summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
blob: d143a7cdbbbedeb78fa831f1930f6228cfcc7e3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
/* bnx2x_sriov.h: Broadcom Everest network driver.
 *
 * Copyright 2009-2013 Broadcom Corporation
 *
 * Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2, available
 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
 *
 * Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a
 * license other than the GPL, without Broadcom's express prior written
 * consent.
 *
 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
 * Written by: Shmulik Ravid <shmulikr@broadcom.com>
 *	       Ariel Elior <ariele@broadcom.com>
 */
#ifndef BNX2X_SRIOV_H
#define BNX2X_SRIOV_H

#include "bnx2x_vfpf.h"
#include "bnx2x.h"

enum sample_bulletin_result {
	   PFVF_BULLETIN_UNCHANGED,
	   PFVF_BULLETIN_UPDATED,
	   PFVF_BULLETIN_CRC_ERR
};

#ifdef CONFIG_BNX2X_SRIOV

/* The bnx2x device structure holds vfdb structure described below.
 * The VF array is indexed by the relative vfid.
 */
#define BNX2X_VF_MAX_QUEUES		16
#define BNX2X_VF_MAX_TPA_AGG_QUEUES	8

struct bnx2x_sriov {
	u32 first_vf_in_pf;

	/* standard SRIOV capability fields, mostly for debugging */
	int pos;		/* capability position */
	int nres;		/* number of resources */
	u32 cap;		/* SR-IOV Capabilities */
	u16 ctrl;		/* SR-IOV Control */
	u16 total;		/* total VFs associated with the PF */
	u16 initial;		/* initial VFs associated with the PF */
	u16 nr_virtfn;		/* number of VFs available */
	u16 offset;		/* first VF Routing ID offset */
	u16 stride;		/* following VF stride */
	u32 pgsz;		/* page size for BAR alignment */
	u8 link;		/* Function Dependency Link */
};

/* bars */
struct bnx2x_vf_bar {
	u64 bar;
	u32 size;
};

struct bnx2x_vf_bar_info {
	struct bnx2x_vf_bar bars[PCI_SRIOV_NUM_BARS];
	u8 nr_bars;
};

/* vf queue (used both for rx or tx) */
struct bnx2x_vf_queue {
	struct eth_context		*cxt;

	/* MACs object */
	struct bnx2x_vlan_mac_obj	mac_obj;

	/* VLANs object */
	struct bnx2x_vlan_mac_obj	vlan_obj;
	atomic_t vlan_count;		/* 0 means vlan-0 is set  ~ untagged */

	/* Queue Slow-path State object */
	struct bnx2x_queue_sp_obj	sp_obj;

	u32 cid;
	u16 index;
	u16 sb_idx;
};

/* struct bnx2x_vfop_qctor_params - prepare queue construction parameters:
 * q-init, q-setup and SB index
 */
struct bnx2x_vfop_qctor_params {
	struct bnx2x_queue_state_params		qstate;
	struct bnx2x_queue_setup_params		prep_qsetup;
};

/* VFOP parameters (one copy per VF) */
union bnx2x_vfop_params {
	struct bnx2x_vlan_mac_ramrod_params	vlan_mac;
	struct bnx2x_rx_mode_ramrod_params	rx_mode;
	struct bnx2x_mcast_ramrod_params	mcast;
	struct bnx2x_config_rss_params		rss;
	struct bnx2x_vfop_qctor_params		qctor;
};

/* forward */
struct bnx2x_virtf;

/* VFOP definitions */
typedef void (*vfop_handler_t)(struct bnx2x *bp, struct bnx2x_virtf *vf);

struct bnx2x_vfop_cmd {
	vfop_handler_t done;
	bool block;
};

/* VFOP queue filters command additional arguments */
struct bnx2x_vfop_filter {
	struct list_head link;
	int type;
#define BNX2X_VFOP_FILTER_MAC	1
#define BNX2X_VFOP_FILTER_VLAN	2

	bool add;
	u8 *mac;
	u16 vid;
};

struct bnx2x_vfop_filters {
	int add_cnt;
	struct list_head head;
	struct bnx2x_vfop_filter filters[];
};

