1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright 2008 Cisco Systems, Inc. All rights reserved.
4 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 */
6 #ifndef _FNIC_H_
7 #define _FNIC_H_
8
9 #include <linux/interrupt.h>
10 #include <linux/netdevice.h>
11 #include <linux/workqueue.h>
12 #include <linux/bitops.h>
13 #include <scsi/scsi_cmnd.h>
14 #include <scsi/scsi_transport.h>
15 #include <scsi/scsi_transport_fc.h>
16 #include <scsi/fc_frame.h>
17 #include "fnic_io.h"
18 #include "fnic_res.h"
19 #include "fnic_trace.h"
20 #include "fnic_stats.h"
21 #include "vnic_dev.h"
22 #include "vnic_wq.h"
23 #include "vnic_rq.h"
24 #include "vnic_cq.h"
25 #include "vnic_wq_copy.h"
26 #include "vnic_intr.h"
27 #include "vnic_stats.h"
28 #include "vnic_scsi.h"
29 #include "fnic_fdls.h"
30
31 #define DRV_NAME "fnic"
32 #define DRV_DESCRIPTION "Cisco FCoE HBA Driver"
33 #define DRV_VERSION "1.8.0.0"
34 #define PFX DRV_NAME ": "
35 #define DFX DRV_NAME "%d: "
36
37 #define FABRIC_LOGO_MAX_RETRY 3
38 #define DESC_CLEAN_LOW_WATERMARK 8
39 #define FNIC_UCSM_DFLT_THROTTLE_CNT_BLD 16 /* UCSM default throttle count */
40 #define FNIC_MIN_IO_REQ 256 /* Min IO throttle count */
41 #define FNIC_MAX_IO_REQ 1024 /* scsi_cmnd tag map entries */
42 #define FNIC_DFLT_IO_REQ 256 /* Default scsi_cmnd tag map entries */
43 #define FNIC_DFLT_QUEUE_DEPTH 256
44 #define FNIC_STATS_RATE_LIMIT 4 /* limit rate at which stats are pulled up */
45 #define LUN0_DELAY_TIME 9
46
47 /*
48 * Tag bits used for special requests.
49 */
50 #define FNIC_TAG_ABORT BIT(30) /* tag bit indicating abort */
51 #define FNIC_TAG_DEV_RST BIT(29) /* indicates device reset */
52 #define FNIC_TAG_MASK (BIT(24) - 1) /* mask for lookup */
53 #define FNIC_NO_TAG -1
54
55 /*
56 * Command flags to identify the type of command and for other future
57 * use.
58 */
59 #define FNIC_NO_FLAGS 0
60 #define FNIC_IO_INITIALIZED BIT(0)
61 #define FNIC_IO_ISSUED BIT(1)
62 #define FNIC_IO_DONE BIT(2)
63 #define FNIC_IO_REQ_NULL BIT(3)
64 #define FNIC_IO_ABTS_PENDING BIT(4)
65 #define FNIC_IO_ABORTED BIT(5)
66 #define FNIC_IO_ABTS_ISSUED BIT(6)
67 #define FNIC_IO_TERM_ISSUED BIT(7)
68 #define FNIC_IO_INTERNAL_TERM_ISSUED BIT(8)
69 #define FNIC_IO_ABT_TERM_DONE BIT(9)
70 #define FNIC_IO_ABT_TERM_REQ_NULL BIT(10)
71 #define FNIC_IO_ABT_TERM_TIMED_OUT BIT(11)
72 #define FNIC_DEVICE_RESET BIT(12) /* Device reset request */
73 #define FNIC_DEV_RST_ISSUED BIT(13)
74 #define FNIC_DEV_RST_TIMED_OUT BIT(14)
75 #define FNIC_DEV_RST_ABTS_ISSUED BIT(15)
76 #define FNIC_DEV_RST_TERM_ISSUED BIT(16)
77 #define FNIC_DEV_RST_DONE BIT(17)
78 #define FNIC_DEV_RST_REQ_NULL BIT(18)
79 #define FNIC_DEV_RST_ABTS_DONE BIT(19)
80 #define FNIC_DEV_RST_TERM_DONE BIT(20)
81 #define FNIC_DEV_RST_ABTS_PENDING BIT(21)
82
83 #define FNIC_FW_RESET_TIMEOUT 60000 /* mSec */
