1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <scsi/scsi_host.h>
23 struct lpfc_sli2_slim;
24
25 #define LPFC_PCI_DEV_LP 0x1
26 #define LPFC_PCI_DEV_OC 0x2
27
28 #define LPFC_SLI_REV2 2
29 #define LPFC_SLI_REV3 3
30 #define LPFC_SLI_REV4 4
31
32 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */
33 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
34 requests */
35 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
36 the NameServer before giving up. */
37 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
38 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
39 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi
40 cmnd for menlo needs nearly twice as for firmware
41 downloads using bsg */
42 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */
43 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */
44 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/
45 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
46 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
47 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */
48 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
49 queue depth change in millisecs */
50 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
51 #define LPFC_MIN_TGT_QDEPTH 10
52 #define LPFC_MAX_TGT_QDEPTH 0xFFFF
53
54 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
55 collection. */
56 /*
57 * Following time intervals are used of adjusting SCSI device
58 * queue depths when there are driver resource error or Firmware
59 * resource error.
60 */
61 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
62 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
63
64 /* Number of exchanges reserved for discovery to complete */
65 #define LPFC_DISC_IOCB_BUFF_COUNT 20
66
67 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
68 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
69
70 /* Error Attention event polling interval */
71 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
72
73 /* Define macros for 64 bit support */
74 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
75 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
76 #define getPaddr(high, low) ((dma_addr_t)( \
77 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
78 /* Provide maximum configuration definitions. */
79 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
80 #define FC_MAX_ADPTMSG 64
81
82 #define MAX_HBAEVT 32
83
84 /* Number of MSI-X vectors the driver uses */
85 #define LPFC_MSIX_VECTORS 2
86
87 /* lpfc wait event data ready flag */
88 #define LPFC_DATA_READY (1<<0)
89
90 enum lpfc_polling_flags {
91 ENABLE_FCP_RING_POLLING = 0x1,
92 DISABLE_FCP_RING_INT = 0x2
93 };
94
95 /* Provide DMA memory definitions the driver uses per port instance. */
96 struct lpfc_dmabuf {
97 struct list_head list;
98 void *virt; /* virtual address ptr */
99 dma_addr_t phys; /* mapped address */
100 uint32_t buffer_tag; /* used for tagged queue ring */
101 };
102
103 struct lpfc_dma_pool {
104 struct lpfc_dmabuf *elements;
105 uint32_t max_count;
106 uint32_t current_count;
107 };
108
109 struct hbq_dmabuf {
110 struct lpfc_dmabuf hbuf;
111 struct lpfc_dmabuf dbuf;
112 uint32_t size;
113 uint32_t tag;
114 struct lpfc_cq_event cq_event;
115 unsigned long time_stamp;
116 };
117
118 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
119 #define MEM_PRI 0x100
120
121
122 /****************************************************************************/
123 /* Device VPD save area */
124 /****************************************************************************/
125 typedef struct lpfc_vpd {
126 uint32_t status; /* vpd status value */
127 uint32_t length; /* number of bytes actually returned */
128 struct {
129 uint32_t rsvd1; /* Revision numbers */
130 uint32_t biuRev;
131 uint32_t smRev;
132 uint32_t smFwRev;
133 uint32_t endecRev;
134 uint16_t rBit;
135 uint8_t fcphHigh;
136 uint8_t fcphLow;
137 uint8_t feaLevelHigh;
138 uint8_t feaLevelLow;
139 uint32_t postKernRev;
140 uint32_t opFwRev;
