT_INVAL 0
580 #define LPFC_LNK_DAT_VAL 1
582 #define LPFC_LNK_GE 0x0 /* FCoE */
583 #define LPFC_LNK_FC 0x1 /* FC */
584 #define LPFC_LNK_FC_TRUNKED 0x2 /* FC_Trunked */
589 #define LPFC_SLI4_HANDLER_CNT (LPFC_HBA_IO_CHAN_MAX+ \
590 LPFC_FOF_IO_CHAN_NUM)
592 /* Used for tracking CPU mapping attributes */
593 struct lpfc_vector_map_info {
599 #define LPFC_CPU_MAP_HYPER 0x1
600 #define LPFC_CPU_MAP_UNASSIGN 0x2
601 #define LPFC_CPU_FIRST_IRQ 0x4
603 #define LPFC_VECTOR_MAP_EMPTY 0xffff
608 struct lpfc_pbl_pool {
609 struct list_head list;
611 spinlock_t lock; /* lock for pbl_pool*/
614 struct lpfc_pvt_pool {
618 struct list_head list;
620 spinlock_t lock; /* lock for pvt_pool */
623 struct lpfc_multixri_pool {
626 /* Starting point when searching a pbl_pool with round-robin method */
629 /* Used by lpfc_adjust_pvt_pool_count.
630 * io_req_count is incremented by 1 during IO submission. The heartbeat
631 * handler uses these two variables to determine if pvt_pool is idle or
634 u32 prev_io_req_count;
640 u32 above_limit_count;
641 u32 below_limit_count;
642 u32 local_pbl_hit_count;
643 u32 other_pbl_hit_count;
646 #define LPFC_MXP_SNAPSHOT_TAKEN 3 /* snapshot is taken at 3rd heartbeats */
650 u32 stat_snapshot_taken;
653 /* TODO: Separate pvt_pool into get and put list */
654 struct lpfc_pbl_pool pbl_pool; /* Public free XRI pool */
655 struct lpfc_pvt_pool pvt_pool; /* Private free XRI pool */
658 struct lpfc_fc4_ctrl_stat {
661 u32 control_requests;
665 #ifdef LPFC_HDWQ_LOCK_STAT
666 struct lpfc_lock_stat {
667 uint32_t alloc_xri_get;
668 uint32_t alloc_xri_put;
671 uint32_t alloc_pvt_pool;
672 uint32_t mv_from_pvt_pool;
673 uint32_t mv_to_pub_pool;
674 uint32_t mv_to_pvt_pool;
675 uint32_t free_pub_pool;
676 uint32_t free_pvt_pool;
680 struct lpfc_eq_intr_info {
681 struct list_head list;
685 /* SLI4 HBA data structure entries */
686 struct lpfc_sli4_hdw_queue {
687 /* Pointers to the constructed SLI4 queues */
688 struct lpfc_queue *hba_eq; /* Event queues for HBA */
689 struct lpfc_queue *io_cq; /* Fast-path FCP & NVME compl queue */
690 struct lpfc_queue *io_wq; /* Fast-path FCP & NVME work queue */
693 /* Keep track of IO buffers for this hardware queue */
694 spinlock_t io_buf_list_get_lock; /* Common buf alloc list lock */
695 struct list_head lpfc_io_buf_list_get;
696 spinlock_t io_buf_list_put_lock; /* Common buf free list lock */
697 struct list_head lpfc_io_buf_list_put;
698 spinlock_t abts_io_buf_list_lock; /* list of aborted IOs */
699 struct list_head lpfc_abts_io_buf_list;
700 uint32_t total_io_bufs;
701 uint32_t get_io_bufs;
702 uint32_t put_io_bufs;
703 uint32_t empty_io_bufs;
704 uint32_t abts_scsi_io_bufs;
705 uint32_t abts_nvme_io_bufs;
707 /* Multi-XRI pool per HWQ */
708 struct lpfc_multixri_pool *p_multixri_pool;
710 /* FC-4 Stats counters */
711 struct lpfc_fc4_ctrl_stat nvme_cstat;
712 struct lpfc_fc4_ctrl_stat scsi_cstat;
713 #ifdef LPFC_HDWQ_LOCK_STAT
714 struct lpfc_lock_stat lock_conflict;
717 /* Per HDWQ pool resources */
718 struct list_head sgl_list;
719 struct list_head cmd_rsp_buf_list;
721 /* Lock for syncing Per HDWQ pool resources */
722 spinlock_t hdwq_lock;
725 #ifdef LPFC_HDWQ_LOCK_STAT
726 /* compile time trylock stats */
727 #define lpfc_qp_spin_lock_irqsave(lock, flag, qp, lstat) \
730 while (spin_trylock_irqsave(lock, flag) == 0) { \
733 qp->lock_conflict.lstat++; \
737 #define lpfc_qp_spin_lock(lock, qp, lstat) \
740 while (spin_trylock(lock) == 0) { \
743 qp->lock_conflict.lstat++; \
748 #define lpfc_qp_spin_lock_irqsave(lock, flag, qp, lstat) \
749 spin_lock_irqsave(lock, flag)
750 #define lpfc_qp_spin_lock(lock, qp, lstat) spin_lock(lock)
753 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
754 struct lpfc_hdwq_stat {