84 #define FNIC_FCOE_MAX_CMD_LEN 16
85 /* Retry supported by rport (returned by PRLI service parameters) */
86 #define FNIC_FC_RP_FLAGS_RETRY 0x1
87
88 /* Cisco vendor id */
89 #define PCI_VENDOR_ID_CISCO 0x1137
90 #define PCI_DEVICE_ID_CISCO_VIC_FC 0x0045 /* fc vnic */
91
92 /* sereno pcie switch */
93 #define PCI_DEVICE_ID_CISCO_SERENO 0x004e
94 #define PCI_DEVICE_ID_CISCO_CRUZ 0x007a /* Cruz */
95 #define PCI_DEVICE_ID_CISCO_BODEGA 0x0131 /* Bodega */
96 #define PCI_DEVICE_ID_CISCO_BEVERLY 0x025f /* Beverly */
97
98 /* Sereno */
99 #define PCI_SUBDEVICE_ID_CISCO_VASONA 0x004f /* vasona mezz */
100 #define PCI_SUBDEVICE_ID_CISCO_COTATI 0x0084 /* cotati mlom */
101 #define PCI_SUBDEVICE_ID_CISCO_LEXINGTON 0x0085 /* lexington pcie */
102 #define PCI_SUBDEVICE_ID_CISCO_ICEHOUSE 0x00cd /* Icehouse */
103 #define PCI_SUBDEVICE_ID_CISCO_KIRKWOODLAKE 0x00ce /* KirkwoodLake pcie */
104 #define PCI_SUBDEVICE_ID_CISCO_SUSANVILLE 0x012e /* Susanville MLOM */
105 #define PCI_SUBDEVICE_ID_CISCO_TORRANCE 0x0139 /* Torrance MLOM */
106
107 /* Cruz */
108 #define PCI_SUBDEVICE_ID_CISCO_CALISTOGA 0x012c /* Calistoga MLOM */
109 #define PCI_SUBDEVICE_ID_CISCO_MOUNTAINVIEW 0x0137 /* Cruz Mezz */
110 /* Cruz MountTian SIOC */
111 #define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN 0x014b
112 #define PCI_SUBDEVICE_ID_CISCO_CLEARLAKE 0x014d /* ClearLake pcie */
113 /* Cruz MountTian2 SIOC */
114 #define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN2 0x0157
115 #define PCI_SUBDEVICE_ID_CISCO_CLAREMONT 0x015d /* Claremont MLOM */
116
117 /* Bodega */
118 /* VIC 1457 PCIe mLOM */
119 #define PCI_SUBDEVICE_ID_CISCO_BRADBURY 0x0218
120 #define PCI_SUBDEVICE_ID_CISCO_BRENTWOOD 0x0217 /* VIC 1455 PCIe */
121 /* VIC 1487 PCIe mLOM */
122 #define PCI_SUBDEVICE_ID_CISCO_BURLINGAME 0x021a
123 #define PCI_SUBDEVICE_ID_CISCO_BAYSIDE 0x0219 /* VIC 1485 PCIe */
124 /* VIC 1440 Mezz mLOM */
125 #define PCI_SUBDEVICE_ID_CISCO_BAKERSFIELD 0x0215
126 #define PCI_SUBDEVICE_ID_CISCO_BOONVILLE 0x0216 /* VIC 1480 Mezz */
127 #define PCI_SUBDEVICE_ID_CISCO_BENICIA 0x024a /* VIC 1495 */
128 #define PCI_SUBDEVICE_ID_CISCO_BEAUMONT 0x024b /* VIC 1497 */
129 #define PCI_SUBDEVICE_ID_CISCO_BRISBANE 0x02af /* VIC 1467 */
130 #define PCI_SUBDEVICE_ID_CISCO_BENTON 0x02b0 /* VIC 1477 */
131 #define PCI_SUBDEVICE_ID_CISCO_TWIN_RIVER 0x02cf /* VIC 14425 */
132 #define PCI_SUBDEVICE_ID_CISCO_TWIN_PEAK 0x02d0 /* VIC 14825 */
133
134 /* Beverly */
135 #define PCI_SUBDEVICE_ID_CISCO_BERN 0x02de /* VIC 15420 */
136 #define PCI_SUBDEVICE_ID_CISCO_STOCKHOLM 0x02dd /* VIC 15428 */
137 #define PCI_SUBDEVICE_ID_CISCO_KRAKOW 0x02dc /* VIC 15411 */
138 #define PCI_SUBDEVICE_ID_CISCO_LUCERNE 0x02db /* VIC 15231 */
139 #define PCI_SUBDEVICE_ID_CISCO_TURKU 0x02e8 /* VIC 15238 */