141 uint8_t opFwName[16];
142 uint32_t sli1FwRev;
143 uint8_t sli1FwName[16];
144 uint32_t sli2FwRev;
145 uint8_t sli2FwName[16];
146 } rev;
147 struct {
148 #ifdef __BIG_ENDIAN_BITFIELD
149 uint32_t rsvd3 :19; /* Reserved */
150 uint32_t cdss : 1; /* Configure Data Security SLI */
151 uint32_t rsvd2 : 3; /* Reserved */
152 uint32_t cbg : 1; /* Configure BlockGuard */
153 uint32_t cmv : 1; /* Configure Max VPIs */
154 uint32_t ccrp : 1; /* Config Command Ring Polling */
155 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
156 uint32_t chbs : 1; /* Cofigure Host Backing store */
157 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
158 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
159 uint32_t cmx : 1; /* Configure Max XRIs */
160 uint32_t cmr : 1; /* Configure Max RPIs */
161 #else /* __LITTLE_ENDIAN */
162 uint32_t cmr : 1; /* Configure Max RPIs */
163 uint32_t cmx : 1; /* Configure Max XRIs */
164 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
165 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
166 uint32_t chbs : 1; /* Cofigure Host Backing store */
167 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
168 uint32_t ccrp : 1; /* Config Command Ring Polling */
169 uint32_t cmv : 1; /* Configure Max VPIs */
170 uint32_t cbg : 1; /* Configure BlockGuard */
171 uint32_t rsvd2 : 3; /* Reserved */
172 uint32_t cdss : 1; /* Configure Data Security SLI */
173 uint32_t rsvd3 :19; /* Reserved */
174 #endif
175 } sli3Feat;
176 } lpfc_vpd_t;
177
178 struct lpfc_scsi_buf;
179
180
181 /*
182 * lpfc stat counters
183 */
184 struct lpfc_stats {
185 /* Statistics for ELS commands */
186 uint32_t elsLogiCol;
187 uint32_t elsRetryExceeded;
188 uint32_t elsXmitRetry;
189 uint32_t elsDelayRetry;
190 uint32_t elsRcvDrop;
191 uint32_t elsRcvFrame;
192 uint32_t elsRcvRSCN;
193 uint32_t elsRcvRNID;
194 uint32_t elsRcvFARP;
195 uint32_t elsRcvFARPR;
196 uint32_t elsRcvFLOGI;
197 uint32_t elsRcvPLOGI;
198 uint32_t elsRcvADISC;
199 uint32_t elsRcvPDISC;
200 uint32_t elsRcvFAN;
201 uint32_t elsRcvLOGO;
202 uint32_t elsRcvPRLO;
203 uint32_t elsRcvPRLI;
204 uint32_t elsRcvLIRR;
205 uint32_t elsRcvRLS;
206 uint32_t elsRcvRPS;
207 uint32_t elsRcvRPL;
208 uint32_t elsRcvRRQ;
209 uint32_t elsRcvRTV;
210 uint32_t elsRcvECHO;
211 uint32_t elsXmitFLOGI;
212 uint32_t elsXmitFDISC;
213 uint32_t elsXmitPLOGI;
214 uint32_t elsXmitPRLI;
215 uint32_t elsXmitADISC;
216 uint32_t elsXmitLOGO;
217 uint32_t elsXmitSCR;
218 uint32_t elsXmitRNID;
219 uint32_t elsXmitFARP;
220 uint32_t elsXmitFARPR;
221 uint32_t elsXmitACC;
222 uint32_t elsXmitLSRJT;
223
224 uint32_t frameRcvBcast;
225 uint32_t frameRcvMulti;
226 uint32_t strayXmitCmpl;
227 uint32_t frameXmitDelay;
228 uint32_t xriCmdCmpl;
229 uint32_t xriStatErr;
230 uint32_t LinkUp;
231 uint32_t LinkDown;
232 uint32_t LinkMultiEvent;
233 uint32_t NoRcvBuf;
234 uint32_t fcpCmd;
235 uint32_t fcpCmpl;
236 uint32_t fcpRspErr;
237 uint32_t fcpRemoteStop;
238 uint32_t fcpPortRjt;
239 uint32_t fcpPortBusy;
240 uint32_t fcpError;
241 uint32_t fcpLocalErr;
242 };
243
244 enum sysfs_mbox_state {
245 SMBOX_IDLE,
246 SMBOX_WRITING,
247 SMBOX_READING
248 };
249
250 struct lpfc_sysfs_mbox {
251 enum sysfs_mbox_state state;
252 size_t offset;
253 struct lpfcMboxq * mbox;
254 };
255
256 struct lpfc_hba;
257
258
259 enum discovery_state {
260 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
261 LPFC_VPORT_FAILED = 1, /* vport has failed */
262 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
263 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
264 LPFC_FDISC = 8, /* FDISC sent for vport */
265 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
266 * configured */
267 LPFC_NS_REG = 10, /* Register with NameServer */
268 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
269 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
270 * device authentication / discovery */
271 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
272 LPFC_VPORT_READY = 32,
273 };
274
275 enum hba_state {