762 struct lpfc_sli4_hba {
763 void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
764 * config space registers
766 void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
769 void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
772 void __iomem *dpp_regs_memmap_p; /* Kernel memory mapped address for
777 /* IF Type 0, BAR 0 PCI cfg space reg mem map */
778 void __iomem *UERRLOregaddr;
779 void __iomem *UERRHIregaddr;
780 void __iomem *UEMASKLOregaddr;
781 void __iomem *UEMASKHIregaddr;
784 /* IF Type 2, BAR 0 PCI cfg space reg mem map. */
785 void __iomem *STATUSregaddr;
786 void __iomem *CTRLregaddr;
787 void __iomem *ERR1regaddr;
788 #define SLIPORT_ERR1_REG_ERR_CODE_1 0x1
789 #define SLIPORT_ERR1_REG_ERR_CODE_2 0x2
790 void __iomem *ERR2regaddr;
791 #define SLIPORT_ERR2_REG_FW_RESTART 0x0
792 #define SLIPORT_ERR2_REG_FUNC_PROVISON 0x1
793 #define SLIPORT_ERR2_REG_FORCED_DUMP 0x2
794 #define SLIPORT_ERR2_REG_FAILURE_EQ 0x3
795 #define SLIPORT_ERR2_REG_FAILURE_CQ 0x4
796 #define SLIPORT_ERR2_REG_FAILURE_BUS 0x5
797 #define SLIPORT_ERR2_REG_FAILURE_RQ 0x6
798 void __iomem *EQDregaddr;
802 /* IF type 0, BAR1 and if type 2, Bar 0 CSR register memory map */
803 void __iomem *PSMPHRregaddr;
805 /* Well-known SLI INTF register memory map. */
806 void __iomem *SLIINTFregaddr;
808 /* IF type 0, BAR 1 function CSR register memory map */
809 void __iomem *ISRregaddr; /* HST_ISR register */
810 void __iomem *IMRregaddr; /* HST_IMR register */
811 void __iomem *ISCRregaddr; /* HST_ISCR register */
812 /* IF type 0, BAR 0 and if type 2, BAR 0 doorbell register memory map */
813 void __iomem *RQDBregaddr; /* RQ_DOORBELL register */
814 void __iomem *WQDBregaddr; /* WQ_DOORBELL register */
815 void __iomem *CQDBregaddr; /* CQ_DOORBELL register */
816 void __iomem *EQDBregaddr; /* EQ_DOORBELL register */
817 void __iomem *MQDBregaddr; /* MQ_DOORBELL register */
818 void __iomem *BMBXregaddr; /* BootStrap MBX register */
824 struct lpfc_register sli_intf;
825 struct lpfc_pc_sli4_params pc_sli4_params;
826 struct lpfc_bbscn_params bbscn_params;
827 struct lpfc_hba_eq_hdl *hba_eq_hdl; /* HBA per-WQ handle */
829 void (*sli4_eq_clr_intr)(struct lpfc_queue *q);
830 void (*sli4_write_eq_db)(struct lpfc_hba *phba, struct lpfc_queue *eq,
831 uint32_t count, bool arm);
832 void (*sli4_write_cq_db)(struct lpfc_hba *phba, struct lpfc_queue *cq,
833 uint32_t count, bool arm);
835 /* Pointers to the constructed SLI4 queues */
836 struct lpfc_sli4_hdw_queue *hdwq;
837 struct list_head lpfc_wq_list;
839 /* Pointers to the constructed SLI4 queues for NVMET */
840 struct lpfc_queue **nvmet_cqset; /* Fast-path NVMET CQ Set queues */
841 struct lpfc_queue **nvmet_mrq_hdr; /* Fast-path NVMET hdr MRQs */
842 struct lpfc_queue **nvmet_mrq_data; /* Fast-path NVMET data MRQs */
844 struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
845 struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
846 struct lpfc_queue *nvmels_cq; /* NVME LS complete queue */
847 struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
848 struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
849 struct lpfc_queue *nvmels_wq; /* NVME LS work queue */
850 struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
851 struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
853 struct lpfc_name wwnn;
854 struct lpfc_name wwpn;
856 uint32_t fw_func_mode; /* FW function protocol mode */
857 uint32_t ulp0_mode; /* ULP0 protocol mode */
858 uint32_t ulp1_mode; /* ULP1 protocol mode */
860 /* Optimized Access Storage specific queues/structures */
861 uint64_t oas_next_lun;
862 uint8_t oas_next_tgt_wwpn[8];
863 uint8_t oas_next_vpt_wwpn[8];
865 /* Setup information for various queue parameters */