140 #define PCI_SUBDEVICE_ID_CISCO_TURKU_PLUS 0x02f3 /* VIC 15237 */
141 #define PCI_SUBDEVICE_ID_CISCO_ZURICH 0x02df /* VIC 15230 */
142 #define PCI_SUBDEVICE_ID_CISCO_RIGA 0x02e0 /* VIC 15427 */
143 #define PCI_SUBDEVICE_ID_CISCO_GENEVA 0x02e1 /* VIC 15422 */
144 #define PCI_SUBDEVICE_ID_CISCO_HELSINKI 0x02e4 /* VIC 15235 */
145 #define PCI_SUBDEVICE_ID_CISCO_GOTHENBURG 0x02f2 /* VIC 15425 */
146
147 struct fnic_pcie_device {
148 u32 device;
149 u8 *desc;
150 u32 subsystem_device;
151 u8 *subsys_desc;
152 };
153
154 /*
155 * fnic private data per SCSI command.
156 * These fields are locked by the hashed io_req_lock.
157 */
158 struct fnic_cmd_priv {
159 struct fnic_io_req *io_req;
160 enum fnic_ioreq_state state;
161 u32 flags;
162 u16 abts_status;
163 u16 lr_status;
164 };
165
fnic_priv(struct scsi_cmnd * cmd)166 static inline struct fnic_cmd_priv *fnic_priv(struct scsi_cmnd *cmd)
167 {
168 return scsi_cmd_priv(cmd);
169 }
170
fnic_flags_and_state(struct scsi_cmnd * cmd)171 static inline u64 fnic_flags_and_state(struct scsi_cmnd *cmd)
172 {
173 struct fnic_cmd_priv *fcmd = fnic_priv(cmd);
174
175 return ((u64)fcmd->flags << 32) | fcmd->state;
176 }
177
178 #define FCPIO_INVALID_CODE 0x100 /* hdr_status value unused by firmware */
179
180 #define FNIC_LUN_RESET_TIMEOUT 10000 /* mSec */
181 #define FNIC_HOST_RESET_TIMEOUT 10000 /* mSec */
182 #define FNIC_RMDEVICE_TIMEOUT 1000 /* mSec */
183 #define FNIC_HOST_RESET_SETTLE_TIME 30 /* Sec */
184 #define FNIC_ABT_TERM_DELAY_TIMEOUT 500 /* mSec */
185
186 #define FNIC_MAX_FCP_TARGET 256
187 #define FNIC_PCI_OFFSET 2
188 /**
189 * state_flags to identify host state along along with fnic's state
190 **/
191 #define __FNIC_FLAGS_FWRESET BIT(0) /* fwreset in progress */
192 #define __FNIC_FLAGS_BLOCK_IO BIT(1) /* IOs are blocked */
193
194 #define FNIC_FLAGS_NONE (0)
195 #define FNIC_FLAGS_FWRESET (__FNIC_FLAGS_FWRESET | \
196 __FNIC_FLAGS_BLOCK_IO)
197
198 #define FNIC_FLAGS_IO_BLOCKED (__FNIC_FLAGS_BLOCK_IO)
199
200 #define fnic_set_state_flags(fnicp, st_flags) \
201 __fnic_set_state_flags(fnicp, st_flags, 0)
202
203 #define fnic_clear_state_flags(fnicp, st_flags) \
204 __fnic_set_state_flags(fnicp, st_flags, 1)
205
206 enum reset_states {
207 NOT_IN_PROGRESS = 0,
208 IN_PROGRESS,
209 RESET_ERROR
210 };
211
212 enum rscn_type {
213 NOT_PC_RSCN = 0,
214 PC_RSCN
215 };
216
217 enum pc_rscn_handling_status {
218 PC_RSCN_HANDLING_NOT_IN_PROGRESS = 0,
219 PC_RSCN_HANDLING_IN_PROGRESS
220 };
221
222 enum pc_rscn_handling_feature {
223 PC_RSCN_HANDLING_FEATURE_OFF = 0,
224 PC_RSCN_HANDLING_FEATURE_ON
225 };
226
227 extern unsigned int fnic_fdmi_support;
228 extern unsigned int fnic_log_level;
229 extern unsigned int io_completions;
230 extern struct workqueue_struct *fnic_event_queue;
231
232 extern unsigned int pc_rscn_handling_feature_flag;