276 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
277 LPFC_WARM_START = 1, /* HBA state after selective reset */
278 LPFC_INIT_START = 2, /* Initial state after board reset */
279 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
280 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
281 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
282 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
283 * CLEAR_LA */
284 LPFC_HBA_READY = 32,
285 LPFC_HBA_ERROR = -1
286 };
287
288 struct lpfc_vport {
289 struct lpfc_hba *phba;
290 struct list_head listentry;
291 uint8_t port_type;
292 #define LPFC_PHYSICAL_PORT 1
293 #define LPFC_NPIV_PORT 2
294 #define LPFC_FABRIC_PORT 3
295 enum discovery_state port_state;
296
297 uint16_t vpi;
298 uint16_t vfi;
299 uint8_t vpi_state;
300 #define LPFC_VPI_REGISTERED 0x1
301
302 uint32_t fc_flag; /* FC flags */
303 /* Several of these flags are HBA centric and should be moved to
304 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
305 */
306 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
307 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
308 #define FC_DISC_TMO 0x4 /* Discovery timer running */
309 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
310 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
311 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
312 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
313 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
314 #define FC_FABRIC 0x100 /* We are fabric attached */
315 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */
316 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
317 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/
318 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
319 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
320 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
321 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
322 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
323 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
324 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
325 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */
326 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */
327 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */
328 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */
329
330 uint32_t ct_flags;
331 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
332 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
333 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
334 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
335 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
336
337 struct list_head fc_nodes;
338
339 /* Keep counters for the number of entries in each list. */
340 uint16_t fc_plogi_cnt;
341 uint16_t fc_adisc_cnt;
342 uint16_t fc_reglogin_cnt;
343 uint16_t fc_prli_cnt;
344 uint16_t fc_unmap_cnt;
345 uint16_t fc_map_cnt;
346 uint16_t fc_npr_cnt;
347 uint16_t fc_unused_cnt;
348 struct serv_parm fc_sparam; /* buffer for our service parameters */
349
350 uint32_t fc_myDID; /* fibre channel S_ID */
351 uint32_t fc_prevDID; /* previous fibre channel S_ID */
352 struct lpfc_name fabric_portname;
353 struct lpfc_name fabric_nodename;
354
355 int32_t stopped; /* HBA has not been restarted since last ERATT */
356 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
357
358 uint32_t num_disc_nodes; /*in addition to hba_state */
359
360 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
361 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
362 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
363 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
364 struct lpfc_name fc_nodename; /* fc nodename */
365 struct lpfc_name fc_portname; /* fc portname */
366
367 struct lpfc_work_evt disc_timeout_evt;
368
369 struct timer_list fc_disctmo; /* Discovery rescue timer */
370 uint8_t fc_ns_retry; /* retries for fabric nameserver */
371 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