876 #define LPFC_SP_EQ_MAX_INTR_SEC 10000
877 #define LPFC_FP_EQ_MAX_INTR_SEC 10000
879 uint32_t intr_enable;
880 struct lpfc_bmbx bmbx;
881 struct lpfc_max_cfg_param max_cfg_param;
882 uint16_t extents_in_use; /* must allocate resource extents. */
883 uint16_t rpi_hdrs_in_use; /* must post rpi hdrs if set. */
884 uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
888 uint16_t io_xri_start;
889 uint16_t els_xri_cnt;
890 uint16_t nvmet_xri_cnt;
891 uint16_t nvmet_io_wait_cnt;
892 uint16_t nvmet_io_wait_total;
894 struct lpfc_queue **cq_lookup;
895 struct list_head lpfc_els_sgl_list;
896 struct list_head lpfc_abts_els_sgl_list;
897 spinlock_t abts_io_buf_list_lock; /* list of aborted SCSI IOs */
898 struct list_head lpfc_abts_io_buf_list;
899 struct list_head lpfc_nvmet_sgl_list;
900 spinlock_t abts_nvmet_buf_list_lock; /* list of aborted NVMET IOs */
901 struct list_head lpfc_abts_nvmet_ctx_list;
902 spinlock_t t_active_list_lock; /* list of active NVMET IOs */
903 struct list_head t_active_ctx_list;
904 struct list_head lpfc_nvmet_io_wait_list;
905 struct lpfc_nvmet_ctx_info *nvmet_ctx_info;
906 struct lpfc_sglq **lpfc_sglq_active_list;
907 struct list_head lpfc_rpi_hdr_list;
908 unsigned long *rpi_bmask;
911 struct list_head lpfc_rpi_blk_list;
912 unsigned long *xri_bmask;
914 struct list_head lpfc_xri_blk_list;
915 unsigned long *vfi_bmask;
918 struct list_head lpfc_vfi_blk_list;
919 struct lpfc_sli4_flags sli4_flags;
920 struct list_head sp_queue_event;
921 struct list_head sp_cqe_event_pool;
922 struct list_head sp_asynce_work_queue;
923 spinlock_t asynce_list_lock; /* protect sp_asynce_work_queue list */
924 struct list_head sp_els_xri_aborted_work_queue;
925 spinlock_t els_xri_abrt_list_lock; /* protect els_xri_aborted list */
926 struct list_head sp_unsol_work_queue;
927 struct lpfc_sli4_link link_state;
928 struct lpfc_sli4_lnk_info lnk_info;
929 uint32_t pport_name_sta;
930 #define LPFC_SLI4_PPNAME_NON 0
931 #define LPFC_SLI4_PPNAME_GET 1
933 spinlock_t sgl_list_lock; /* list of aborted els IOs */
934 spinlock_t nvmet_io_wait_lock; /* IOs waiting for ctx resources */
935 uint32_t physical_port;
937 /* CPU to vector mapping information */
938 struct lpfc_vector_map_info *cpu_map;
939 uint16_t num_possible_cpu;
940 uint16_t num_present_cpu;
941 struct cpumask irq_aff_mask;
942 uint16_t curr_disp_cpu;
943 struct lpfc_eq_intr_info __percpu *eq_info;
944 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
945 struct lpfc_hdwq_stat __percpu *c_stat;
947 struct lpfc_idle_stat *idle_stat;
949 #define lpfc_conf_trunk_port0_WORD conf_trunk
950 #define lpfc_conf_trunk_port0_SHIFT 0
951 #define lpfc_conf_trunk_port0_MASK 0x1
952 #define lpfc_conf_trunk_port1_WORD conf_trunk
953 #define lpfc_conf_trunk_port1_SHIFT 1
954 #define lpfc_conf_trunk_port1_MASK 0x1
955 #define lpfc_conf_trunk_port2_WORD conf_trunk
956 #define lpfc_conf_trunk_port2_SHIFT 2
957 #define lpfc_conf_trunk_port2_MASK 0x1
958 #define lpfc_conf_trunk_port3_WORD conf_trunk
959 #define lpfc_conf_trunk_port3_SHIFT 3
960 #define lpfc_conf_trunk_port3_MASK 0x1
961 #define lpfc_conf_trunk_port0_nd_WORD conf_trunk
962 #define lpfc_conf_trunk_port0_nd_SHIFT 4
963 #define lpfc_conf_trunk_port0_nd_MASK 0x1
964 #define lpfc_conf_trunk_port1_nd_WORD conf_trunk
965 #define lpfc_conf_trunk_port1_nd_SHIFT 5
966 #define lpfc_conf_trunk_port1_nd_MASK 0x1
967 #define lpfc_conf_trunk_port2_nd_WORD conf_trunk
968 #define lpfc_conf_trunk_port2_nd_SHIFT 6
969 #define lpfc_conf_trunk_port2_nd_MASK 0x1
970 #define lpfc_conf_trunk_port3_nd_WORD conf_trunk
971 #define lpfc_conf_trunk_port3_nd_SHIFT 7
972 #define lpfc_conf_trunk_port3_nd_MASK 0x1
981 enum lpfc_sgl_state {
988 /* lpfc_sglqs are used in double linked lists */
