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initial commit with v3.6.7
[linux-3.6.7-moxart.git] / drivers / scsi / lpfc / lpfc.h
bloba65c05a8d4885dbd5f96821c73fcee6e13d43917
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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
24 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_SCSI_LPFC_DEBUG_FS)
25 #define CONFIG_SCSI_LPFC_DEBUG_FS
26 #endif
27
28 struct lpfc_sli2_slim;
29
30 #define LPFC_PCI_DEV_LP 0x1
31 #define LPFC_PCI_DEV_OC 0x2
32
33 #define LPFC_SLI_REV2 2
34 #define LPFC_SLI_REV3 3
35 #define LPFC_SLI_REV4 4
36
37 #define LPFC_MAX_TARGET 4096 /* max number of targets supported */
38 #define LPFC_MAX_DISC_THREADS 64 /* max outstanding discovery els
39 requests */
40 #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact
41 the NameServer before giving up. */
42 #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */
43 #define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */
44 #define LPFC_DEFAULT_MENLO_SG_SEG_CNT 128 /* sg element count per scsi
45 cmnd for menlo needs nearly twice as for firmware
46 downloads using bsg */
47 #define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */
48 #define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */
49 #define LPFC_MAX_SGE_SIZE 0x80000000 /* Maximum data allowed in a SGE */
50 #define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/
51 #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
52 #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
53 #define LPFC_VNAME_LEN 100 /* vport symbolic name length */
54 #define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
55 queue depth change in millisecs */
56 #define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
57 #define LPFC_MIN_TGT_QDEPTH 10
58 #define LPFC_MAX_TGT_QDEPTH 0xFFFF
59
60 #define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
61 collection. */
62 /*
63 * Following time intervals are used of adjusting SCSI device
64 * queue depths when there are driver resource error or Firmware
65 * resource error.
66 */
67 #define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
68 #define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
69
70 /* Number of exchanges reserved for discovery to complete */
71 #define LPFC_DISC_IOCB_BUFF_COUNT 20
72
73 #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
74 #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
75
76 /* Error Attention event polling interval */
77 #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
78
79 /* Define macros for 64 bit support */
80 #define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
81 #define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
82 #define getPaddr(high, low) ((dma_addr_t)( \
83 (( (u64)(high)<<16 ) << 16)|( (u64)(low))))
84 /* Provide maximum configuration definitions. */
85 #define LPFC_DRVR_TIMEOUT 16 /* driver iocb timeout value in sec */
86 #define FC_MAX_ADPTMSG 64
87
88 #define MAX_HBAEVT 32
89
90 /* Number of MSI-X vectors the driver uses */
91 #define LPFC_MSIX_VECTORS 2
92
93 /* lpfc wait event data ready flag */
94 #define LPFC_DATA_READY (1<<0)
95
96 /* queue dump line buffer size */
97 #define LPFC_LBUF_SZ 128
98
99 /* mailbox system shutdown options */
100 #define LPFC_MBX_NO_WAIT 0
101 #define LPFC_MBX_WAIT 1
102
103 enum lpfc_polling_flags {
104 ENABLE_FCP_RING_POLLING = 0x1,
105 DISABLE_FCP_RING_INT = 0x2
106 };
107
108 /* Provide DMA memory definitions the driver uses per port instance. */
109 struct lpfc_dmabuf {
110 struct list_head list;
111 void *virt; /* virtual address ptr */
112 dma_addr_t phys; /* mapped address */
113 uint32_t buffer_tag; /* used for tagged queue ring */
114 };
115
116 struct lpfc_dma_pool {
117 struct lpfc_dmabuf *elements;
118 uint32_t max_count;
119 uint32_t current_count;
120 };
121
122 struct hbq_dmabuf {
123 struct lpfc_dmabuf hbuf;
124 struct lpfc_dmabuf dbuf;
125 uint32_t size;
126 uint32_t tag;
127 struct lpfc_cq_event cq_event;
128 unsigned long time_stamp;
129 };
130
131 /* Priority bit. Set value to exceed low water mark in lpfc_mem. */
132 #define MEM_PRI 0x100
133
134
135 /****************************************************************************/
136 /* Device VPD save area */
137 /****************************************************************************/
138 typedef struct lpfc_vpd {
139 uint32_t status; /* vpd status value */
140 uint32_t length; /* number of bytes actually returned */
141 struct {
142 uint32_t rsvd1; /* Revision numbers */
