summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/bfa/bfad_drv.h
blob: 7f9ea90254cd23f6153ab7c3974abc52e3e0f6b6 (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
/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

/*
 * Contains base driver definitions.
 */

/*
 *  bfa_drv.h Linux driver data structures.
 */

#ifndef __BFAD_DRV_H__
#define __BFAD_DRV_H__

#include <linux/types.h>
#include <linux/version.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/cdev.h>
#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
#include <linux/bitops.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_transport.h>

#include "bfa_modules.h"
#include "bfa_fcs.h"
#include "bfa_defs_fcs.h"

#include "bfa_plog.h"
#include "bfa_cs.h"

#define BFAD_DRIVER_NAME	"bfa"
#ifdef BFA_DRIVER_VERSION
#define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
#else
#define BFAD_DRIVER_VERSION    "2.3.2.3"
#endif

#define BFAD_PROTO_NAME FCPI_NAME
#define BFAD_IRQ_FLAGS IRQF_SHARED

#ifndef FC_PORTSPEED_8GBIT
#define FC_PORTSPEED_8GBIT 0x10
#endif

/*
 * BFAD flags
 */
#define BFAD_MSIX_ON				0x00000001
#define BFAD_HAL_INIT_DONE			0x00000002
#define BFAD_DRV_INIT_DONE			0x00000004
#define BFAD_CFG_PPORT_DONE			0x00000008
#define BFAD_HAL_START_DONE			0x00000010
#define BFAD_PORT_ONLINE			0x00000020
#define BFAD_RPORT_ONLINE			0x00000040
#define BFAD_FCS_INIT_DONE			0x00000080
#define BFAD_HAL_INIT_FAIL			0x00000100
#define BFAD_FC4_PROBE_DONE			0x00000200
#define BFAD_PORT_DELETE			0x00000001

/*
 * BFAD related definition
 */
#define SCSI_SCAN_DELAY		HZ
#define BFAD_STOP_TIMEOUT	30
#define BFAD_SUSPEND_TIMEOUT	BFAD_STOP_TIMEOUT

/*
 * BFAD configuration parameter default values
 */
#define BFAD_LUN_QUEUE_DEPTH	32
#define BFAD_IO_MAX_SGE		SG_ALL

#define bfad_isr_t irq_handler_t

#define MAX_MSIX_ENTRY 22

struct bfad_msix_s {
	struct bfad_s *bfad;
	struct msix_entry msix;
	char name[32];
};

/*
 * Only append to the enums defined here to avoid any versioning
 * needed between trace utility and driver version
 */
enum {
	BFA_TRC_LDRV_BFAD		= 1,
	BFA_TRC_LDRV_IM			= 2,
};

enum bfad_port_pvb_type {
	BFAD_PORT_PHYS_BASE = 0,
	BFAD_PORT_PHYS_VPORT = 1,
	BFAD_PORT_VF_BASE = 2,
	BFAD_PORT_VF_VPORT = 3,
};

/*
 * PORT data structure
 */
struct bfad_port_s {
	struct list_head list_entry;
	struct bfad_s	*bfad;
	struct bfa_fcs_lport_s *fcs_port;
	u32	roles;
	s32		flags;
	u32	supported_fc4s;
	enum bfad_port_pvb_type pvb_type;
	struct bfad_im_port_s *im_port;	/* IM specific data */
	/* port debugfs specific data */
	struct dentry *port_debugfs_root;
};

/*
 * VPORT data structure
 */
struct bfad_vport_s {
	struct bfad_port_s     drv_port;
	struct bfa_fcs_vport_s fcs_vport;
	struct completion *comp_del;
	struct list_head list_entry;
};

/*
 * VF data structure
 */
struct bfad_vf_s {
	bfa_fcs_vf_t    fcs_vf;
	struct bfad_port_s    base_port;	/* base port for vf */
	struct bfad_s   *bfad;
};

struct bfad_cfg_param_s {
	u32	rport_del_timeout;
	u32	ioc_queue_depth;
	u32	lun_queue_depth;
	u32	io_max_sge;
	u32	binding_method;
};

union bfad_tmp_buf {
	/* From struct bfa_adapter_attr_s */
	char		manufacturer[BFA_ADAPTER_MFG_NAME_LEN];
	char		serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];
	char		model[BFA_ADAPTER_MODEL_NAME_LEN];
	char		fw_ver[BFA_VERSION_LEN];
	char		optrom_ver[BFA_VERSION_LEN];

	/* From struct bfa_ioc_pci_attr_s */
	u8		chip_rev[BFA_IOC_CHIP_REV_LEN];  /*  chip revision */

	wwn_t		wwn[BFA_FCS_MAX_LPORTS];
};

/*
 * BFAD (PCI function) data structure
 */
struct bfad_s {
	bfa_sm_t	sm;	/* state machine */
	struct list_head list_entry;
	struct bfa_s	bfa;
	struct bfa_fcs_s bfa_fcs;
	struct pci_dev *pcidev;
	const char *pci_name;
	struct bfa_pcidev_s hal_pcidev;
	struct bfa_ioc_pci_attr_s pci_attr;
	void __iomem   *pci_bar0_kva;
	struct completion comp;
	struct completion suspend;
	struct completion disable_comp;
	bfa_boolean_t   disable_active;
	struct bfad_port_s     pport;	/* physical port of the BFAD */
	struct bfa_meminfo_s meminfo;
	struct bfa_iocfc_cfg_s   ioc_cfg;
	u32	inst_no;	/* BFAD instance number */
	u32	bfad_flags;
	spinlock_t      bfad_lock;
	struct task_struct *bfad_tsk;
	struct bfad_cfg_param_s cfg_data;
	struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY];
	int		nvec;
	char	adapter_name[BFA_ADAPTER_SYM_NAME_LEN];
	char	port_name[BFA_ADAPTER_SYM_NAME_LEN];
	struct timer_list hal_tmo;
	unsigned long   hs_start;
	struct bfad_im_s *im;		/* IM specific data */
	struct bfa_trc_mod_s  *trcmod;
	struct bfa_plog_s      plog_buf;
	int		ref_count;
	union bfad_tmp_buf tmp_buf;
	struct fc_host_statistics link_stats;
	struct list_head pbc_vport_list;
	/* debugfs specific data */
	char *regdata;
	u32 reglen;
	struct dentry *bfad_dentry_files[5];
};