989 struct list_head list;
990 struct list_head clist;
991 enum lpfc_sge_type buff_type; /* is this a scsi sgl */
992 enum lpfc_sgl_state state;
993 struct lpfc_nodelist *ndlp; /* ndlp associated with IO */
994 uint16_t iotag; /* pre-assigned IO tag */
995 uint16_t sli4_lxritag; /* logical pre-assigned xri. */
996 uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
997 struct sli4_sge *sgl; /* pre-assigned SGL */
998 void *virt; /* virtual address. */
999 dma_addr_t phys; /* physical address */
1002 struct lpfc_rpi_hdr {
1003 struct list_head list;
1005 struct lpfc_dmabuf *dmabuf;
1006 uint32_t page_count;
1011 struct lpfc_rsrc_blks {
1012 struct list_head list;
1013 uint16_t rsrc_start;
1018 struct lpfc_rdp_context {
1019 struct lpfc_nodelist *ndlp;
1022 READ_LNK_VAR link_stat;
1023 uint8_t page_a0[DMP_SFF_PAGE_A0_SIZE];
1024 uint8_t page_a2[DMP_SFF_PAGE_A2_SIZE];
1025 void (*cmpl)(struct lpfc_hba *, struct lpfc_rdp_context*, int);
1028 struct lpfc_lcb_context {
1029 uint8_t sub_command;
1036 struct lpfc_nodelist *ndlp;
1041 * SLI4 specific function prototypes
1043 int lpfc_pci_function_reset(struct lpfc_hba *);
1044 int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *);
1045 int lpfc_sli4_hba_setup(struct lpfc_hba *);
1046 int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
1047 uint8_t, uint32_t, bool);
1048 void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
1049 void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
1050 void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
1051 struct lpfc_mbx_sge *);
1052 int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
1055 void lpfc_sli4_hba_reset(struct lpfc_hba *);
1056 struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *phba,
1058 uint32_t entry_size,
1059 uint32_t entry_count, int cpu);
1060 void lpfc_sli4_queue_free(struct lpfc_queue *);
1061 int lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
1062 void lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
1063 uint32_t numq, uint32_t usdelay);
1064 int lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
1065 struct lpfc_queue *, uint32_t, uint32_t);
1066 int lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
1067 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
1069 int32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
1070 struct lpfc_queue *, uint32_t);
1071 int lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
1072 struct lpfc_queue *, uint32_t);
1073 int lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
1074 struct lpfc_queue *, struct lpfc_queue *, uint32_t);
1075 int lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
1076 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
1078 int lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
1079 int lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
1080 int lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
1081 int lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
1082 int lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
1083 struct lpfc_queue *);
1084 int lpfc_sli4_queue_setup(struct lpfc_hba *);
1085 void lpfc_sli4_queue_unset(struct lpfc_hba *);
1086 int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
1087 int lpfc_repost_io_sgl_list(struct lpfc_hba *phba);
1088 uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
1089 void lpfc_sli4_free_xri(struct lpfc_hba *, int);
1090 int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
1091 struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
1092 struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
1093 void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
1094 void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
1095 int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