143 uint32_t biuRev;
144 uint32_t smRev;
145 uint32_t smFwRev;
146 uint32_t endecRev;
147 uint16_t rBit;
148 uint8_t fcphHigh;
149 uint8_t fcphLow;
150 uint8_t feaLevelHigh;
151 uint8_t feaLevelLow;
152 uint32_t postKernRev;
153 uint32_t opFwRev;
154 uint8_t opFwName[16];
155 uint32_t sli1FwRev;
156 uint8_t sli1FwName[16];
157 uint32_t sli2FwRev;
158 uint8_t sli2FwName[16];
159 } rev;
160 struct {
161 #ifdef __BIG_ENDIAN_BITFIELD
162 uint32_t rsvd3 :19; /* Reserved */
163 uint32_t cdss : 1; /* Configure Data Security SLI */
164 uint32_t rsvd2 : 3; /* Reserved */
165 uint32_t cbg : 1; /* Configure BlockGuard */
166 uint32_t cmv : 1; /* Configure Max VPIs */
167 uint32_t ccrp : 1; /* Config Command Ring Polling */
168 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
169 uint32_t chbs : 1; /* Cofigure Host Backing store */
170 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
171 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
172 uint32_t cmx : 1; /* Configure Max XRIs */
173 uint32_t cmr : 1; /* Configure Max RPIs */
174 #else /* __LITTLE_ENDIAN */
175 uint32_t cmr : 1; /* Configure Max RPIs */
176 uint32_t cmx : 1; /* Configure Max XRIs */
177 uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
178 uint32_t cinb : 1; /* Enable Interrupt Notification Block */
179 uint32_t chbs : 1; /* Cofigure Host Backing store */
180 uint32_t csah : 1; /* Configure Synchronous Abort Handling */
181 uint32_t ccrp : 1; /* Config Command Ring Polling */
182 uint32_t cmv : 1; /* Configure Max VPIs */
183 uint32_t cbg : 1; /* Configure BlockGuard */
184 uint32_t rsvd2 : 3; /* Reserved */
185 uint32_t cdss : 1; /* Configure Data Security SLI */
186 uint32_t rsvd3 :19; /* Reserved */
187 #endif
188 } sli3Feat;
189 } lpfc_vpd_t;
190
191 struct lpfc_scsi_buf;
192
193
194 /*
195 * lpfc stat counters
196 */
197 struct lpfc_stats {
198 /* Statistics for ELS commands */
199 uint32_t elsLogiCol;
200 uint32_t elsRetryExceeded;
201 uint32_t elsXmitRetry;
202 uint32_t elsDelayRetry;
203 uint32_t elsRcvDrop;
204 uint32_t elsRcvFrame;
205 uint32_t elsRcvRSCN;
206 uint32_t elsRcvRNID;
207 uint32_t elsRcvFARP;
208 uint32_t elsRcvFARPR;
209 uint32_t elsRcvFLOGI;
210 uint32_t elsRcvPLOGI;
211 uint32_t elsRcvADISC;
212 uint32_t elsRcvPDISC;
213 uint32_t elsRcvFAN;
214 uint32_t elsRcvLOGO;
215 uint32_t elsRcvPRLO;
216 uint32_t elsRcvPRLI;
217 uint32_t elsRcvLIRR;
218 uint32_t elsRcvRLS;
219 uint32_t elsRcvRPS;
220 uint32_t elsRcvRPL;
221 uint32_t elsRcvRRQ;
222 uint32_t elsRcvRTV;
223 uint32_t elsRcvECHO;
224 uint32_t elsXmitFLOGI;
225 uint32_t elsXmitFDISC;
226 uint32_t elsXmitPLOGI;
227 uint32_t elsXmitPRLI;
228 uint32_t elsXmitADISC;
229 uint32_t elsXmitLOGO;
230 uint32_t elsXmitSCR;
231 uint32_t elsXmitRNID;
232 uint32_t elsXmitFARP;
233 uint32_t elsXmitFARPR;
234 uint32_t elsXmitACC;
235 uint32_t elsXmitLSRJT;
236
237 uint32_t frameRcvBcast;
238 uint32_t frameRcvMulti;
239 uint32_t strayXmitCmpl;
240 uint32_t frameXmitDelay;
241 uint32_t xriCmdCmpl;
242 uint32_t xriStatErr;
243 uint32_t LinkUp;
244 uint32_t LinkDown;
245 uint32_t LinkMultiEvent;
246 uint32_t NoRcvBuf;
247 uint32_t fcpCmd;
248 uint32_t fcpCmpl;
249 uint32_t fcpRspErr;
250 uint32_t fcpRemoteStop;
251 uint32_t fcpPortRjt;
252 uint32_t fcpPortBusy;
253 uint32_t fcpError;
254 uint32_t fcpLocalErr;
255 };
256
257 struct lpfc_hba;
258
259
260 enum discovery_state {
261 LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
262 LPFC_VPORT_FAILED = 1, /* vport has failed */
263 LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
264 LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
265 LPFC_FDISC = 8, /* FDISC sent for vport */
266 LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
267 * configured */
268 LPFC_NS_REG = 10, /* Register with NameServer */
269 LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
270 LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
271 * device authentication / discovery */
272 LPFC_DISC_AUTH = 13, /* Processing ADISC list */
273 LPFC_VPORT_READY = 32,
274 };
275
276 enum hba_state {
277 LPFC_LINK_UNKNOWN = 0, /* HBA state is unknown */
278 LPFC_WARM_START = 1, /* HBA state after selective reset */
279 LPFC_INIT_START = 2, /* Initial state after board reset */
280 LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
281 LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
282 LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
283 LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
284 * CLEAR_LA */
285 LPFC_HBA_READY = 32,