/* transient list allocated, built and saved until its
 * passed to the SP-VERBs layer.
 */
struct bnx2x_vfop_args_mcast {
	int mc_num;
	struct bnx2x_mcast_list_elem *mc;
};

struct bnx2x_vfop_args_qctor {
	int	qid;
	u16	sb_idx;
};

struct bnx2x_vfop_args_qdtor {
	int	qid;
	struct eth_context *cxt;
};

struct bnx2x_vfop_args_defvlan {
	int	qid;
	bool	enable;
	u16	vid;
	u8	prio;
};

struct bnx2x_vfop_args_qx {
	int	qid;
	bool	en_add;
};

struct bnx2x_vfop_args_filters {
	struct bnx2x_vfop_filters *multi_filter;
	atomic_t *credit;	/* non NULL means 'don't consume credit' */
};

union bnx2x_vfop_args {
	struct bnx2x_vfop_args_mcast	mc_list;
	struct bnx2x_vfop_args_qctor	qctor;
	struct bnx2x_vfop_args_qdtor	qdtor;
	struct bnx2x_vfop_args_defvlan	defvlan;
	struct bnx2x_vfop_args_qx	qx;
	struct bnx2x_vfop_args_filters	filters;
};

struct bnx2x_vfop {
	struct list_head link;
	int			rc;		/* return code */
	int			state;		/* next state */
	union bnx2x_vfop_args	args;		/* extra arguments */
	union bnx2x_vfop_params *op_p;		/* ramrod params */

	/* state machine callbacks */
	vfop_handler_t transition;
	vfop_handler_t done;
};

/* vf context */
struct bnx2x_virtf {
	u16 cfg_flags;
#define VF_CFG_STATS		0x0001
#define VF_CFG_FW_FC		0x0002
#define VF_CFG_TPA		0x0004
#define VF_CFG_INT_SIMD		0x0008
#define VF_CACHE_LINE		0x0010
#define VF_CFG_VLAN		0x0020

	u8 state;
#define VF_FREE		0	/* VF ready to be acquired holds no resc */
#define VF_ACQUIRED	1	/* VF acquired, but not initialized */
#define VF_ENABLED	2	/* VF Enabled */
#define VF_RESET	3	/* VF FLR'd, pending cleanup */

	/* non 0 during flr cleanup */
	u8 flr_clnup_stage;
#define VF_FLR_CLN	1	/* reclaim resources and do 'final cleanup'
				 * sans the end-wait
				 */
#define VF_FLR_ACK	2	/* ACK flr notification */
#define VF_FLR_EPILOG	3	/* wait for VF remnants to dissipate in the HW
				 * ~ final cleanup' end wait
				 */

	/* dma */
	dma_addr_t fw_stat_map;		/* valid iff VF_CFG_STATS */
	dma_addr_t spq_map;
	dma_addr_t bulletin_map;

	/* Allocated resources counters. Before the VF is acquired, the
	 * counters hold the following values:
	 *
	 * - xxq_count = 0 as the queues memory is not allocated yet.
	 *
	 * - sb_count  = The number of status blocks configured for this VF in
	 *		 the IGU CAM. Initially read during probe.
	 *
	 * - xx_rules_count = The number of rules statically and equally
	 *		      allocated for each VF, during PF load.
	 */
	struct vf_pf_resc_request	alloc_resc;
#define vf_rxq_count(vf)		((vf)->alloc_resc.num_rxqs)
#define vf_txq_count(vf)		((vf)->alloc_resc.num_txqs)
#define vf_sb_count(vf)			((vf)->alloc_resc.num_sbs)
#define vf_mac_rules_cnt(vf)		((vf)->alloc_resc.num_mac_filters)
#define vf_vlan_rules_cnt(vf)		((vf)->alloc_resc.num_vlan_filters)
#define vf_mc_rules_cnt(vf)		((vf)->alloc_resc.num_mc_filters)

	u8 sb_count;	/* actual number of SBs */
	u8 igu_base_id;	/* base igu status block id */

	struct bnx2x_vf_queue	*vfqs;
#define bnx2x_vfq(vf, nr, var)	((vf)->vfqs[(nr)].var)

	u8 index;	/* index in the vf array */
	u8 abs_vfid;
	u8 sp_cl_id;
	u32 error;	/* 0 means all's-well */

	/* BDF */
	unsigned int bus;
	unsigned int devfn;

	/* bars */
	struct bnx2x_vf_bar bars[PCI_SRIOV_NUM_BARS];

	/* set-mac ramrod state 1-pending, 0-done */
	unsigned long	filter_state;

