2 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
3 * Copyright (c) 2014- QLogic Corporation.
7 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License (GPL) Version 2 as
11 * published by the Free Software Foundation
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
24 #define FCPI_NAME " fcpim"
27 #define KOBJ_NAME_LEN 20
30 bfa_status_t bfad_im_module_init(void);
31 void bfad_im_module_exit(void);
32 bfa_status_t bfad_im_probe(struct bfad_s *bfad);
33 void bfad_im_probe_undo(struct bfad_s *bfad);
34 bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
35 void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
36 void bfad_im_port_clean(struct bfad_im_port_s *im_port);
37 int bfad_im_scsi_host_alloc(struct bfad_s *bfad,
38 struct bfad_im_port_s *im_port, struct device *dev);
39 void bfad_im_scsi_host_free(struct bfad_s *bfad,
40 struct bfad_im_port_s *im_port);
41 u32 bfad_im_supported_speeds(struct bfa_s *bfa);
43 #define MAX_FCP_TARGET 1024
44 #define MAX_FCP_LUN 16384
45 #define BFAD_TARGET_RESET_TMO 60
46 #define BFAD_LUN_RESET_TMO 60
47 #define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
48 #define BFA_QUEUE_FULL_RAMP_UP_TIME 120
55 struct bfad_itnim_data_s {
56 struct bfad_itnim_s *itnim;
59 struct bfad_im_port_s {
61 struct bfad_port_s *port;
62 struct work_struct port_delete_work;
66 struct list_head binding_list;
67 struct Scsi_Host *shost;
68 struct list_head itnim_mapped_list;
69 struct fc_vport *fc_vport;
72 struct bfad_im_port_pointer {
73 struct bfad_im_port_s *p;
76 static inline struct bfad_im_port_s *bfad_get_im_port(struct Scsi_Host *host)
78 struct bfad_im_port_pointer *im_portp = shost_priv(host);
82 enum bfad_itnim_state {
85 ITNIM_STATE_OFFLINE_PENDING,
92 * Per itnim data structure
95 struct list_head list_entry;
96 struct bfa_fcs_itnim_s fcs_itnim;
97 struct work_struct itnim_work;
99 enum bfad_itnim_state state;
100 struct bfad_im_s *im;
101 struct bfad_im_port_s *im_port;
102 struct bfad_rport_s *drv_rport;
103 struct fc_rport *fc_rport;
104 struct bfa_itnim_s *bfa_itnim;
108 unsigned long last_ramp_up_time;
109 unsigned long last_queue_full_time;
112 enum bfad_binding_type {
113 FCP_PWWN_BINDING = 0x1,
114 FCP_NWWN_BINDING = 0x2,
115 FCP_FCID_BINDING = 0x3,
118 struct bfad_fcp_binding {
119 struct list_head list_entry;
120 enum bfad_binding_type binding_type;
129 struct workqueue_struct *drv_workq;
130 char drv_workq_name[KOBJ_NAME_LEN];
131 struct work_struct aen_im_notify_work;
134 #define bfad_get_aen_entry(_drv, _entry) do { \
135 unsigned long _flags; \
136 spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags); \
137 bfa_q_deq(&(_drv)->free_aen_q, &(_entry)); \
139 list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q); \
140 spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags); \
143 /* post fc_host vendor event */
144 static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry,
145 struct bfad_s *drv, int cnt,
146 enum bfa_aen_category cat,
147 enum bfa_ioc_aen_event evt)
149 struct timespec64 ts;
151 ktime_get_real_ts64(&ts);
153 * 'unsigned long aen_tv_sec' overflows in y2106 on 32-bit
154 * architectures, or in 2038 if user space interprets it
157 entry->aen_tv_sec = ts.tv_sec;
158 entry->aen_tv_usec = ts.tv_nsec / NSEC_PER_USEC;
159 entry->bfad_num = drv->inst_no;
160 entry->seq_num = cnt;
161 entry->aen_category = cat;
162 entry->aen_type = evt;
163 if (drv->bfad_flags & BFAD_FC4_PROBE_DONE)
164 queue_work(drv->im->drv_workq, &drv->im->aen_im_notify_work);
167 struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
169 bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
170 void bfad_destroy_workq(struct bfad_im_s *im);
171 void bfad_fc_host_init(struct bfad_im_port_s *im_port);
172 void bfad_scsi_host_free(struct bfad_s *bfad,
173 struct bfad_im_port_s *im_port);
174 void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
175 struct scsi_device *sdev);
176 void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
177 struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);
179 extern struct scsi_host_template bfad_im_scsi_host_template;
180 extern struct scsi_host_template bfad_im_vport_template;
181 extern struct fc_function_template bfad_im_fc_function_template;
182 extern struct fc_function_template bfad_im_vport_fc_function_template;
183 extern struct scsi_transport_template *bfad_im_scsi_transport_template;
184 extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
186 extern struct device_attribute *bfad_im_host_attrs[];
187 extern struct device_attribute *bfad_im_vport_attrs[];
189 irqreturn_t bfad_intx(int irq, void *dev_id);
191 int bfad_im_bsg_request(struct bsg_job *job);
192 int bfad_im_bsg_timeout(struct bsg_job *job);
195 * Macro to set the SCSI device sdev_bflags - sdev_bflags are used by the
196 * SCSI mid-layer to choose LUN Scanning mode REPORT_LUNS vs. Sequential Scan
198 * Internally iterate's over all the ITNIM's part of the im_port & set's the
199 * sdev_bflags for the scsi_device associated with LUN #0.
201 #define bfad_reset_sdev_bflags(__im_port, __lunmask_cfg) do { \
202 struct scsi_device *__sdev = NULL; \
203 struct bfad_itnim_s *__itnim = NULL; \
204 u32 scan_flags = BLIST_NOREPORTLUN | BLIST_SPARSELUN; \
205 list_for_each_entry(__itnim, &((__im_port)->itnim_mapped_list), \
207 __sdev = scsi_device_lookup((__im_port)->shost, \
209 __itnim->scsi_tgt_id, 0); \
211 if ((__lunmask_cfg) == BFA_TRUE) \
212 __sdev->sdev_bflags |= scan_flags; \
214 __sdev->sdev_bflags &= ~scan_flags; \
215 scsi_device_put(__sdev); \