286 LPFC_HBA_ERROR = -1
287 };
288
289 struct lpfc_vport {
290 struct lpfc_hba *phba;
291 struct list_head listentry;
292 uint8_t port_type;
293 #define LPFC_PHYSICAL_PORT 1
294 #define LPFC_NPIV_PORT 2
295 #define LPFC_FABRIC_PORT 3
296 enum discovery_state port_state;
297
298 uint16_t vpi;
299 uint16_t vfi;
300 uint8_t vpi_state;
301 #define LPFC_VPI_REGISTERED 0x1
302
303 uint32_t fc_flag; /* FC flags */
304 /* Several of these flags are HBA centric and should be moved to
305 * phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
306 */
307 #define FC_PT2PT 0x1 /* pt2pt with no fabric */
308 #define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
309 #define FC_DISC_TMO 0x4 /* Discovery timer running */
310 #define FC_PUBLIC_LOOP 0x8 /* Public loop */
311 #define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
312 #define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
313 #define FC_NLP_MORE 0x40 /* More node to process in node tbl */
314 #define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
315 #define FC_FABRIC 0x100 /* We are fabric attached */
316 #define FC_VPORT_LOGO_RCVD 0x200 /* LOGO received on vport */
317 #define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
318 #define FC_LOGO_RCVD_DID_CHNG 0x800 /* FDISC on phys port detect DID chng*/
319 #define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
320 #define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
321 #define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
322 #define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
323 #define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
324 #define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
325 #define FC_VPORT_NEEDS_INIT_VPI 0x200000 /* Need to INIT_VPI before FDISC */
326 #define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */
327 #define FC_VFI_REGISTERED 0x800000 /* VFI is registered */
328 #define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */
329 #define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */
330
331 uint32_t ct_flags;
332 #define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
333 #define FC_CT_RNN_ID 0x2 /* RNN_ID accepted by switch */
334 #define FC_CT_RSNN_NN 0x4 /* RSNN_NN accepted by switch */
335 #define FC_CT_RSPN_ID 0x8 /* RSPN_ID accepted by switch */
336 #define FC_CT_RFT_ID 0x10 /* RFT_ID accepted by switch */
337
338 struct list_head fc_nodes;
339
340 /* Keep counters for the number of entries in each list. */
341 uint16_t fc_plogi_cnt;
342 uint16_t fc_adisc_cnt;
343 uint16_t fc_reglogin_cnt;
344 uint16_t fc_prli_cnt;
345 uint16_t fc_unmap_cnt;
346 uint16_t fc_map_cnt;
347 uint16_t fc_npr_cnt;
348 uint16_t fc_unused_cnt;
349 struct serv_parm fc_sparam; /* buffer for our service parameters */
350
351 uint32_t fc_myDID; /* fibre channel S_ID */
352 uint32_t fc_prevDID; /* previous fibre channel S_ID */
353 struct lpfc_name fabric_portname;
354 struct lpfc_name fabric_nodename;
355
356 int32_t stopped; /* HBA has not been restarted since last ERATT */
357 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
358
359 uint32_t num_disc_nodes; /*in addition to hba_state */
360
361 uint32_t fc_nlp_cnt; /* outstanding NODELIST requests */
362 uint32_t fc_rscn_id_cnt; /* count of RSCNs payloads in list */
363 uint32_t fc_rscn_flush; /* flag use of fc_rscn_id_list */
364 struct lpfc_dmabuf *fc_rscn_id_list[FC_MAX_HOLD_RSCN];
365 struct lpfc_name fc_nodename; /* fc nodename */
366 struct lpfc_name fc_portname; /* fc portname */
367
368 struct lpfc_work_evt disc_timeout_evt;
369
370 struct timer_list fc_disctmo; /* Discovery rescue timer */
371 uint8_t fc_ns_retry; /* retries for fabric nameserver */
372 uint32_t fc_prli_sent; /* cntr for outstanding PRLIs */
373
374 spinlock_t work_port_lock;
375 uint32_t work_port_events; /* Timeout to be handled */
376 #define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
377 #define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
378 #define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
379 #define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
380
381 #define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
382 #define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
383 #define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
384 #define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
385 #define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
386 #define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
387