233 extern spinlock_t reset_fnic_list_lock;
234 extern struct list_head reset_fnic_list;
235 extern struct workqueue_struct *reset_fnic_work_queue;
236 extern struct work_struct reset_fnic_work;
237
238
239 #define FNIC_MAIN_LOGGING 0x01
240 #define FNIC_FCS_LOGGING 0x02
241 #define FNIC_SCSI_LOGGING 0x04
242 #define FNIC_ISR_LOGGING 0x08
243
244 #define FNIC_CHECK_LOGGING(LEVEL, CMD) \
245 do { \
246 if (unlikely(fnic_log_level & LEVEL)) \
247 do { \
248 CMD; \
249 } while (0); \
250 } while (0)
251
252 #define FNIC_MAIN_DBG(kern_level, host, fnic_num, fmt, args...) \
253 FNIC_CHECK_LOGGING(FNIC_MAIN_LOGGING, \
254 shost_printk(kern_level, host, \
255 "fnic<%d>: %s: %d: " fmt, fnic_num,\
256 __func__, __LINE__, ##args);)
257
258 #define FNIC_FCS_DBG(kern_level, host, fnic_num, fmt, args...) \
259 FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \
260 shost_printk(kern_level, host, \
261 "fnic<%d>: %s: %d: " fmt, fnic_num,\
262 __func__, __LINE__, ##args);)
263
264 #define FNIC_FIP_DBG(kern_level, host, fnic_num, fmt, args...) \
265 FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \
266 shost_printk(kern_level, host, \
267 "fnic<%d>: %s: %d: " fmt, fnic_num,\
268 __func__, __LINE__, ##args);)
269
270 #define FNIC_SCSI_DBG(kern_level, host, fnic_num, fmt, args...) \
271 FNIC_CHECK_LOGGING(FNIC_SCSI_LOGGING, \
272 shost_printk(kern_level, host, \
273 "fnic<%d>: %s: %d: " fmt, fnic_num,\
274 __func__, __LINE__, ##args);)
275
276 #define FNIC_ISR_DBG(kern_level, host, fnic_num, fmt, args...) \
277 FNIC_CHECK_LOGGING(FNIC_ISR_LOGGING, \
278 shost_printk(kern_level, host, \
279 "fnic<%d>: %s: %d: " fmt, fnic_num,\
280 __func__, __LINE__, ##args);)
281
282 #define FNIC_MAIN_NOTE(kern_level, host, fmt, args...) \
283 shost_printk(kern_level, host, fmt, ##args)
284
285 #define FNIC_WQ_COPY_MAX 64
286 #define FNIC_WQ_MAX 1
287 #define FNIC_RQ_MAX 1
288 #define FNIC_CQ_MAX (FNIC_WQ_COPY_MAX + FNIC_WQ_MAX + FNIC_RQ_MAX)
289 #define FNIC_DFLT_IO_COMPLETIONS 256
290
291 #define FNIC_MQ_CQ_INDEX 2
292
293 extern const char *fnic_state_str[];
294
295 enum fnic_intx_intr_index {
296 FNIC_INTX_WQ_RQ_COPYWQ,
297 FNIC_INTX_DUMMY,
298 FNIC_INTX_NOTIFY,
299 FNIC_INTX_ERR,
300 FNIC_INTX_INTR_MAX,
301 };
302
303 enum fnic_msix_intr_index {
304 FNIC_MSIX_RQ,
305 FNIC_MSIX_WQ,
306 FNIC_MSIX_WQ_COPY,
307 FNIC_MSIX_ERR_NOTIFY = FNIC_MSIX_WQ_COPY + FNIC_WQ_COPY_MAX,
308 FNIC_MSIX_INTR_MAX,
309 };
310
311 struct fnic_msix_entry {
312 int requested;
313 char devname[IFNAMSIZ + 11];
314 irqreturn_t (*isr)(int, void *);
315 void *devid;
316 int irq_num;
317 };
318
319 enum fnic_state {
320 FNIC_IN_FC_MODE = 0,
321 FNIC_IN_FC_TRANS_ETH_MODE,
322 FNIC_IN_ETH_MODE,
323 FNIC_IN_ETH_TRANS_FC_MODE,
324 };
325
326 struct mempool;
327
328 enum fnic_role_e {
