Merge branch 'mw-3.1-jul25' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / bfa / bfad_im.h
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
29 bfa_status_t bfad_im_module_init(void);
30 void bfad_im_module_exit(void);
31 bfa_status_t bfad_im_probe(struct bfad_s *bfad);
32 void bfad_im_probe_undo(struct bfad_s *bfad);
33 bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
34 void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
35 void bfad_im_port_clean(struct bfad_im_port_s *im_port);
36 int bfad_im_scsi_host_alloc(struct bfad_s *bfad,
37 struct bfad_im_port_s *im_port, struct device *dev);
38 void 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
53 struct bfad_itnim_data_s {
54 struct bfad_itnim_s *itnim;
55 };
56
57 struct 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
70 enum 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 */
82 struct 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
99 enum bfad_binding_type {
100 FCP_PWWN_BINDING = 0x1,
101 FCP_NWWN_BINDING = 0x2,
102 FCP_FCID_BINDING = 0x3,
103 };
104
105 struct 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
114 struct bfad_im_s {
115 struct bfad_s *bfad;
116 struct workqueue_struct *drv_workq;
117 char drv_workq_name[KOBJ_NAME_LEN];
118 };
119
120 struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
121 struct bfad_s *);
122 bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
123 void bfad_destroy_workq(struct bfad_im_s *im);
124 void bfad_fc_host_init(struct bfad_im_port_s *im_port);
125 void bfad_scsi_host_free(struct bfad_s *bfad,
126 struct bfad_im_port_s *im_port);
127 void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
128 struct scsi_device *sdev);
129 void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
130 struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);
131
132 extern struct scsi_host_template bfad_im_scsi_host_template;
133 extern struct scsi_host_template bfad_im_vport_template;
134 extern struct fc_function_template bfad_im_fc_function_template;
135 extern struct fc_function_template bfad_im_vport_fc_function_template;
136 extern struct scsi_transport_template *bfad_im_scsi_transport_template;
137 extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
138
139 extern struct device_attribute *bfad_im_host_attrs[];
140 extern struct device_attribute *bfad_im_vport_attrs[];
141
142 irqreturn_t bfad_intx(int irq, void *dev_id);
143
144 int bfad_im_bsg_request(struct fc_bsg_job *job);
145 int bfad_im_bsg_timeout(struct fc_bsg_job *job);
146
147 #endif