388 struct timer_list fc_fdmitmo;
389 struct timer_list els_tmofunc;
390 struct timer_list delayed_disc_tmo;
391
392 int unreg_vpi_cmpl;
393
394 uint8_t load_flag;
395 #define FC_LOADING 0x1 /* HBA in process of loading drvr */
396 #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
397 /* Vport Config Parameters */
398 uint32_t cfg_scan_down;
399 uint32_t cfg_lun_queue_depth;
400 uint32_t cfg_nodev_tmo;
401 uint32_t cfg_devloss_tmo;
402 uint32_t cfg_restrict_login;
403 uint32_t cfg_peer_port_login;
404 uint32_t cfg_fcp_class;
405 uint32_t cfg_use_adisc;
406 uint32_t cfg_fdmi_on;
407 uint32_t cfg_discovery_threads;
408 uint32_t cfg_log_verbose;
409 uint32_t cfg_max_luns;
410 uint32_t cfg_enable_da_id;
411 uint32_t cfg_max_scsicmpl_time;
412 uint32_t cfg_tgt_queue_depth;
413
414 uint32_t dev_loss_tmo_changed;
415
416 struct fc_vport *fc_vport;
417
418 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
419 struct dentry *debug_disc_trc;
420 struct dentry *debug_nodelist;
421 struct dentry *vport_debugfs_root;
422 struct lpfc_debugfs_trc *disc_trc;
423 atomic_t disc_trc_cnt;
424 #endif
425 uint8_t stat_data_enabled;
426 uint8_t stat_data_blocked;
427 struct list_head rcv_buffer_list;
428 unsigned long rcv_buffer_time_stamp;
429 uint32_t vport_flag;
430 #define STATIC_VPORT 1
431 };
432
433 struct hbq_s {
434 uint16_t entry_count; /* Current number of HBQ slots */
435 uint16_t buffer_count; /* Current number of buffers posted */
436 uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
437 uint32_t hbqPutIdx; /* HBQ slot to use */
438 uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
439 void *hbq_virt; /* Virtual ptr to this hbq */
440 struct list_head hbq_buffer_list; /* buffers assigned to this HBQ */
441 /* Callback for HBQ buffer allocation */
442 struct hbq_dmabuf *(*hbq_alloc_buffer) (struct lpfc_hba *);
443 /* Callback for HBQ buffer free */
444 void (*hbq_free_buffer) (struct lpfc_hba *,
445 struct hbq_dmabuf *);
446 };
447
448 #define LPFC_MAX_HBQS 4
449 /* this matches the position in the lpfc_hbq_defs array */
450 #define LPFC_ELS_HBQ 0
451 #define LPFC_EXTRA_HBQ 1
452
453 enum hba_temp_state {
454 HBA_NORMAL_TEMP,
455 HBA_OVER_TEMP
456 };
457
458 enum intr_type_t {
459 NONE = 0,
460 INTx,
461 MSI,
462 MSIX,
463 };
464
465 struct unsol_rcv_ct_ctx {
466 uint32_t ctxt_id;
467 uint32_t SID;
468 uint32_t flags;
469 #define UNSOL_VALID 0x00000001
470 uint16_t oxid;
471 uint16_t rxid;
472 };
473
474 #define LPFC_USER_LINK_SPEED_AUTO 0 /* auto select (default)*/
475 #define LPFC_USER_LINK_SPEED_1G 1 /* 1 Gigabaud */
476 #define LPFC_USER_LINK_SPEED_2G 2 /* 2 Gigabaud */
477 #define LPFC_USER_LINK_SPEED_4G 4 /* 4 Gigabaud */
478 #define LPFC_USER_LINK_SPEED_8G 8 /* 8 Gigabaud */
479 #define LPFC_USER_LINK_SPEED_10G 10 /* 10 Gigabaud */
480 #define LPFC_USER_LINK_SPEED_16G 16 /* 16 Gigabaud */
481 #define LPFC_USER_LINK_SPEED_MAX LPFC_USER_LINK_SPEED_16G
482 #define LPFC_USER_LINK_SPEED_BITMAP ((1 << LPFC_USER_LINK_SPEED_16G) | \
483 (1 << LPFC_USER_LINK_SPEED_10G) | \
484 (1 << LPFC_USER_LINK_SPEED_8G) | \
485 (1 << LPFC_USER_LINK_SPEED_4G) | \
486 (1 << LPFC_USER_LINK_SPEED_2G) | \
487 (1 << LPFC_USER_LINK_SPEED_1G) | \
488 (1 << LPFC_USER_LINK_SPEED_AUTO))
489 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8, 10, 16"
490
491 enum nemb_type {
492 nemb_mse = 1,
493 nemb_hbd
494 };
495
496 enum mbox_type {
497 mbox_rd = 1,
498 mbox_wr
499 };
500
501 enum dma_type {
502 dma_mbox = 1,
503 dma_ebuf
504 };
505
506 enum sta_type {
507 sta_pre_addr = 1,
508 sta_pos_addr
509 };
510
511 struct lpfc_mbox_ext_buf_ctx {
512 uint32_t state;
513 #define LPFC_BSG_MBOX_IDLE 0
514 #define LPFC_BSG_MBOX_HOST 1
515 #define LPFC_BSG_MBOX_PORT 2
516 #define LPFC_BSG_MBOX_DONE 3
517 #define LPFC_BSG_MBOX_ABTS 4
518 enum nemb_type nembType;
519 enum mbox_type mboxType;
520 uint32_t numBuf;
521 uint32_t mbxTag;
522 uint32_t seqNum;
523 struct lpfc_dmabuf *mbx_dmabuf;
524 struct list_head ext_dmabuf_list;
525 };
526
527 struct lpfc_hba {
528 /* SCSI interface function jump table entries */
529 int (*lpfc_new_scsi_buf)
530 (struct lpfc_vport *, int);
531 struct lpfc_scsi_buf * (*lpfc_get_scsi_buf)
532 (struct lpfc_hba *, struct lpfc_nodelist *);
533 int (*lpfc_scsi_prep_dma_buf)
534 (struct lpfc_hba *, struct lpfc_scsi_buf *);
535 void (*lpfc_scsi_unprep_dma_buf)
536 (struct lpfc_hba *, struct lpfc_scsi_buf *);
537 void (*lpfc_release_scsi_buf)
538 (struct lpfc_hba *, struct lpfc_scsi_buf *);
539 void (*lpfc_rampdown_queue_depth)