329 FNIC_ROLE_FCP_INITIATOR = 0,
330 };
331
332 enum fnic_evt {
333 FNIC_EVT_START_VLAN_DISC = 1,
334 FNIC_EVT_START_FCF_DISC = 2,
335 FNIC_EVT_MAX,
336 };
337
338 struct fnic_frame_list {
339 /*
340 * Link to frame lists
341 */
342 struct list_head links;
343 void *fp;
344 int frame_len;
345 int rx_ethhdr_stripped;
346 };
347
348 struct fnic_event {
349 struct list_head list;
350 struct fnic *fnic;
351 enum fnic_evt event;
352 };
353
354 struct fnic_cpy_wq {
355 unsigned long hw_lock_flags;
356 u16 active_ioreq_count;
357 u16 ioreq_table_size;
358 ____cacheline_aligned struct fnic_io_req **io_req_table;
359 };
360
361 /* Per-instance private data structure */
362 struct fnic {
363 int fnic_num;
364 enum fnic_role_e role;
365 struct fnic_iport_s iport;
366 struct Scsi_Host *host;
367 struct vnic_dev_bar bar0;
368
369 struct fnic_msix_entry msix[FNIC_MSIX_INTR_MAX];
370
371 struct vnic_stats *stats;
372 unsigned long stats_time; /* time of stats update */
373 unsigned long stats_reset_time; /* time of stats reset */
374 struct vnic_nic_cfg *nic_cfg;
375 char name[IFNAMSIZ];
376 struct timer_list notify_timer; /* used for MSI interrupts */
377
378 unsigned int fnic_max_tag_id;
379 unsigned int err_intr_offset;
380 unsigned int link_intr_offset;
381
382 unsigned int wq_count;
383 unsigned int cq_count;
384
385 struct completion reset_completion_wait;
386 struct mutex sgreset_mutex;
387 spinlock_t sgreset_lock; /* lock for sgreset */
388 struct scsi_cmnd *sgreset_sc;
389 struct dentry *fnic_stats_debugfs_host;
390 struct dentry *fnic_stats_debugfs_file;
391 struct dentry *fnic_reset_debugfs_file;
392 unsigned int reset_stats;
393 atomic64_t io_cmpl_skip;
394 struct fnic_stats fnic_stats;
395
396 u32 vlan_hw_insert:1; /* let hw insert the tag */
397 u32 in_remove:1; /* fnic device in removal */
398 u32 stop_rx_link_events:1; /* stop proc. rx frames, link events */
399
400 struct completion *fw_reset_done;
401 u32 reset_in_progress;
402 atomic_t in_flight; /* io counter */
403 bool internal_reset_inprogress;
404 u32 _reserved; /* fill hole */
405 unsigned long state_flags; /* protected by host lock */
406 enum fnic_state state;
407 spinlock_t fnic_lock;
408 unsigned long lock_flags;
409
410 u16 vlan_id; /* VLAN tag including priority */
411 u8 data_src_addr[ETH_ALEN];
412 u64 fcp_input_bytes; /* internal statistic */
413 u64 fcp_output_bytes; /* internal statistic */
414 u32 link_down_cnt;
415 u32 soft_reset_count;
416 int link_status;
417
418 struct list_head list;
419 struct list_head links;
420 struct pci_dev *pdev;
421 struct vnic_fc_config config;
422 struct vnic_dev *vdev;
423 unsigned int raw_wq_count;
424 unsigned int wq_copy_count;
425 unsigned int rq_count;
426 int fw_ack_index[FNIC_WQ_COPY_MAX];
427 unsigned short fw_ack_recd[FNIC_WQ_COPY_MAX];