	/* leading rss client id ~~ the client id of the first rxq, must be
	 * set for each txq.
	 */
	int leading_rss;

	/* MCAST object */
	struct bnx2x_mcast_obj		mcast_obj;

	/* RSS configuration object */
	struct bnx2x_rss_config_obj     rss_conf_obj;

	/* slow-path operations */
	atomic_t			op_in_progress;
	int				op_rc;
	bool				op_wait_blocking;
	struct list_head		op_list_head;
	union bnx2x_vfop_params		op_params;
	struct mutex			op_mutex; /* one vfop at a time mutex */
	enum channel_tlvs		op_current;
};

#define BNX2X_NR_VIRTFN(bp)	((bp)->vfdb->sriov.nr_virtfn)

#define for_each_vf(bp, var) \
		for ((var) = 0; (var) < BNX2X_NR_VIRTFN(bp); (var)++)

#define for_each_vfq(vf, var) \
		for ((var) = 0; (var) < vf_rxq_count(vf); (var)++)

#define for_each_vf_sb(vf, var) \
		for ((var) = 0; (var) < vf_sb_count(vf); (var)++)

#define is_vf_multi(vf)	(vf_rxq_count(vf) > 1)

#define HW_VF_HANDLE(bp, abs_vfid) \
	(u16)(BP_ABS_FUNC((bp)) | (1<<3) |  ((u16)(abs_vfid) << 4))

#define FW_PF_MAX_HANDLE	8

#define FW_VF_HANDLE(abs_vfid)	\
	(abs_vfid + FW_PF_MAX_HANDLE)

/* locking and unlocking the channel mutex */
void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
			      enum channel_tlvs tlv);

void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
				enum channel_tlvs expected_tlv);

/* VF mail box (aka vf-pf channel) */

/* a container for the bi-directional vf<-->pf messages.
 *  The actual response will be placed according to the offset parameter
 *  provided in the request
 */

#define MBX_MSG_ALIGN	8
#define MBX_MSG_ALIGNED_SIZE	(roundup(sizeof(struct bnx2x_vf_mbx_msg), \
				MBX_MSG_ALIGN))

struct bnx2x_vf_mbx_msg {
	union vfpf_tlvs req;
	union pfvf_tlvs resp;
};

struct bnx2x_vf_mbx {
	struct bnx2x_vf_mbx_msg *msg;
	dma_addr_t msg_mapping;

	/* VF GPA address */
	u32 vf_addr_lo;
	u32 vf_addr_hi;

	struct vfpf_first_tlv first_tlv;	/* saved VF request header */

	u8 flags;
#define VF_MSG_INPROCESS	0x1	/* failsafe - the FW should prevent
					 * more then one pending msg
					 */
};

struct bnx2x_vf_sp {
	union {
		struct eth_classify_rules_ramrod_data	e2;
	} mac_rdata;

	union {
		struct eth_classify_rules_ramrod_data	e2;
	} vlan_rdata;

	union {
		struct eth_filter_rules_ramrod_data	e2;
	} rx_mode_rdata;

	union {
		struct eth_multicast_rules_ramrod_data  e2;
	} mcast_rdata;

	union {
		struct client_init_ramrod_data  init_data;
		struct client_update_ramrod_data update_data;
	} q_data;
};

struct hw_dma {
	void *addr;
	dma_addr_t mapping;
	size_t size;
};

struct bnx2x_vfdb {
#define BP_VFDB(bp)		((bp)->vfdb)
	/* vf array */
	struct bnx2x_virtf	*vfs;
#define BP_VF(bp, idx)		(&((bp)->vfdb->vfs[(idx)]))
#define bnx2x_vf(bp, idx, var)	((bp)->vfdb->vfs[(idx)].var)

	/* queue array - for all vfs */
	struct bnx2x_vf_queue *vfqs;

	/* vf HW contexts */
	struct hw_dma		context[BNX2X_VF_CIDS/ILT_PAGE_CIDS];
#define	BP_VF_CXT_PAGE(bp, i)	(&(bp)->vfdb->context[(i)])