540 (struct lpfc_hba *);
541 void (*lpfc_scsi_prep_cmnd)
542 (struct lpfc_vport *, struct lpfc_scsi_buf *,
543 struct lpfc_nodelist *);
544
545 /* IOCB interface function jump table entries */
546 int (*__lpfc_sli_issue_iocb)
547 (struct lpfc_hba *, uint32_t,
548 struct lpfc_iocbq *, uint32_t);
549 void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
550 struct lpfc_iocbq *);
551 int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
552 IOCB_t * (*lpfc_get_iocb_from_iocbq)
553 (struct lpfc_iocbq *);
554 void (*lpfc_scsi_cmd_iocb_cmpl)
555 (struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
556
557 /* MBOX interface function jump table entries */
558 int (*lpfc_sli_issue_mbox)
559 (struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
560
561 /* Slow-path IOCB process function jump table entries */
562 void (*lpfc_sli_handle_slow_ring_event)
563 (struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
564 uint32_t mask);
565
566 /* INIT device interface function jump table entries */
567 int (*lpfc_sli_hbq_to_firmware)
568 (struct lpfc_hba *, uint32_t, struct hbq_dmabuf *);
569 int (*lpfc_sli_brdrestart)
570 (struct lpfc_hba *);
571 int (*lpfc_sli_brdready)
572 (struct lpfc_hba *, uint32_t);
573 void (*lpfc_handle_eratt)
574 (struct lpfc_hba *);
575 void (*lpfc_stop_port)
576 (struct lpfc_hba *);
577 int (*lpfc_hba_init_link)
578 (struct lpfc_hba *, uint32_t);
579 int (*lpfc_hba_down_link)
580 (struct lpfc_hba *, uint32_t);
581 int (*lpfc_selective_reset)
582 (struct lpfc_hba *);
583
584 int (*lpfc_bg_scsi_prep_dma_buf)
585 (struct lpfc_hba *, struct lpfc_scsi_buf *);
586 /* Add new entries here */
587
588 /* SLI4 specific HBA data structure */
589 struct lpfc_sli4_hba sli4_hba;
590
591 struct lpfc_sli sli;
592 uint8_t pci_dev_grp; /* lpfc PCI dev group: 0x0, 0x1, 0x2,... */
593 uint32_t sli_rev; /* SLI2, SLI3, or SLI4 */
594 uint32_t sli3_options; /* Mask of enabled SLI3 options */
595 #define LPFC_SLI3_HBQ_ENABLED 0x01
596 #define LPFC_SLI3_NPIV_ENABLED 0x02
597 #define LPFC_SLI3_VPORT_TEARDOWN 0x04
598 #define LPFC_SLI3_CRP_ENABLED 0x08
599 #define LPFC_SLI3_BG_ENABLED 0x20
600 #define LPFC_SLI3_DSS_ENABLED 0x40
601 #define LPFC_SLI4_PERFH_ENABLED 0x80
602 #define LPFC_SLI4_PHWQ_ENABLED 0x100
603 uint32_t iocb_cmd_size;
604 uint32_t iocb_rsp_size;
605
606 enum hba_state link_state;
607 uint32_t link_flag; /* link state flags */
608 #define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
609 /* This flag is set while issuing */
610 /* INIT_LINK mailbox command */
611 #define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
612 #define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
613
614 uint32_t hba_flag; /* hba generic flags */
615 #define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
616 #define DEFER_ERATT 0x2 /* Deferred error attention in progress */
617 #define HBA_FCOE_MODE 0x4 /* HBA function in FCoE Mode */
618 #define HBA_SP_QUEUE_EVT 0x8 /* Slow-path qevt posted to worker thread*/
619 #define HBA_POST_RECEIVE_BUFFER 0x10 /* Rcv buffers need to be posted */
620 #define FCP_XRI_ABORT_EVENT 0x20
621 #define ELS_XRI_ABORT_EVENT 0x40
622 #define ASYNC_EVENT 0x80
623 #define LINK_DISABLED 0x100 /* Link disabled by user */
624 #define FCF_TS_INPROG 0x200 /* FCF table scan in progress */
625 #define FCF_RR_INPROG 0x400 /* FCF roundrobin flogi in progress */
626 #define HBA_FIP_SUPPORT 0x800 /* FIP support in HBA */
627 #define HBA_AER_ENABLED 0x1000 /* AER enabled with HBA */
628 #define HBA_DEVLOSS_TMO 0x2000 /* HBA in devloss timeout */
629 #define HBA_RRQ_ACTIVE 0x4000 /* process the rrq active list */
630 #define HBA_FCP_IOQ_FLUSH 0x8000 /* FCP I/O queues being flushed */
631 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
632 struct lpfc_dmabuf slim2p;
633
634 MAILBOX_t *mbox;
635 uint32_t *mbox_ext;
636 struct lpfc_mbox_ext_buf_ctx mbox_ext_buf_ctx;
637 uint32_t ha_copy;
638 struct _PCB *pcb;
639 struct _IOCB *IOCBs;
640
641 struct lpfc_dmabuf hbqslimp;
642
643 uint16_t pci_cfg_value;
644
645 uint8_t fc_linkspeed; /* Link speed after last READ_LA */
646
647 uint32_t fc_eventTag; /* event tag for link attention */
648 uint32_t link_events;
649
650 /* These fields used to be binfo */
651 uint32_t fc_pref_DID; /* preferred D_ID */
652 uint8_t fc_pref_ALPA; /* preferred AL_PA */
653 uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
654 uint32_t fc_edtov; /* E_D_TOV timer value */
655 uint32_t fc_arbtov; /* ARB_TOV timer value */
656 uint32_t fc_ratov; /* R_A_TOV timer value */