428 unsigned short wq_copy_desc_low[FNIC_WQ_COPY_MAX];
429 unsigned int intr_count;
430 u32 __iomem *legacy_pba;
431 struct fnic_host_tag *tags;
432 mempool_t *io_req_pool;
433 mempool_t *io_sgl_pool[FNIC_SGL_NUM_CACHES];
434
435 unsigned int copy_wq_base;
436 struct work_struct link_work;
437 struct work_struct frame_work;
438 struct work_struct flush_work;
439 struct list_head frame_queue;
440 struct list_head tx_queue;
441 mempool_t *frame_pool;
442 mempool_t *frame_elem_pool;
443 struct work_struct tport_work;
444 struct list_head tport_event_list;
445
446 char subsys_desc[14];
447 int subsys_desc_len;
448 int pc_rscn_handling_status;
449
450 /*** FIP related data members -- start ***/
451 void (*set_vlan)(struct fnic *, u16 vlan);
452 struct work_struct fip_frame_work;
453 struct work_struct fip_timer_work;
454 struct list_head fip_frame_queue;
455 struct timer_list fip_timer;
456 spinlock_t vlans_lock;
457 struct timer_list retry_fip_timer;
458 struct timer_list fcs_ka_timer;
459 struct timer_list enode_ka_timer;
460 struct timer_list vn_ka_timer;
461 struct list_head vlan_list;
462 /*** FIP related data members -- end ***/
463
464 /* copy work queue cache line section */
465 ____cacheline_aligned struct vnic_wq_copy hw_copy_wq[FNIC_WQ_COPY_MAX];
466 ____cacheline_aligned struct fnic_cpy_wq sw_copy_wq[FNIC_WQ_COPY_MAX];
467
468 /* completion queue cache line section */
469 ____cacheline_aligned struct vnic_cq cq[FNIC_CQ_MAX];
470
471 spinlock_t wq_copy_lock[FNIC_WQ_COPY_MAX];
472
473 /* work queue cache line section */
474 ____cacheline_aligned struct vnic_wq wq[FNIC_WQ_MAX];
475 spinlock_t wq_lock[FNIC_WQ_MAX];
476
477 /* receive queue cache line section */
478 ____cacheline_aligned struct vnic_rq rq[FNIC_RQ_MAX];
479
480 /* interrupt resource cache line section */
481 ____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX];
482 };
483
484 extern struct workqueue_struct *fnic_event_queue;
485 extern struct workqueue_struct *fnic_fip_queue;
486 extern const struct attribute_group *fnic_host_groups[];
487
488 void fnic_clear_intr_mode(struct fnic *fnic);
489 int fnic_set_intr_mode(struct fnic *fnic);
490 int fnic_set_intr_mode_msix(struct fnic *fnic);
491 void fnic_free_intr(struct fnic *fnic);
492 int fnic_request_intr(struct fnic *fnic);
493
494 void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf);
495 void fnic_handle_frame(struct work_struct *work);
496 void fnic_tport_event_handler(struct work_struct *work);
497 void fnic_handle_link(struct work_struct *work);
498 void fnic_handle_event(struct work_struct *work);
499 void fdls_reclaim_oxid_handler(struct work_struct *work);
500 void fdls_schedule_oxid_free(struct fnic_iport_s *iport, uint16_t *active_oxid);
501 void fdls_schedule_oxid_free_retry_work(struct work_struct *work);
502 int fnic_rq_cmpl_handler(struct fnic *fnic, int);