	/* SR-IOV information */
	struct bnx2x_sriov	sriov;
	struct hw_dma		mbx_dma;
#define BP_VF_MBX_DMA(bp)	(&((bp)->vfdb->mbx_dma))
	struct bnx2x_vf_mbx	mbxs[BNX2X_MAX_NUM_OF_VFS];
#define BP_VF_MBX(bp, vfid)	(&((bp)->vfdb->mbxs[(vfid)]))

	struct hw_dma		bulletin_dma;
#define BP_VF_BULLETIN_DMA(bp)	(&((bp)->vfdb->bulletin_dma))
#define	BP_VF_BULLETIN(bp, vf) \
	(((struct pf_vf_bulletin_content *)(BP_VF_BULLETIN_DMA(bp)->addr)) \
	 + (vf))

	struct hw_dma		sp_dma;
#define bnx2x_vf_sp(bp, vf, field) ((bp)->vfdb->sp_dma.addr +		\
		(vf)->index * sizeof(struct bnx2x_vf_sp) +		\
		offsetof(struct bnx2x_vf_sp, field))
#define bnx2x_vf_sp_map(bp, vf, field) ((bp)->vfdb->sp_dma.mapping +	\
		(vf)->index * sizeof(struct bnx2x_vf_sp) +		\
		offsetof(struct bnx2x_vf_sp, field))

#define FLRD_VFS_DWORDS (BNX2X_MAX_NUM_OF_VFS / 32)
	u32 flrd_vfs[FLRD_VFS_DWORDS];
};

/* queue access */
static inline struct bnx2x_vf_queue *vfq_get(struct bnx2x_virtf *vf, u8 index)
{
	return &(vf->vfqs[index]);
}

static inline bool vfq_is_leading(struct bnx2x_vf_queue *vfq)
{
	return (vfq->index == 0);
}

/* FW ids */
static inline u8 vf_igu_sb(struct bnx2x_virtf *vf, u16 sb_idx)
{
	return vf->igu_base_id + sb_idx;
}

static inline u8 vf_hc_qzone(struct bnx2x_virtf *vf, u16 sb_idx)
{
	return vf_igu_sb(vf, sb_idx);
}

static u8 vfq_cl_id(struct bnx2x_virtf *vf, struct bnx2x_vf_queue *q)
{
	return vf->igu_base_id + q->index;
}

static inline u8 vfq_stat_id(struct bnx2x_virtf *vf, struct bnx2x_vf_queue *q)
{
	return vfq_cl_id(vf, q);
}

static inline u8 vfq_qzone_id(struct bnx2x_virtf *vf, struct bnx2x_vf_queue *q)
{
	return vfq_cl_id(vf, q);
}

/* global iov routines */
int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line);
int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, int num_vfs_param);
void bnx2x_iov_remove_one(struct bnx2x *bp);
void bnx2x_iov_free_mem(struct bnx2x *bp);
int bnx2x_iov_alloc_mem(struct bnx2x *bp);
int bnx2x_iov_nic_init(struct bnx2x *bp);
int bnx2x_iov_chip_cleanup(struct bnx2x *bp);
void bnx2x_iov_init_dq(struct bnx2x *bp);
void bnx2x_iov_init_dmae(struct bnx2x *bp);
void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
				struct bnx2x_queue_sp_obj **q_obj);
void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work);
int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem);
void bnx2x_iov_adjust_stats_req(struct bnx2x *bp);
void bnx2x_iov_storm_stats_update(struct bnx2x *bp);
void bnx2x_iov_sp_task(struct bnx2x *bp);
/* global vf mailbox routines */
void bnx2x_vf_mbx(struct bnx2x *bp, struct vf_pf_event_data *vfpf_event);
void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid);

/* CORE VF API */
typedef u8 bnx2x_mac_addr_t[ETH_ALEN];

/* acquire */
int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
		     struct vf_pf_resc_request *resc);
/* init */
int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
		  dma_addr_t *sb_map);

/* VFOP generic helpers */
#define bnx2x_vfop_default(state) do {				\
		BNX2X_ERR("Bad state %d\n", (state));		\
		vfop->rc = -EINVAL;				\
		goto op_err;					\
	} while (0)

enum {
	VFOP_DONE,
	VFOP_CONT,
	VFOP_VERIFY_PEND,
};

#define bnx2x_vfop_finalize(vf, rc, next) do {				\
		if ((rc) < 0)						\
			goto op_err;					\
		else if ((rc) > 0)					\
			goto op_pending;				\
		else if ((next) == VFOP_DONE)				\
			goto op_done;					\
		else if ((next) == VFOP_VERIFY_PEND)			\
			BNX2X_ERR("expected pending\n");		\
		else {							\
			DP(BNX2X_MSG_IOV, "no ramrod. Scheduling\n");	\
			atomic_set(&vf->op_in_progress, 1);		\
			queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);  \
			return;						\
		}							\
	} while (0)