657 uint32_t fc_rttov; /* R_T_TOV timer value */
658 uint32_t fc_altov; /* AL_TOV timer value */
659 uint32_t fc_crtov; /* C_R_TOV timer value */
660 uint32_t fc_citov; /* C_I_TOV timer value */
661
662 struct serv_parm fc_fabparam; /* fabric service parameters buffer */
663 uint8_t alpa_map[128]; /* AL_PA map from READ_LA */
664
665 uint32_t lmt;
666
667 uint32_t fc_topology; /* link topology, from LINK INIT */
668
669 struct lpfc_stats fc_stat;
670
671 struct lpfc_nodelist fc_fcpnodev; /* nodelist entry for no device */
672 uint32_t nport_event_cnt; /* timestamp for nlplist entry */
673
674 uint8_t wwnn[8];
675 uint8_t wwpn[8];
676 uint32_t RandomData[7];
677
678 /* HBA Config Parameters */
679 uint32_t cfg_ack0;
680 uint32_t cfg_enable_npiv;
681 uint32_t cfg_enable_rrq;
682 uint32_t cfg_topology;
683 uint32_t cfg_link_speed;
684 #define LPFC_FCF_FOV 1 /* Fast fcf failover */
685 #define LPFC_FCF_PRIORITY 2 /* Priority fcf failover */
686 uint32_t cfg_fcf_failover_policy;
687 uint32_t cfg_cr_delay;
688 uint32_t cfg_cr_count;
689 uint32_t cfg_multi_ring_support;
690 uint32_t cfg_multi_ring_rctl;
691 uint32_t cfg_multi_ring_type;
692 uint32_t cfg_poll;
693 uint32_t cfg_poll_tmo;
694 uint32_t cfg_use_msi;
695 uint32_t cfg_fcp_imax;
696 uint32_t cfg_fcp_wq_count;
697 uint32_t cfg_fcp_eq_count;
698 uint32_t cfg_sg_seg_cnt;
699 uint32_t cfg_prot_sg_seg_cnt;
700 uint32_t cfg_sg_dma_buf_size;
701 uint64_t cfg_soft_wwnn;
702 uint64_t cfg_soft_wwpn;
703 uint32_t cfg_hba_queue_depth;
704 uint32_t cfg_enable_hba_reset;
705 uint32_t cfg_enable_hba_heartbeat;
706 uint32_t cfg_enable_bg;
707 uint32_t cfg_hostmem_hgp;
708 uint32_t cfg_log_verbose;
709 uint32_t cfg_aer_support;
710 uint32_t cfg_sriov_nr_virtfn;
711 uint32_t cfg_iocb_cnt;
712 uint32_t cfg_suppress_link_up;
713 #define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
714 #define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
715 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
716 uint32_t cfg_enable_dss;
717 lpfc_vpd_t vpd; /* vital product data */
718
719 struct pci_dev *pcidev;
720 struct list_head work_list;
721 uint32_t work_ha; /* Host Attention Bits for WT */
722 uint32_t work_ha_mask; /* HA Bits owned by WT */
723 uint32_t work_hs; /* HS stored in case of ERRAT */
724 uint32_t work_status[2]; /* Extra status from SLIM */
725
726 wait_queue_head_t work_waitq;
727 struct task_struct *worker_thread;
728 unsigned long data_flags;
729
730 uint32_t hbq_in_use; /* HBQs in use flag */
731 struct list_head rb_pend_list; /* Received buffers to be processed */
732 uint32_t hbq_count; /* Count of configured HBQs */
733 struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
734
735 uint32_t fcp_qidx; /* next work queue to post work to */
736
737 unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
738 unsigned long pci_bar1_map; /* Physical address for PCI BAR1 */
739 unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
740 void __iomem *slim_memmap_p; /* Kernel memory mapped address for
741 PCI BAR0 */
742 void __iomem *ctrl_regs_memmap_p;/* Kernel memory mapped address for
743 PCI BAR2 */
744
745 void __iomem *MBslimaddr; /* virtual address for mbox cmds */
746 void __iomem *HAregaddr; /* virtual address for host attn reg */
747 void __iomem *CAregaddr; /* virtual address for chip attn reg */
748 void __iomem *HSregaddr; /* virtual address for host status
749 reg */
750 void __iomem *HCregaddr; /* virtual address for host ctl reg */
751
752 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
753 struct lpfc_pgp *port_gp;
754 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
755 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
756
757 int brd_no; /* FC board number */
758 char SerialNumber[32]; /* adapter Serial Number */
759 char OptionROMVersion[32]; /* adapter BIOS / Fcode version */
760 char ModelDesc[256]; /* Model Description */
761 char ModelName[80]; /* Model Name */
762 char ProgramType[256]; /* Program Type */
763 char Port[20]; /* Port No */
764 uint8_t vpd_flag; /* VPD data flag */
765
766 #define VPD_MODEL_DESC 0x1 /* valid vpd model description */
767 #define VPD_MODEL_NAME 0x2 /* valid vpd model name */
768 #define VPD_PROGRAM_TYPE 0x4 /* valid vpd program type */
769 #define VPD_PORT 0x8 /* valid vpd port data */
770 #define VPD_MASK 0xf /* mask for any vpd data */
771
772 uint8_t soft_wwn_enable;
773
774 struct timer_list fcp_poll_timer;
775 struct timer_list eratt_poll;
776
777 /*
778 * stat counters
779 */