503 int fnic_alloc_rq_frame(struct vnic_rq *rq);
504 void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf);
505 void fnic_flush_tx(struct work_struct *work);
506 void fnic_update_mac_locked(struct fnic *, u8 *new);
507
508 int fnic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
509 int fnic_abort_cmd(struct scsi_cmnd *);
510 int fnic_device_reset(struct scsi_cmnd *);
511 int fnic_eh_host_reset_handler(struct scsi_cmnd *sc);
512 int fnic_host_reset(struct Scsi_Host *shost);
513 void fnic_reset(struct Scsi_Host *shost);
514 int fnic_issue_fc_host_lip(struct Scsi_Host *shost);
515 void fnic_get_host_port_state(struct Scsi_Host *shost);
516 void fnic_scsi_fcpio_reset(struct fnic *fnic);
517 int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int copy_work_to_do, unsigned int cq_index);
518 int fnic_wq_cmpl_handler(struct fnic *fnic, int);
519 int fnic_flogi_reg_handler(struct fnic *fnic, u32);
520 void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq,
521 struct fcpio_host_req *desc);
522 int fnic_fw_reset_handler(struct fnic *fnic);
523 void fnic_terminate_rport_io(struct fc_rport *);
524 const char *fnic_state_to_str(unsigned int state);
525 void fnic_mq_map_queues_cpus(struct Scsi_Host *host);
526 void fnic_log_q_error(struct fnic *fnic);
527 void fnic_handle_link_event(struct fnic *fnic);
528 int fnic_stats_debugfs_init(struct fnic *fnic);
529 void fnic_stats_debugfs_remove(struct fnic *fnic);
530 int fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *);
531
532 void fnic_handle_fip_frame(struct work_struct *work);
533 void fnic_reset_work_handler(struct work_struct *work);
534 void fnic_handle_fip_event(struct fnic *fnic);
535 void fnic_fcoe_reset_vlans(struct fnic *fnic);
536 extern void fnic_handle_fip_timer(struct timer_list *t);
537
538 static inline int
fnic_chk_state_flags_locked(struct fnic * fnic,unsigned long st_flags)539 fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags)
540 {
541 return ((fnic->state_flags & st_flags) == st_flags);
542 }
543 void __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long);
544 void fnic_dump_fchost_stats(struct Scsi_Host *, struct fc_host_statistics *);
545 void fnic_free_txq(struct list_head *head);
546 int fnic_get_desc_by_devid(struct pci_dev *pdev, char **desc,
547 char **subsys_desc);
548 void fnic_fdls_link_status_change(struct fnic *fnic, int linkup);
549 void fnic_delete_fcp_tports(struct fnic *fnic);
550 void fnic_flush_tport_event_list(struct fnic *fnic);
551 int fnic_count_ioreqs_wq(struct fnic *fnic, u32 hwq, u32 portid);
552 unsigned int fnic_count_ioreqs(struct fnic *fnic, u32 portid);
553 unsigned int fnic_count_all_ioreqs(struct fnic *fnic);
554 unsigned int fnic_count_lun_ioreqs_wq(struct fnic *fnic, u32 hwq,
555 struct scsi_device *device);