372
373 spinlock_t work_port_lock;
374 uint32_t work_port_events; /* Timeout to be handled */
375 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
376 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
377 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
378 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
379
380 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
381 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
382 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
383 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
384 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
385 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
386
387 struct timer_list fc_fdmitmo;
388 struct timer_list els_tmofunc;
389 struct timer_list delayed_disc_tmo;
390
391 int unreg_vpi_cmpl;
392
393 uint8_t load_flag;
394 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
395 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
396 /* Vport Config Parameters */
397 uint32_t cfg_scan_down;
398 uint32_t cfg_lun_queue_depth;
399 uint32_t cfg_nodev_tmo;
400 uint32_t cfg_devloss_tmo;
401 uint32_t cfg_restrict_login;
402 uint32_t cfg_peer_port_login;
403 uint32_t cfg_fcp_class;
404 uint32_t cfg_use_adisc;
405 uint32_t cfg_fdmi_on;
406 uint32_t cfg_discovery_threads;
407 uint32_t cfg_log_verbose;
408 uint32_t cfg_max_luns;
409 uint32_t cfg_enable_da_id;
410 uint32_t cfg_max_scsicmpl_time;
411 uint32_t cfg_tgt_queue_depth;
412
413 uint32_t dev_loss_tmo_changed;
414
415 struct fc_vport *fc_vport;
416
417 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
418 struct dentry *debug_disc_trc;
419 struct dentry *debug_nodelist;
420 struct dentry *vport_debugfs_root;
421 struct lpfc_debugfs_trc *disc_trc;
422 atomic_t disc_trc_cnt;
423 #endif
424 uint8_t stat_data_enabled;
425 uint8_t stat_data_blocked;
426 struct list_head rcv_buffer_list;
427 unsigned long rcv_buffer_time_stamp;
428 uint32_t vport_flag;
429 #define STATIC_VPORT 1
430 };
431
432 struct hbq_s {
433 uint16_t entry_count; /* Current number of HBQ slots */
434 uint16_t buffer_count; /* Current number of buffers posted */
435 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
436 uint32_t hbqPutIdx; /* HBQ slot to use */
437 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
438 void *hbq_virt; /* Virtual ptr to this hbq */
439 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
440 /* Callback for HBQ buffer allocation */
441 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
442 /* Callback for HBQ buffer free */
443 void (*hbq_free_buffer) (struct lpfc_hba *,
444 struct hbq_dmabuf *);
445 };
446
447 #define LPFC_MAX_HBQS 4
448 /* this matches the position in the lpfc_hbq_defs array */
449 #define LPFC_ELS_HBQ 0
450 #define LPFC_EXTRA_HBQ 1
451
452 enum hba_temp_state {
453 HBA_NORMAL_TEMP,
454 HBA_OVER_TEMP
455 };
456
457 enum intr_type_t {
458 NONE = 0,
459 INTx,
460 MSI,
461 MSIX,
462 };
463
464 struct unsol_rcv_ct_ctx {
465 uint32_t ctxt_id;
466 uint32_t SID;
467 uint32_t oxid;
468 uint32_t flags;
469 #define UNSOL_VALID 0x00000001
470 };
471
472 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/
473 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */
474 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */
475 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */
476 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */
477 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */
478 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */
479 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G
480 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \
481 (1 << LPFC_USER_LINK_SPEED_10G) | \
482 (1 << LPFC_USER_LINK_SPEED_8G) | \
483 (1 << LPFC_USER_LINK_SPEED_4G) | \
484 (1 << LPFC_USER_LINK_SPEED_2G) | \
485 (1 << LPFC_USER_LINK_SPEED_1G) | \
486 (1 << LPFC_USER_LINK_SPEED_AUTO))
487 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16"
488
489 struct lpfc_hba {
490 /* SCSI interface function jump table entries */