/* BFAD state machine events */
enum bfad_sm_event {
	BFAD_E_CREATE			= 1,
	BFAD_E_KTHREAD_CREATE_FAILED	= 2,
	BFAD_E_INIT			= 3,
	BFAD_E_INIT_SUCCESS		= 4,
	BFAD_E_INIT_FAILED		= 5,
	BFAD_E_INTR_INIT_FAILED		= 6,
	BFAD_E_FCS_EXIT_COMP		= 7,
	BFAD_E_EXIT_COMP		= 8,
	BFAD_E_STOP			= 9
};

/*
 * RPORT data structure
 */
struct bfad_rport_s {
	struct bfa_fcs_rport_s fcs_rport;
};

struct bfad_buf_info {
	void		*virt;
	dma_addr_t      phys;
	u32	size;
};

struct bfad_fcxp {
	struct bfad_port_s    *port;
	struct bfa_rport_s *bfa_rport;
	bfa_status_t    req_status;
	u16	tag;
	u16	rsp_len;
	u16	rsp_maxlen;
	u8		use_ireqbuf;
	u8		use_irspbuf;
	u32	num_req_sgles;
	u32	num_rsp_sgles;
	struct fchs_s	fchs;
	void		*reqbuf_info;
	void		*rspbuf_info;
	struct bfa_sge_s  *req_sge;
	struct bfa_sge_s  *rsp_sge;
	fcxp_send_cb_t  send_cbfn;
	void		*send_cbarg;
	void		*bfa_fcxp;
	struct completion comp;
};

struct bfad_hal_comp {
	bfa_status_t    status;
	struct completion comp;
};

/*
 * Macro to obtain the immediate lower power
 * of two for the integer.
 */
#define nextLowerInt(x)                         \
do {                                            \
	int __i;                                  \
	(*x)--;					\
	for (__i = 1; __i < (sizeof(int)*8); __i <<= 1) \
		(*x) = (*x) | (*x) >> __i;	\
	(*x)++;					\
	(*x) = (*x) >> 1;			\
} while (0)


#define BFA_LOG(level, bfad, mask, fmt, arg...)				\
do {									\
	if (((mask) == 4) || (level[1] <= '4'))				\
		dev_printk(level, &((bfad)->pcidev)->dev, fmt, ##arg);	\
} while (0)

bfa_status_t	bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
				  struct bfa_lport_cfg_s *port_cfg,
				  struct device *dev);
bfa_status_t	bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
			       struct bfa_lport_cfg_s *port_cfg);
bfa_status_t	bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role);
bfa_status_t	bfad_drv_init(struct bfad_s *bfad);
bfa_status_t	bfad_start_ops(struct bfad_s *bfad);
void		bfad_drv_start(struct bfad_s *bfad);
void		bfad_uncfg_pport(struct bfad_s *bfad);
void		bfad_stop(struct bfad_s *bfad);
void		bfad_fcs_stop(struct bfad_s *bfad);
void		bfad_remove_intr(struct bfad_s *bfad);
void		bfad_hal_mem_release(struct bfad_s *bfad);
void		bfad_hcb_comp(void *arg, bfa_status_t status);

int		bfad_setup_intr(struct bfad_s *bfad);
void		bfad_remove_intr(struct bfad_s *bfad);
void		bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg);
bfa_status_t	bfad_hal_mem_alloc(struct bfad_s *bfad);
void		bfad_bfa_tmo(unsigned long data);
void		bfad_init_timer(struct bfad_s *bfad);
int		bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad);
void		bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad);
void		bfad_drv_uninit(struct bfad_s *bfad);
int		bfad_worker(void *ptr);
void		bfad_debugfs_init(struct bfad_port_s *port);
void		bfad_debugfs_exit(struct bfad_port_s *port);

void bfad_pci_remove(struct pci_dev *pdev);
int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid);
void bfad_rport_online_wait(struct bfad_s *bfad);
int bfad_get_linkup_delay(struct bfad_s *bfad);
int bfad_install_msix_handler(struct bfad_s *bfad);

extern struct idr bfad_im_port_index;
extern struct pci_device_id bfad_id_table[];
extern struct list_head bfad_list;
extern char	*os_name;
extern char	*os_patch;
extern char	*host_name;
extern int	num_rports;
extern int	num_ios;
extern int	num_tms;
extern int	num_fcxps;
extern int	num_ufbufs;
extern int	reqq_size;
extern int	rspq_size;
extern int	num_sgpgs;
extern int      rport_del_timeout;
extern int      bfa_lun_queue_depth;
extern int      bfa_io_max_sge;
extern int      bfa_log_level;
extern int      ioc_auto_recover;
extern int      bfa_linkup_delay;
extern int      msix_disable_cb;
extern int      msix_disable_ct;
extern int      fdmi_enable;
extern int      supported_fc4s;
extern int	pcie_max_read_reqsz;
extern int bfa_debugfs_enable;
extern struct mutex bfad_mutex;

#endif /* __BFAD_DRV_H__ */
OpenPOWER on IntegriCloud