1096 int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
1097 int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
1098 struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
1099 void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
1100 int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
1101 void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
1102 void lpfc_sli4_remove_rpis(struct lpfc_hba *);
1103 void lpfc_sli4_async_event_proc(struct lpfc_hba *);
1104 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
1105 int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
1106 void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
1107 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba);
1108 void lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
1109 struct sli4_wcqe_xri_aborted *axri,
1110 struct lpfc_io_buf *lpfc_ncmd);
1111 void lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
1112 struct sli4_wcqe_xri_aborted *axri, int idx);
1113 void lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
1114 struct sli4_wcqe_xri_aborted *axri);
1115 void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
1116 struct sli4_wcqe_xri_aborted *);
1117 void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
1118 void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
1119 int lpfc_sli4_brdreset(struct lpfc_hba *);
1120 int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
1121 void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
1122 int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
1123 int lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba);
1124 int lpfc_sli4_init_vpi(struct lpfc_vport *);
1125 void lpfc_sli4_eq_clr_intr(struct lpfc_queue *);
1126 void lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
1127 uint32_t count, bool arm);
1128 void lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
1129 uint32_t count, bool arm);
1130 void lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q);
1131 void lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
1132 uint32_t count, bool arm);
1133 void lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
1134 uint32_t count, bool arm);
1135 void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
1136 int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
1137 int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
1138 int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
1139 void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
1140 void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
1141 void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
1142 int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
1143 int lpfc_sli4_post_status_check(struct lpfc_hba *);
1144 uint8_t lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
1145 uint8_t lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
1146 void lpfc_sli4_ras_dma_free(struct lpfc_hba *phba);
1147 struct sli4_hybrid_sgl *lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba,
1148 struct lpfc_io_buf *buf);
1149 struct fcp_cmd_rsp_buf *lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
1150 struct lpfc_io_buf *buf);
1151 int lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *buf);
1152 int lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
1153 struct lpfc_io_buf *buf);
1154 void lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
1155 struct lpfc_sli4_hdw_queue *hdwq);
1156 void lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
1157 struct lpfc_sli4_hdw_queue *hdwq);
1158 static inline void *lpfc_sli4_qe(struct lpfc_queue *q, uint16_t idx)
1160 return q->q_pgs[idx / q->entry_cnt_per_pg] +
1161 (q->entry_size * (idx % q->entry_cnt_per_pg));