#define bnx2x_vfop_opset(first_state, trans_hndlr, done_hndlr)		\
	do {								\
		vfop->state = first_state;				\
		vfop->op_p = &vf->op_params;				\
		vfop->transition = trans_hndlr;				\
		vfop->done = done_hndlr;				\
	} while (0)

static inline struct bnx2x_vfop *bnx2x_vfop_cur(struct bnx2x *bp,
						struct bnx2x_virtf *vf)
{
	WARN(!mutex_is_locked(&vf->op_mutex), "about to access vf op linked list but mutex was not locked!");
	WARN_ON(list_empty(&vf->op_list_head));
	return list_first_entry(&vf->op_list_head, struct bnx2x_vfop, link);
}

static inline struct bnx2x_vfop *bnx2x_vfop_add(struct bnx2x *bp,
						struct bnx2x_virtf *vf)
{
	struct bnx2x_vfop *vfop = kzalloc(sizeof(*vfop), GFP_KERNEL);

	WARN(!mutex_is_locked(&vf->op_mutex), "about to access vf op linked list but mutex was not locked!");
	if (vfop) {
		INIT_LIST_HEAD(&vfop->link);
		list_add(&vfop->link, &vf->op_list_head);
	}
	return vfop;
}

static inline void bnx2x_vfop_end(struct bnx2x *bp, struct bnx2x_virtf *vf,
				  struct bnx2x_vfop *vfop)
{
	/* rc < 0 - error, otherwise set to 0 */
	DP(BNX2X_MSG_IOV, "rc was %d\n", vfop->rc);
	if (vfop->rc >= 0)
		vfop->rc = 0;
	DP(BNX2X_MSG_IOV, "rc is now %d\n", vfop->rc);

	/* unlink the current op context and propagate error code
	 * must be done before invoking the 'done()' handler
	 */
	WARN(!mutex_is_locked(&vf->op_mutex),
	     "about to access vf op linked list but mutex was not locked!");
	list_del(&vfop->link);

	if (list_empty(&vf->op_list_head)) {
		DP(BNX2X_MSG_IOV, "list was empty %d\n", vfop->rc);
		vf->op_rc = vfop->rc;
		DP(BNX2X_MSG_IOV, "copying rc vf->op_rc %d,  vfop->rc %d\n",
		   vf->op_rc, vfop->rc);
	} else {
		struct bnx2x_vfop *cur_vfop;

		DP(BNX2X_MSG_IOV, "list not empty %d\n", vfop->rc);
		cur_vfop = bnx2x_vfop_cur(bp, vf);
		cur_vfop->rc = vfop->rc;
		DP(BNX2X_MSG_IOV, "copying rc vf->op_rc %d, vfop->rc %d\n",
		   vf->op_rc, vfop->rc);
	}

	/* invoke done handler */
	if (vfop->done) {
		DP(BNX2X_MSG_IOV, "calling done handler\n");
		vfop->done(bp, vf);
	} else {
		/* there is no done handler for the operation to unlock
		 * the mutex. Must have gotten here from PF initiated VF RELEASE
		 */
		bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF);
	}

	DP(BNX2X_MSG_IOV, "done handler complete. vf->op_rc %d, vfop->rc %d\n",
	   vf->op_rc, vfop->rc);

	/* if this is the last nested op reset the wait_blocking flag
	 * to release any blocking wrappers, only after 'done()' is invoked
	 */
	if (list_empty(&vf->op_list_head)) {
		DP(BNX2X_MSG_IOV, "list was empty after done %d\n", vfop->rc);
		vf->op_wait_blocking = false;
	}

	kfree(vfop);
}

static inline int bnx2x_vfop_wait_blocking(struct bnx2x *bp,
					   struct bnx2x_virtf *vf)
{
	/* can take a while if any port is running */
	int cnt = 5000;

	might_sleep();
	while (cnt--) {
		if (vf->op_wait_blocking == false) {
#ifdef BNX2X_STOP_ON_ERROR
			DP(BNX2X_MSG_IOV, "exit  (cnt %d)\n", 5000 - cnt);
#endif
			return 0;
		}
		usleep_range(1000, 2000);

		if (bp->panic)
			return -EIO;
	}

	/* timeout! */
#ifdef BNX2X_STOP_ON_ERROR
	bnx2x_panic();
#endif

	return -EBUSY;
}

static inline int bnx2x_vfop_transition(struct bnx2x *bp,
					struct bnx2x_virtf *vf,
					vfop_handler_t transition,
					bool block)
{
	if (block)
		vf->op_wait_blocking = true;
	transition(bp, vf);
	if (block)
		return bnx2x_vfop_wait_blocking(bp, vf);
	return 0;
}