491 int (*lpfc_new_scsi_buf)
492 (struct lpfc_vport *, int);
493 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
494 (struct lpfc_hba *, struct lpfc_nodelist *);
495 int (*lpfc_scsi_prep_dma_buf)
496 (struct lpfc_hba *, struct lpfc_scsi_buf *);
497 void (*lpfc_scsi_unprep_dma_buf)
498 (struct lpfc_hba *, struct lpfc_scsi_buf *);
499 void (*lpfc_release_scsi_buf)
500 (struct lpfc_hba *, struct lpfc_scsi_buf *);
501 void (*lpfc_rampdown_queue_depth)
502 (struct lpfc_hba *);
503 void (*lpfc_scsi_prep_cmnd)
504 (struct lpfc_vport *, struct lpfc_scsi_buf *,
505 struct lpfc_nodelist *);
506 /* IOCB interface function jump table entries */
507 int (*__lpfc_sli_issue_iocb)
508 (struct lpfc_hba *, uint32_t,
509 struct lpfc_iocbq *, uint32_t);
510 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
511 struct lpfc_iocbq *);
512 int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
513
514
515 IOCB_t * (*lpfc_get_iocb_from_iocbq)
516 (struct lpfc_iocbq *);
517 void (*lpfc_scsi_cmd_iocb_cmpl)
518 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
519
520 /* MBOX interface function jump table entries */
521 int (*lpfc_sli_issue_mbox)
522 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
523 /* Slow-path IOCB process function jump table entries */
524 void (*lpfc_sli_handle_slow_ring_event)
525 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
526 uint32_t mask);
527 /* INIT device interface function jump table entries */
528 int (*lpfc_sli_hbq_to_firmware)
529 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
530 int (*lpfc_sli_brdrestart)
531 (struct lpfc_hba *);
532 int (*lpfc_sli_brdready)
533 (struct lpfc_hba *, uint32_t);
534 void (*lpfc_handle_eratt)
535 (struct lpfc_hba *);
536 void (*lpfc_stop_port)
537 (struct lpfc_hba *);
538 int (*lpfc_hba_init_link)
539 (struct lpfc_hba *, uint32_t);
540 int (*lpfc_hba_down_link)
541 (struct lpfc_hba *, uint32_t);
542 int (*lpfc_selective_reset)
543 (struct lpfc_hba *);
544
545 /* SLI4 specific HBA data structure */
546 struct lpfc_sli4_hba sli4_hba;
547
548 struct lpfc_sli sli;
549 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
550 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */
551 uint32_t sli3_options; /* Mask of enabled SLI3 options */
552 #define LPFC_SLI3_HBQ_ENABLED 0x01
553 #define LPFC_SLI3_NPIV_ENABLED 0x02
554 #define LPFC_SLI3_VPORT_TEARDOWN 0x04
555 #define LPFC_SLI3_CRP_ENABLED 0x08
556 #define LPFC_SLI3_BG_ENABLED 0x20
557 #define LPFC_SLI3_DSS_ENABLED 0x40
558 #define LPFC_SLI4_PERFH_ENABLED 0x80
559 #define LPFC_SLI4_PHWQ_ENABLED 0x100
560 uint32_t iocb_cmd_size;
561 uint32_t iocb_rsp_size;
562
563 enum hba_state link_state;
564 uint32_t link_flag; /* link state flags */
565 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
566 /* This flag is set while issuing */
567 /* INIT_LINK mailbox command */
568 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
569 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
570
571 uint32_t hba_flag; /* hba generic flags */
572 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
573 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */
574 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */
575 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/
576 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
577 #define FCP_XRI_ABORT_EVENT 0x20
578 #define ELS_XRI_ABORT_EVENT 0x40
579 #define ASYNC_EVENT 0x80
580 #define LINK_DISABLED 0x100 /* Link disabled by user */
581 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */
582 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */
583 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */
584 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */
585 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */
586 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */
587 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
588 struct lpfc_dmabuf slim2p;
589
590 MAILBOX_t *mbox;
591 uint32_t *mbox_ext;
592 uint32_t ha_copy;
593 struct _PCB *pcb;
