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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
4 * Copyright (c) 2014- QLogic Corporation.
5 * All rights reserved
6 * www.qlogic.com
7 *
8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
9 */
10
11#ifndef __BFAD_IM_H__
12#define __BFAD_IM_H__
13
14#include "bfa_fcs.h"
15
16#define FCPI_NAME " fcpim"
17
18#ifndef KOBJ_NAME_LEN
19#define KOBJ_NAME_LEN 20
20#endif
21
22bfa_status_t bfad_im_module_init(void);
23void bfad_im_module_exit(void);
24bfa_status_t bfad_im_probe(struct bfad_s *bfad);
25void bfad_im_probe_undo(struct bfad_s *bfad);
26bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
27void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
28void bfad_im_port_clean(struct bfad_im_port_s *im_port);
29int bfad_im_scsi_host_alloc(struct bfad_s *bfad,
30 struct bfad_im_port_s *im_port, struct device *dev);
31void bfad_im_scsi_host_free(struct bfad_s *bfad,
32 struct bfad_im_port_s *im_port);
33u32 bfad_im_supported_speeds(struct bfa_s *bfa);
34
35#define MAX_FCP_TARGET 1024
36#define MAX_FCP_LUN 16384
37#define BFAD_TARGET_RESET_TMO 60
38#define BFAD_LUN_RESET_TMO 60
39#define BFA_QUEUE_FULL_RAMP_UP_TIME 120
40
41/*
42 * itnim flags
43 */
44#define IO_DONE_BIT 0
45
46/**
47 * struct bfad_cmd_priv - private data per SCSI command.
48 * @status: Lowest bit represents IO_DONE. The next seven bits hold a value of
49 * type enum bfi_tskim_status.
50 * @wq: Wait queue used to wait for completion of an operation.
51 */
52struct bfad_cmd_priv {
53 unsigned long status;
54 wait_queue_head_t *wq;
55};
56
57static inline struct bfad_cmd_priv *bfad_priv(struct scsi_cmnd *cmd)
58{
59 return scsi_cmd_priv(cmd);
60}
61
62struct bfad_itnim_data_s {
63 struct bfad_itnim_s *itnim;
64};
65
66struct bfad_im_port_s {
67 struct bfad_s *bfad;
68 struct bfad_port_s *port;
69 struct work_struct port_delete_work;
70 int idr_id;
71 u16 cur_scsi_id;
72 u16 flags;
73 struct list_head binding_list;
74 struct Scsi_Host *shost;
75 struct list_head itnim_mapped_list;
76 struct fc_vport *fc_vport;
77};
78
79struct bfad_im_port_pointer {
80 struct bfad_im_port_s *p;
81};
82
83static inline struct bfad_im_port_s *bfad_get_im_port(struct Scsi_Host *host)
84{
85 struct bfad_im_port_pointer *im_portp = shost_priv(host);
86 return im_portp->p;
87}
88
89enum bfad_itnim_state {
90 ITNIM_STATE_NONE,
91 ITNIM_STATE_ONLINE,
92 ITNIM_STATE_OFFLINE_PENDING,
93 ITNIM_STATE_OFFLINE,
94 ITNIM_STATE_TIMEOUT,
95 ITNIM_STATE_FREE,
96};
97
98/*
99 * Per itnim data structure
100 */
101struct bfad_itnim_s {
102 struct list_head list_entry;
103 struct bfa_fcs_itnim_s fcs_itnim;
104 struct work_struct itnim_work;
105 u32 flags;
106 enum bfad_itnim_state state;
107 struct bfad_im_s *im;
108 struct bfad_im_port_s *im_port;
109 struct bfad_rport_s *drv_rport;
110 struct fc_rport *fc_rport;
111 struct bfa_itnim_s *bfa_itnim;
112 u16 scsi_tgt_id;
113 u16 channel;
114 u16 queue_work;
115 unsigned long last_ramp_up_time;
116 unsigned long last_queue_full_time;
117};
118
119enum bfad_binding_type {
120 FCP_PWWN_BINDING = 0x1,
121 FCP_NWWN_BINDING = 0x2,
122 FCP_FCID_BINDING = 0x3,
123};
124
125struct bfad_fcp_binding {
126 struct list_head list_entry;
127 enum bfad_binding_type binding_type;
128 u16 scsi_target_id;
129 u32 fc_id;
130 wwn_t nwwn;
131 wwn_t pwwn;
132};
133
134struct bfad_im_s {
135 struct bfad_s *bfad;
136 struct workqueue_struct *drv_workq;
137 char drv_workq_name[KOBJ_NAME_LEN];
138 struct work_struct aen_im_notify_work;
139};
140
141#define bfad_get_aen_entry(_drv, _entry) do { \
142 unsigned long _flags; \
143 spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags); \
144 bfa_q_deq(&(_drv)->free_aen_q, &(_entry)); \
145 if (_entry) \
146 list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q); \
147 spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags); \
148} while (0)
149
150/* post fc_host vendor event */
151static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry,
152 struct bfad_s *drv, int cnt,
153 enum bfa_aen_category cat,
154 int evt)
155{
156 struct timespec64 ts;
157
158 ktime_get_real_ts64(&ts);
159 /*
160 * 'unsigned long aen_tv_sec' overflows in y2106 on 32-bit
161 * architectures, or in 2038 if user space interprets it
162 * as 'signed'.