556 unsigned int fnic_count_lun_ioreqs(struct fnic *fnic,
557 struct scsi_device *device);
558 void fnic_scsi_unload(struct fnic *fnic);
559 void fnic_scsi_unload_cleanup(struct fnic *fnic);
560 int fnic_get_debug_info(struct stats_debug_info *info,
561 struct fnic *fnic);
562
563 struct fnic_scsi_iter_data {
564 struct fnic *fnic;
565 void *data1;
566 void *data2;
567 bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc,
568 void *data1, void *data2);
569 };
570
571 static inline bool
fnic_io_iter_handler(struct scsi_cmnd * sc,void * iter_data)572 fnic_io_iter_handler(struct scsi_cmnd *sc, void *iter_data)
573 {
574 struct fnic_scsi_iter_data *iter = iter_data;
575
576 return iter->fn(iter->fnic, sc, iter->data1, iter->data2);
577 }
578
579 static inline void
fnic_scsi_io_iter(struct fnic * fnic,bool (* fn)(struct fnic * fnic,struct scsi_cmnd * sc,void * data1,void * data2),void * data1,void * data2)580 fnic_scsi_io_iter(struct fnic *fnic,
581 bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc,
582 void *data1, void *data2),
583 void *data1, void *data2)
584 {
585 struct fnic_scsi_iter_data iter_data = {
586 .fn = fn,
587 .fnic = fnic,
588 .data1 = data1,
589 .data2 = data2,
590 };
591 scsi_host_busy_iter(fnic->host, fnic_io_iter_handler, &iter_data);
592 }
593
594 #ifdef FNIC_DEBUG
595 static inline void
fnic_debug_dump(struct fnic * fnic,uint8_t * u8arr,int len)596 fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len)
597 {
598 int i;
599
600 for (i = 0; i < len; i = i+8) {
601 FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
602 "%d: %02x %02x %02x %02x %02x %02x %02x %02x", i / 8,
603 u8arr[i + 0], u8arr[i + 1], u8arr[i + 2], u8arr[i + 3],
604 u8arr[i + 4], u8arr[i + 5], u8arr[i + 6], u8arr[i + 7]);
605 }
606 }
607
608 static inline void
fnic_debug_dump_fc_frame(struct fnic * fnic,struct fc_frame_header * fchdr,int len,char * pfx)609 fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr,
610 int len, char *pfx)
611 {
612 uint32_t s_id, d_id;
613
614 s_id = ntoh24(fchdr->fh_s_id);
615 d_id = ntoh24(fchdr->fh_d_id);
616 FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num,
617 "%s packet contents: sid/did/type/oxid = 0x%x/0x%x/0x%x/0x%x (len = %d)\n",
618 pfx, s_id, d_id, fchdr->fh_type,
619 FNIC_STD_GET_OX_ID(fchdr), len);
620
621 fnic_debug_dump(fnic, (uint8_t *)fchdr, len);
622
623 }
624 #else /* FNIC_DEBUG */
625 static inline void
fnic_debug_dump(struct fnic * fnic,uint8_t * u8arr,int len)626 fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len) {}
627 static inline void
fnic_debug_dump_fc_frame(struct fnic * fnic,struct fc_frame_header * fchdr,uint32_t len,char * pfx)628 fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr,
629 uint32_t len, char *pfx) {}
630 #endif /* FNIC_DEBUG */
631 #endif /* _FNIC_H_ */
632