594 struct _IOCB *IOCBs;
595
596 struct lpfc_dmabuf hbqslimp;
597
598 uint16_t pci_cfg_value;
599
600 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
601
602 uint32_t fc_eventTag; /* event tag for link attention */
603 uint32_t link_events;
604
605 /* These fields used to be binfo */
606 uint32_t fc_pref_DID; /* preferred D_ID */
607 uint8_t fc_pref_ALPA; /* preferred AL_PA */
608 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
609 uint32_t fc_edtov; /* E_D_TOV timer value */
610 uint32_t fc_arbtov; /* ARB_TOV timer value */
611 uint32_t fc_ratov; /* R_A_TOV timer value */
612 uint32_t fc_rttov; /* R_T_TOV timer value */
613 uint32_t fc_altov; /* AL_TOV timer value */
614 uint32_t fc_crtov; /* C_R_TOV timer value */
615 uint32_t fc_citov; /* C_I_TOV timer value */
616
617 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
618 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
619
620 uint32_t lmt;
621
622 uint32_t fc_topology; /* link topology, from LINK INIT */
623
624 struct lpfc_stats fc_stat;
625
626 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
627 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
628
629 uint8_t wwnn[8];
630 uint8_t wwpn[8];
631 uint32_t RandomData[7];
632
633 /* HBA Config Parameters */
634 uint32_t cfg_ack0;
635 uint32_t cfg_enable_npiv;
636 uint32_t cfg_enable_rrq;
637 uint32_t cfg_topology;
638 uint32_t cfg_link_speed;
639 uint32_t cfg_cr_delay;
640 uint32_t cfg_cr_count;
641 uint32_t cfg_multi_ring_support;
642 uint32_t cfg_multi_ring_rctl;
643 uint32_t cfg_multi_ring_type;
644 uint32_t cfg_poll;
645 uint32_t cfg_poll_tmo;
646 uint32_t cfg_use_msi;
647 uint32_t cfg_fcp_imax;
648 uint32_t cfg_fcp_wq_count;
649 uint32_t cfg_fcp_eq_count;
650 uint32_t cfg_sg_seg_cnt;
651 uint32_t cfg_prot_sg_seg_cnt;
652 uint32_t cfg_sg_dma_buf_size;
653 uint64_t cfg_soft_wwnn;
654 uint64_t cfg_soft_wwpn;
655 uint32_t cfg_hba_queue_depth;
656 uint32_t cfg_enable_hba_reset;
657 uint32_t cfg_enable_hba_heartbeat;
658 uint32_t cfg_enable_bg;
659 uint32_t cfg_hostmem_hgp;
660 uint32_t cfg_log_verbose;
661 uint32_t cfg_aer_support;
662 uint32_t cfg_iocb_cnt;
663 uint32_t cfg_suppress_link_up;
664 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
665 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
666 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
667 uint32_t cfg_enable_dss;
668 lpfc_vpd_t vpd; /* vital product data */
669
670 struct pci_dev *pcidev;
671 struct list_head work_list;
672 uint32_t work_ha; /* Host Attention Bits for WT */
673 uint32_t work_ha_mask; /* HA Bits owned by WT */
674 uint32_t work_hs; /* HS stored in case of ERRAT */
675 uint32_t work_status[2]; /* Extra status from SLIM */
676
677 wait_queue_head_t work_waitq;
678 struct task_struct *worker_thread;
679 unsigned long data_flags;
680
681 uint32_t hbq_in_use; /* HBQs in use flag */
682 struct list_head rb_pend_list; /* Received buffers to be processed */
683 uint32_t hbq_count; /* Count of configured HBQs */
684 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
685
686 uint32_t fcp_qidx; /* next work queue to post work to */
687
688 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
689 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */
690 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
691 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
692 PCI BAR0 */
693 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
694 PCI BAR2 */
695
696 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
697 void __iomem *HAregaddr; /* virtual address for host attn reg */
698 void __iomem *CAregaddr; /* virtual address for chip attn reg */
699 void __iomem *HSregaddr; /* virtual address for host status
700 reg */
701 void __iomem *HCregaddr; /* virtual address for host ctl reg */
702
703 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
704 struct lpfc_pgp *port_gp;
705 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
706 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
707