780 uint64_t fc4InputRequests;
781 uint64_t fc4OutputRequests;
782 uint64_t fc4ControlRequests;
783 uint64_t bg_guard_err_cnt;
784 uint64_t bg_apptag_err_cnt;
785 uint64_t bg_reftag_err_cnt;
786
787 /* fastpath list. */
788 spinlock_t scsi_buf_list_lock;
789 struct list_head lpfc_scsi_buf_list;
790 uint32_t total_scsi_bufs;
791 struct list_head lpfc_iocb_list;
792 uint32_t total_iocbq_bufs;
793 struct list_head active_rrq_list;
794 spinlock_t hbalock;
795
796 /* pci_mem_pools */
797 struct pci_pool *lpfc_scsi_dma_buf_pool;
798 struct pci_pool *lpfc_mbuf_pool;
799 struct pci_pool *lpfc_hrb_pool; /* header receive buffer pool */
800 struct pci_pool *lpfc_drb_pool; /* data receive buffer pool */
801 struct pci_pool *lpfc_hbq_pool; /* SLI3 hbq buffer pool */
802 struct lpfc_dma_pool lpfc_mbuf_safety_pool;
803
804 mempool_t *mbox_mem_pool;
805 mempool_t *nlp_mem_pool;
806 mempool_t *rrq_pool;
807
808 struct fc_host_statistics link_stats;
809 enum intr_type_t intr_type;
810 uint32_t intr_mode;
811 #define LPFC_INTR_ERROR 0xFFFFFFFF
812 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
813
814 struct list_head port_list;
815 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
816 uint16_t max_vpi; /* Maximum virtual nports */
817 #define LPFC_MAX_VPI 0xFFFF /* Max number of VPI supported */
818 uint16_t max_vports; /*
819 * For IOV HBAs max_vpi can change
820 * after a reset. max_vports is max
821 * number of vports present. This can
822 * be greater than max_vpi.
823 */
824 uint16_t vpi_base;
825 uint16_t vfi_base;
826 unsigned long *vpi_bmask; /* vpi allocation table */
827 uint16_t *vpi_ids;
828 uint16_t vpi_count;
829 struct list_head lpfc_vpi_blk_list;
830
831 /* Data structure used by fabric iocb scheduler */
832 struct list_head fabric_iocb_list;
833 atomic_t fabric_iocb_count;
834 struct timer_list fabric_block_timer;
835 unsigned long bit_flags;
836 #define FABRIC_COMANDS_BLOCKED 0
837 atomic_t num_rsrc_err;
838 atomic_t num_cmd_success;
839 unsigned long last_rsrc_error_time;
840 unsigned long last_ramp_down_time;
841 unsigned long last_ramp_up_time;
842 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
843 struct dentry *hba_debugfs_root;
844 atomic_t debugfs_vport_count;
845 struct dentry *debug_hbqinfo;
846 struct dentry *debug_dumpHostSlim;
847 struct dentry *debug_dumpHBASlim;
848 struct dentry *debug_dumpData; /* BlockGuard BPL */
849 struct dentry *debug_dumpDif; /* BlockGuard BPL */
850 struct dentry *debug_InjErrLBA; /* LBA to inject errors at */
851 struct dentry *debug_InjErrNPortID; /* NPortID to inject errors at */
852 struct dentry *debug_InjErrWWPN; /* WWPN to inject errors at */
853 struct dentry *debug_writeGuard; /* inject write guard_tag errors */
854 struct dentry *debug_writeApp; /* inject write app_tag errors */
855 struct dentry *debug_writeRef; /* inject write ref_tag errors */
856 struct dentry *debug_readGuard; /* inject read guard_tag errors */
857 struct dentry *debug_readApp; /* inject read app_tag errors */
858 struct dentry *debug_readRef; /* inject read ref_tag errors */
859
860 /* T10 DIF error injection */
861 uint32_t lpfc_injerr_wgrd_cnt;
862 uint32_t lpfc_injerr_wapp_cnt;
863 uint32_t lpfc_injerr_wref_cnt;
864 uint32_t lpfc_injerr_rgrd_cnt;
865 uint32_t lpfc_injerr_rapp_cnt;
866 uint32_t lpfc_injerr_rref_cnt;
867 uint32_t lpfc_injerr_nportid;
868 struct lpfc_name lpfc_injerr_wwpn;
869 sector_t lpfc_injerr_lba;
870 #define LPFC_INJERR_LBA_OFF (sector_t)(-1)
871
872 struct dentry *debug_slow_ring_trc;
873 struct lpfc_debugfs_trc *slow_ring_trc;
874 atomic_t slow_ring_trc_cnt;
875 /* iDiag debugfs sub-directory */
876 struct dentry *idiag_root;
877 struct dentry *idiag_pci_cfg;
878 struct dentry *idiag_bar_acc;
879 struct dentry *idiag_que_info;
880 struct dentry *idiag_que_acc;
881 struct dentry *idiag_drb_acc;
882 struct dentry *idiag_ctl_acc;
883 struct dentry *idiag_mbx_acc;
884 struct dentry *idiag_ext_acc;
885 #endif
886
887 /* Used for deferred freeing of ELS data buffers */
888 struct list_head elsbuf;
889 int elsbuf_cnt;
890 int elsbuf_prev_cnt;
891
892 uint8_t temp_sensor_support;
893 /* Fields used for heart beat. */
894 unsigned long last_completion_time;
895 unsigned long skipped_hb;
896 struct timer_list hb_tmofunc;
897 uint8_t hb_outstanding;
898 struct timer_list rrq_tmr;
899 enum hba_temp_state over_temp_state;
900 /* ndlp reference management */
901 spinlock_t ndlp_lock;
902 /*
903 * Following bit will be set for all buffer tags which are not
904 * associated with any HBQ.