/* VFOP queue construction helpers */
void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf,
			    struct bnx2x_queue_init_params *init_params,
			    struct bnx2x_queue_setup_params *setup_params,
			    u16 q_idx, u16 sb_idx);

void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf,
			    struct bnx2x_queue_init_params *init_params,
			    struct bnx2x_queue_setup_params *setup_params,
			    u16 q_idx, u16 sb_idx);

void bnx2x_vfop_qctor_prep(struct bnx2x *bp,
			   struct bnx2x_virtf *vf,
			   struct bnx2x_vf_queue *q,
			   struct bnx2x_vfop_qctor_params *p,
			   unsigned long q_type);
int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
			    struct bnx2x_virtf *vf,
			    struct bnx2x_vfop_cmd *cmd,
			    struct bnx2x_vfop_filters *macs,
			    int qid, bool drv_only);

int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
			    struct bnx2x_virtf *vf,
			    struct bnx2x_vfop_cmd *cmd,
			    int qid, u16 vid, bool add);

int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp,
			     struct bnx2x_virtf *vf,
			     struct bnx2x_vfop_cmd *cmd,
			     struct bnx2x_vfop_filters *vlans,
			     int qid, bool drv_only);

int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp,
			  struct bnx2x_virtf *vf,
			  struct bnx2x_vfop_cmd *cmd,
			  int qid);

int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
			 struct bnx2x_virtf *vf,
			 struct bnx2x_vfop_cmd *cmd,
			 int qid);

int bnx2x_vfop_mcast_cmd(struct bnx2x *bp,
			 struct bnx2x_virtf *vf,
			 struct bnx2x_vfop_cmd *cmd,
			 bnx2x_mac_addr_t *mcasts,
			 int mcast_num, bool drv_only);

int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp,
			  struct bnx2x_virtf *vf,
			  struct bnx2x_vfop_cmd *cmd,
			  int qid, unsigned long accept_flags);

int bnx2x_vfop_close_cmd(struct bnx2x *bp,
			 struct bnx2x_virtf *vf,
			 struct bnx2x_vfop_cmd *cmd);

int bnx2x_vfop_release_cmd(struct bnx2x *bp,
			   struct bnx2x_virtf *vf,
			   struct bnx2x_vfop_cmd *cmd);

/* VF release ~ VF close + VF release-resources
 *
 * Release is the ultimate SW shutdown and is called whenever an
 * irrecoverable error is encountered.
 */
void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block);
int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid);
u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf);

/* FLR routines */

/* VF FLR helpers */
int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid);
void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid);

/* Handles an FLR (or VF_DISABLE) notification form the MCP */
void bnx2x_vf_handle_flr_event(struct bnx2x *bp);

void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list, u16 offset, u16 type,
		   u16 length);
void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv,
		     u16 type, u16 length);
void bnx2x_vfpf_finalize(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv);
void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list);

bool bnx2x_tlv_supported(u16 tlvtype);

u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
			  struct pf_vf_bulletin_content *bulletin);
int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf);

enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);

/* VF side vfpf channel functions */
int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count);
int bnx2x_vfpf_release(struct bnx2x *bp);
int bnx2x_vfpf_release(struct bnx2x *bp);
int bnx2x_vfpf_init(struct bnx2x *bp);
void bnx2x_vfpf_close_vf(struct bnx2x *bp);
int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx);
int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx);
int bnx2x_vfpf_config_mac(struct bnx2x *bp, u8 *addr, u8 vf_qid, bool set);
int bnx2x_vfpf_set_mcast(struct net_device *dev);
int bnx2x_vfpf_storm_rx_mode(struct bnx2x *bp);

static inline void bnx2x_vf_fill_fw_str(struct bnx2x *bp, char *buf,
					size_t buf_len)
{
	strlcpy(buf, bp->acquire_resp.pfdev_info.fw_ver, buf_len);
}