708 int brd_no; /* FC board number */
709
710 char SerialNumber[32]; /* adapter Serial Number */
711 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
712 char ModelDesc[256]; /* Model Description */
713 char ModelName[80]; /* Model Name */
714 char ProgramType[256]; /* Program Type */
715 char Port[20]; /* Port No */
716 uint8_t vpd_flag; /* VPD data flag */
717
718 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
719 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
720 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
721 #define VPD_PORT 0x8 /* valid vpd port data */
722 #define VPD_MASK 0xf /* mask for any vpd data */
723
724 uint8_t soft_wwn_enable;
725
726 struct timer_list fcp_poll_timer;
727 struct timer_list eratt_poll;
728
729 /*
730 * stat counters
731 */
732 uint64_t fc4InputRequests;
733 uint64_t fc4OutputRequests;
734 uint64_t fc4ControlRequests;
735 uint64_t bg_guard_err_cnt;
736 uint64_t bg_apptag_err_cnt;
737 uint64_t bg_reftag_err_cnt;
738
739 struct lpfc_sysfs_mbox sysfs_mbox;
740
741 /* fastpath list. */
742 spinlock_t scsi_buf_list_lock;
743 struct list_head lpfc_scsi_buf_list;
744 uint32_t total_scsi_bufs;
745 struct list_head lpfc_iocb_list;
746 uint32_t total_iocbq_bufs;
747 struct list_head active_rrq_list;
748 spinlock_t hbalock;
749
750 /* pci_mem_pools */
751 struct pci_pool *lpfc_scsi_dma_buf_pool;
752 struct pci_pool *lpfc_mbuf_pool;
753 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
754 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
755 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
756 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
757
758 mempool_t *mbox_mem_pool;
759 mempool_t *nlp_mem_pool;
760 mempool_t *rrq_pool;
761
762 struct fc_host_statistics link_stats;
763 enum intr_type_t intr_type;
764 uint32_t intr_mode;
765 #define LPFC_INTR_ERROR 0xFFFFFFFF
766 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
767
768 struct list_head port_list;
769 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
770 uint16_t max_vpi; /* Maximum virtual nports */
771 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
772 uint16_t max_vports; /*
773 * For IOV HBAs max_vpi can change
774 * after a reset. max_vports is max
775 * number of vports present. This can
776 * be greater than max_vpi.
777 */
778 uint16_t vpi_base;
779 uint16_t vfi_base;
780 unsigned long *vpi_bmask; /* vpi allocation table */
781
782 /* Data structure used by fabric iocb scheduler */
783 struct list_head fabric_iocb_list;
784 atomic_t fabric_iocb_count;
785 struct timer_list fabric_block_timer;
786 unsigned long bit_flags;
787 #define FABRIC_COMANDS_BLOCKED 0
788 atomic_t num_rsrc_err;
789 atomic_t num_cmd_success;
790 unsigned long last_rsrc_error_time;
791 unsigned long last_ramp_down_time;
792 unsigned long last_ramp_up_time;
793 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
794 struct dentry *hba_debugfs_root;
795 atomic_t debugfs_vport_count;
796 struct dentry *debug_hbqinfo;
797 struct dentry *debug_dumpHostSlim;
798 struct dentry *debug_dumpHBASlim;
799 struct dentry *debug_dumpData; /* BlockGuard BPL*/
800 struct dentry *debug_dumpDif; /* BlockGuard BPL*/
801 struct dentry *debug_slow_ring_trc;
802 struct lpfc_debugfs_trc *slow_ring_trc;
803 atomic_t slow_ring_trc_cnt;
804 /* iDiag debugfs sub-directory */
805 struct dentry *idiag_root;
806 struct dentry *idiag_pci_cfg;
807 struct dentry *idiag_que_info;
808 #endif
809
810 /* Used for deferred freeing of ELS data buffers */
811 struct list_head elsbuf;
812 int elsbuf_cnt;
813 int elsbuf_prev_cnt;
814
815 uint8_t temp_sensor_support;
816 /* Fields used for heart beat. */
817 unsigned long last_completion_time;
818 unsigned long skipped_hb;
819 struct timer_list hb_tmofunc;
820 uint8_t hb_outstanding;
821 struct timer_list rrq_tmr;
822 enum hba_temp_state over_temp_state;
823 /* ndlp reference management */
824 spinlock_t ndlp_lock;
825 /*
826 * Following bit will be set for all buffer tags which are not
827 * associated with any HBQ.
