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 | |
22 | bfa_status_t bfad_im_module_init(void); |
23 | void bfad_im_module_exit(void); |
24 | bfa_status_t bfad_im_probe(struct bfad_s *bfad); |
25 | void bfad_im_probe_undo(struct bfad_s *bfad); |
26 | bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port); |
27 | void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port); |
28 | void bfad_im_port_clean(struct bfad_im_port_s *im_port); |
29 | int bfad_im_scsi_host_alloc(struct bfad_s *bfad, |
30 | struct bfad_im_port_s *im_port, struct device *dev); |
31 | void bfad_im_scsi_host_free(struct bfad_s *bfad, |
32 | struct bfad_im_port_s *im_port); |
33 | u32 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 | */ |
52 | struct bfad_cmd_priv { |
53 | unsigned long status; |
54 | wait_queue_head_t *wq; |
55 | }; |
56 | |
57 | static inline struct bfad_cmd_priv *bfad_priv(struct scsi_cmnd *cmd) |
58 | { |
59 | return scsi_cmd_priv(cmd); |
60 | } |
61 | |
62 | struct bfad_itnim_data_s { |
63 | struct bfad_itnim_s *itnim; |
64 | }; |
65 | |
66 | struct 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 | |
79 | struct bfad_im_port_pointer { |
80 | struct bfad_im_port_s *p; |
81 | }; |
82 | |
83 | static 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(shost: host); |
86 | return im_portp->p; |
87 | } |
88 | |
89 | enum 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 | */ |
101 | struct 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 | |
119 | enum bfad_binding_type { |
120 | FCP_PWWN_BINDING = 0x1, |
121 | FCP_NWWN_BINDING = 0x2, |
122 | FCP_FCID_BINDING = 0x3, |
123 | }; |
124 | |
125 | struct 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 | |
134 | struct 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 */ |
151 | static 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(tv: &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(wq: drv->im->drv_workq, work: &drv->im->aen_im_notify_work); |
172 | } |
173 | |
174 | struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, |
175 | struct bfad_s *); |
176 | bfa_status_t bfad_thread_workq(struct bfad_s *bfad); |
177 | void bfad_destroy_workq(struct bfad_im_s *im); |
178 | void bfad_fc_host_init(struct bfad_im_port_s *im_port); |
179 | void bfad_scsi_host_free(struct bfad_s *bfad, |
180 | struct bfad_im_port_s *im_port); |
181 | void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, |
182 | struct scsi_device *sdev); |
183 | void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev); |
184 | struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id); |
185 | |
186 | extern struct scsi_host_template bfad_im_scsi_host_template; |
187 | extern struct scsi_host_template bfad_im_vport_template; |
188 | extern struct fc_function_template bfad_im_fc_function_template; |
189 | extern struct fc_function_template bfad_im_vport_fc_function_template; |
190 | extern struct scsi_transport_template *bfad_im_scsi_transport_template; |
191 | extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
192 | |
193 | extern const struct attribute_group *bfad_im_host_groups[]; |
194 | extern const struct attribute_group *bfad_im_vport_groups[]; |
195 | |
196 | irqreturn_t bfad_intx(int irq, void *dev_id); |
197 | |
198 | int bfad_im_bsg_request(struct bsg_job *job); |
199 | int bfad_im_bsg_timeout(struct bsg_job *job); |
200 | |
201 | #endif |
202 | |