163 */
164 entry->aen_tv_sec = ts.tv_sec;
165 entry->aen_tv_usec = ts.tv_nsec / NSEC_PER_USEC;
166 entry->bfad_num = drv->inst_no;
167 entry->seq_num = cnt;
168 entry->aen_category = cat;
169 entry->aen_type = evt;
170 if (drv->bfad_flags & BFAD_FC4_PROBE_DONE)
171 queue_work(drv->im->drv_workq, &drv->im->aen_im_notify_work);
172}
173
174struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
175 struct bfad_s *);
176bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
177void bfad_destroy_workq(struct bfad_im_s *im);
178void bfad_fc_host_init(struct bfad_im_port_s *im_port);
179void bfad_scsi_host_free(struct bfad_s *bfad,
180 struct bfad_im_port_s *im_port);
181void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
182 struct scsi_device *sdev);
183void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
184struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);
185
186extern struct scsi_host_template bfad_im_scsi_host_template;
187extern struct scsi_host_template bfad_im_vport_template;
188extern struct fc_function_template bfad_im_fc_function_template;
189extern struct fc_function_template bfad_im_vport_fc_function_template;
190extern struct scsi_transport_template *bfad_im_scsi_transport_template;
191extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
192
193extern const struct attribute_group *bfad_im_host_groups[];
194extern const struct attribute_group *bfad_im_vport_groups[];
195
196irqreturn_t bfad_intx(int irq, void *dev_id);
197
198int bfad_im_bsg_request(struct bsg_job *job);
199int bfad_im_bsg_timeout(struct bsg_job *job);
200
201#endif
1/*
2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3 * All rights reserved
4 * www.brocade.com
5 *
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18#ifndef __BFAD_IM_H__
19#define __BFAD_IM_H__
20
21#include "bfa_fcs.h"
22
23#define FCPI_NAME " fcpim"
24
25#ifndef KOBJ_NAME_LEN
26#define KOBJ_NAME_LEN 20
27#endif
28
29bfa_status_t bfad_im_module_init(void);
30void bfad_im_module_exit(void);
31bfa_status_t bfad_im_probe(struct bfad_s *bfad);
32void bfad_im_probe_undo(struct bfad_s *bfad);
33bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
34void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
35void bfad_im_port_clean(struct bfad_im_port_s *im_port);
36int bfad_im_scsi_host_alloc(struct bfad_s *bfad,
37 struct bfad_im_port_s *im_port, struct device *dev);
38void bfad_im_scsi_host_free(struct bfad_s *bfad,
39 struct bfad_im_port_s *im_port);
40
41#define MAX_FCP_TARGET 1024
42#define MAX_FCP_LUN 16384
43#define BFAD_TARGET_RESET_TMO 60
44#define BFAD_LUN_RESET_TMO 60
45#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
46#define BFA_QUEUE_FULL_RAMP_UP_TIME 120
47
48/*
49 * itnim flags
50 */
51#define IO_DONE_BIT 0
52
53struct bfad_itnim_data_s {
54 struct bfad_itnim_s *itnim;
55};
56
57struct bfad_im_port_s {
58 struct bfad_s *bfad;
59 struct bfad_port_s *port;
60 struct work_struct port_delete_work;
61 int idr_id;
62 u16 cur_scsi_id;
63 u16 flags;
64 struct list_head binding_list;
65 struct Scsi_Host *shost;
66 struct list_head itnim_mapped_list;
67 struct fc_vport *fc_vport;
68};
69
70enum bfad_itnim_state {
71 ITNIM_STATE_NONE,