828 */
829 #define QUE_BUFTAG_BIT (1<<31)
830 uint32_t buffer_tag_count;
831 int wait_4_mlo_maint_flg;
832 wait_queue_head_t wait_4_mlo_m_q;
833 /* data structure used for latency data collection */
834 #define LPFC_NO_BUCKET 0
835 #define LPFC_LINEAR_BUCKET 1
836 #define LPFC_POWER2_BUCKET 2
837 uint8_t bucket_type;
838 uint32_t bucket_base;
839 uint32_t bucket_step;
840
841 /* Maximum number of events that can be outstanding at any time*/
842 #define LPFC_MAX_EVT_COUNT 512
843 atomic_t fast_event_count;
844 uint32_t fcoe_eventtag;
845 uint32_t fcoe_eventtag_at_fcf_scan;
846 struct lpfc_fcf fcf;
847 uint8_t fc_map[3];
848 uint8_t valid_vlan;
849 uint16_t vlan_id;
850 struct list_head fcf_conn_rec_list;
851
852 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
853 struct list_head ct_ev_waiters;
854 struct unsol_rcv_ct_ctx ct_ctx[64];
855 uint32_t ctx_idx;
856
857 uint8_t menlo_flag; /* menlo generic flags */
858 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */
859 uint32_t iocb_cnt;
860 uint32_t iocb_max;
861 atomic_t sdev_cnt;
862 uint8_t fips_spec_rev;
863 uint8_t fips_level;
864 };
865
866 static inline struct Scsi_Host *
lpfc_shost_from_vport(struct lpfc_vport * vport)867 lpfc_shost_from_vport(struct lpfc_vport *vport)
868 {
869 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
870 }
871
872 static inline void
lpfc_set_loopback_flag(struct lpfc_hba * phba)873 lpfc_set_loopback_flag(struct lpfc_hba *phba)
874 {
875 if (phba->cfg_topology == FLAGS_LOCAL_LB)
876 phba->link_flag |= LS_LOOPBACK_MODE;
877 else
878 phba->link_flag &= ~LS_LOOPBACK_MODE;
879 }
880
881 static inline int
lpfc_is_link_up(struct lpfc_hba * phba)882 lpfc_is_link_up(struct lpfc_hba *phba)
883 {
884 return phba->link_state == LPFC_LINK_UP ||
885 phba->link_state == LPFC_CLEAR_LA ||
886 phba->link_state == LPFC_HBA_READY;
887 }
888
889 static inline void
lpfc_worker_wake_up(struct lpfc_hba * phba)890 lpfc_worker_wake_up(struct lpfc_hba *phba)
891 {
892 /* Set the lpfc data pending flag */
893 set_bit(LPFC_DATA_READY, &phba->data_flags);
894
895 /* Wake up worker thread */
896 wake_up(&phba->work_waitq);
897 return;
898 }
899
900 static inline int
lpfc_readl(void __iomem * addr,uint32_t * data)901 lpfc_readl(void __iomem *addr, uint32_t *data)
902 {
903 uint32_t temp;
904 temp = readl(addr);
905 if (temp == 0xffffffff)
906 return -EIO;
907 *data = temp;
908 return 0;
909 }
910
911 static inline int
lpfc_sli_read_hs(struct lpfc_hba * phba)912 lpfc_sli_read_hs(struct lpfc_hba *phba)
913 {
914 /*
915 * There was a link/board error. Read the status register to retrieve
916 * the error event and process it.
917 */
918 phba->sli.slistat.err_attn_event++;
919
920 /* Save status info and check for unplug error */
921 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
922 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
923 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
924 return -EIO;
925 }
926
927 /* Clear chip Host Attention error bit */
928 writel(HA_ERATT, phba->HAregaddr);
929 readl(phba->HAregaddr); /* flush */
930 phba->pport->stopped = 1;
931
932 return 0;
933 }
934