905 */
906 #define QUE_BUFTAG_BIT (1<<31)
907 uint32_t buffer_tag_count;
908 int wait_4_mlo_maint_flg;
909 wait_queue_head_t wait_4_mlo_m_q;
910 /* data structure used for latency data collection */
911 #define LPFC_NO_BUCKET 0
912 #define LPFC_LINEAR_BUCKET 1
913 #define LPFC_POWER2_BUCKET 2
914 uint8_t bucket_type;
915 uint32_t bucket_base;
916 uint32_t bucket_step;
917
918 /* Maximum number of events that can be outstanding at any time*/
919 #define LPFC_MAX_EVT_COUNT 512
920 atomic_t fast_event_count;
921 uint32_t fcoe_eventtag;
922 uint32_t fcoe_eventtag_at_fcf_scan;
923 uint32_t fcoe_cvl_eventtag;
924 uint32_t fcoe_cvl_eventtag_attn;
925 struct lpfc_fcf fcf;
926 uint8_t fc_map[3];
927 uint8_t valid_vlan;
928 uint16_t vlan_id;
929 struct list_head fcf_conn_rec_list;
930
931 spinlock_t ct_ev_lock; /* synchronize access to ct_ev_waiters */
932 struct list_head ct_ev_waiters;
933 struct unsol_rcv_ct_ctx ct_ctx[64];
934 uint32_t ctx_idx;
935
936 uint8_t menlo_flag; /* menlo generic flags */
937 #define HBA_MENLO_SUPPORT 0x1 /* HBA supports menlo commands */
938 uint32_t iocb_cnt;
939 uint32_t iocb_max;
940 atomic_t sdev_cnt;
941 uint8_t fips_spec_rev;
942 uint8_t fips_level;
943 };
944
945 static inline struct Scsi_Host *
946 lpfc_shost_from_vport(struct lpfc_vport *vport)
947 {
948 return container_of((void *) vport, struct Scsi_Host, hostdata[0]);
949 }
950
951 static inline void
952 lpfc_set_loopback_flag(struct lpfc_hba *phba)
953 {
954 if (phba->cfg_topology == FLAGS_LOCAL_LB)
955 phba->link_flag |= LS_LOOPBACK_MODE;
956 else
957 phba->link_flag &= ~LS_LOOPBACK_MODE;
958 }
959
960 static inline int
961 lpfc_is_link_up(struct lpfc_hba *phba)
962 {
963 return phba->link_state == LPFC_LINK_UP ||
964 phba->link_state == LPFC_CLEAR_LA ||
965 phba->link_state == LPFC_HBA_READY;
966 }
967
968 static inline void
969 lpfc_worker_wake_up(struct lpfc_hba *phba)
970 {
971 /* Set the lpfc data pending flag */
972 set_bit(LPFC_DATA_READY, &phba->data_flags);
973
974 /* Wake up worker thread */
975 wake_up(&phba->work_waitq);
976 return;
977 }
978
979 static inline int
980 lpfc_readl(void __iomem *addr, uint32_t *data)
981 {
982 uint32_t temp;
983 temp = readl(addr);
984 if (temp == 0xffffffff)
985 return -EIO;
986 *data = temp;
987 return 0;
988 }
989
990 static inline int
991 lpfc_sli_read_hs(struct lpfc_hba *phba)
992 {
993 /*
994 * There was a link/board error. Read the status register to retrieve
995 * the error event and process it.
996 */
997 phba->sli.slistat.err_attn_event++;
998
999 /* Save status info and check for unplug error */
1000 if (lpfc_readl(phba->HSregaddr, &phba->work_hs) ||
1001 lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) ||
1002 lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) {
1003 return -EIO;
1004 }
1005
1006 /* Clear chip Host Attention error bit */
1007 writel(HA_ERATT, phba->HAregaddr);
1008 readl(phba->HAregaddr); /* flush */
1009 phba->pport->stopped = 1;
1010
1011 return 0;
1012 }
Linux ARM platform port for MOXA ART SoC