static inline int bnx2x_vf_ustorm_prods_offset(struct bnx2x *bp,
					       struct bnx2x_fastpath *fp)
{
	return PXP_VF_ADDR_USDM_QUEUES_START +
		bp->acquire_resp.resc.hw_qid[fp->index] *
		sizeof(struct ustorm_queue_zone_data);
}

enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);
void bnx2x_timer_sriov(struct bnx2x *bp);
void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp);
int bnx2x_vf_pci_alloc(struct bnx2x *bp);
int bnx2x_enable_sriov(struct bnx2x *bp);
void bnx2x_disable_sriov(struct bnx2x *bp);
static inline int bnx2x_vf_headroom(struct bnx2x *bp)
{
	return bp->vfdb->sriov.nr_virtfn * BNX2X_CLIENTS_PER_VF;
}
void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp);
int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs);
void bnx2x_iov_channel_down(struct bnx2x *bp);
int bnx2x_open_epilog(struct bnx2x *bp);

#else /* CONFIG_BNX2X_SRIOV */

static inline void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
				struct bnx2x_queue_sp_obj **q_obj) {}
static inline void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid,
				      bool queue_work) {}
static inline void bnx2x_vf_handle_flr_event(struct bnx2x *bp) {}
static inline int bnx2x_iov_eq_sp_event(struct bnx2x *bp,
					union event_ring_elem *elem) {return 1; }
static inline void bnx2x_iov_sp_task(struct bnx2x *bp) {}
static inline void bnx2x_vf_mbx(struct bnx2x *bp,
				struct vf_pf_event_data *vfpf_event) {}
static inline int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line) {return line; }
static inline void bnx2x_iov_init_dq(struct bnx2x *bp) {}
static inline int bnx2x_iov_alloc_mem(struct bnx2x *bp) {return 0; }
static inline void bnx2x_iov_free_mem(struct bnx2x *bp) {}
static inline int bnx2x_iov_chip_cleanup(struct bnx2x *bp) {return 0; }
static inline void bnx2x_iov_init_dmae(struct bnx2x *bp) {}
static inline int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
				     int num_vfs_param) {return 0; }
static inline void bnx2x_iov_remove_one(struct bnx2x *bp) {}
static inline int bnx2x_enable_sriov(struct bnx2x *bp) {return 0; }
static inline void bnx2x_disable_sriov(struct bnx2x *bp) {}
static inline int bnx2x_vfpf_acquire(struct bnx2x *bp,
				     u8 tx_count, u8 rx_count) {return 0; }
static inline int bnx2x_vfpf_release(struct bnx2x *bp) {return 0; }
static inline int bnx2x_vfpf_init(struct bnx2x *bp) {return 0; }
static inline void bnx2x_vfpf_close_vf(struct bnx2x *bp) {}
static inline int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx) {return 0; }
static inline int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx) {return 0; }
static inline int bnx2x_vfpf_config_mac(struct bnx2x *bp, u8 *addr,
					u8 vf_qid, bool set) {return 0; }
static inline int bnx2x_vfpf_set_mcast(struct net_device *dev) {return 0; }
static inline int bnx2x_vfpf_storm_rx_mode(struct bnx2x *bp) {return 0; }
static inline int bnx2x_iov_nic_init(struct bnx2x *bp) {return 0; }
static inline int bnx2x_vf_headroom(struct bnx2x *bp) {return 0; }
static inline void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) {}
static inline void bnx2x_vf_fill_fw_str(struct bnx2x *bp, char *buf,
					size_t buf_len) {}
static inline int bnx2x_vf_ustorm_prods_offset(struct bnx2x *bp,
					       struct bnx2x_fastpath *fp) {return 0; }
static inline enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
{
	return PFVF_BULLETIN_UNCHANGED;
}
static inline void bnx2x_timer_sriov(struct bnx2x *bp) {}

static inline void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
{
	return NULL;
}

static inline int bnx2x_vf_pci_alloc(struct bnx2x *bp) {return 0; }
static inline void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) {}
static inline int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs) {return 0; }
static inline void bnx2x_iov_channel_down(struct bnx2x *bp) {}
static inline int bnx2x_open_epilog(struct bnx2x *bp) {return 0; }

#endif /* CONFIG_BNX2X_SRIOV */
#endif /* bnx2x_sriov.h */
OpenPOWER on IntegriCloud