72 ITNIM_STATE_ONLINE,
73 ITNIM_STATE_OFFLINE_PENDING,
74 ITNIM_STATE_OFFLINE,
75 ITNIM_STATE_TIMEOUT,
76 ITNIM_STATE_FREE,
77};
78
79/*
80 * Per itnim data structure
81 */
82struct bfad_itnim_s {
83 struct list_head list_entry;
84 struct bfa_fcs_itnim_s fcs_itnim;
85 struct work_struct itnim_work;
86 u32 flags;
87 enum bfad_itnim_state state;
88 struct bfad_im_s *im;
89 struct bfad_im_port_s *im_port;
90 struct bfad_rport_s *drv_rport;
91 struct fc_rport *fc_rport;
92 struct bfa_itnim_s *bfa_itnim;
93 u16 scsi_tgt_id;
94 u16 queue_work;
95 unsigned long last_ramp_up_time;
96 unsigned long last_queue_full_time;
97};
98
99enum bfad_binding_type {
100 FCP_PWWN_BINDING = 0x1,
101 FCP_NWWN_BINDING = 0x2,
102 FCP_FCID_BINDING = 0x3,
103};
104
105struct bfad_fcp_binding {
106 struct list_head list_entry;
107 enum bfad_binding_type binding_type;
108 u16 scsi_target_id;
109 u32 fc_id;
110 wwn_t nwwn;
111 wwn_t pwwn;
112};
113
114struct bfad_im_s {
115 struct bfad_s *bfad;
116 struct workqueue_struct *drv_workq;
117 char drv_workq_name[KOBJ_NAME_LEN];
118 struct work_struct aen_im_notify_work;
119};
120
121#define bfad_get_aen_entry(_drv, _entry) do { \
122 unsigned long _flags; \
123 spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags); \
124 bfa_q_deq(&(_drv)->free_aen_q, &(_entry)); \
125 if (_entry) \
126 list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q); \
127 spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags); \
128} while (0)
129
130/* post fc_host vendor event */
131#define bfad_im_post_vendor_event(_entry, _drv, _cnt, _cat, _evt) do { \
132 do_gettimeofday(&(_entry)->aen_tv); \
133 (_entry)->bfad_num = (_drv)->inst_no; \
134 (_entry)->seq_num = (_cnt); \
135 (_entry)->aen_category = (_cat); \
136 (_entry)->aen_type = (_evt); \
137 if ((_drv)->bfad_flags & BFAD_FC4_PROBE_DONE) \
138 queue_work((_drv)->im->drv_workq, \
139 &(_drv)->im->aen_im_notify_work); \
140} while (0)
141
142struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
143 struct bfad_s *);
144bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
145void bfad_destroy_workq(struct bfad_im_s *im);
146void bfad_fc_host_init(struct bfad_im_port_s *im_port);
147void bfad_scsi_host_free(struct bfad_s *bfad,
148 struct bfad_im_port_s *im_port);
149void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
150 struct scsi_device *sdev);
151void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
152struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);
153
154extern struct scsi_host_template bfad_im_scsi_host_template;
155extern struct scsi_host_template bfad_im_vport_template;
156extern struct fc_function_template bfad_im_fc_function_template;
157extern struct fc_function_template bfad_im_vport_fc_function_template;
158extern struct scsi_transport_template *bfad_im_scsi_transport_template;
159extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
160
161extern struct device_attribute *bfad_im_host_attrs[];
162extern struct device_attribute *bfad_im_vport_attrs[];
163
164irqreturn_t bfad_intx(int irq, void *dev_id);
165
166int bfad_im_bsg_request(struct fc_bsg_job *job);
167int bfad_im_bsg_timeout(struct fc_bsg_job *job);
168
169#endif