tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 2005-2009 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 "fcs/bfa_fcs_fcpim.h"
22#include "bfad_im_compat.h"
23
24#define FCPI_NAME " fcpim"
25
26bfa_status_t bfad_im_module_init(void);
27void bfad_im_module_exit(void);
28bfa_status_t bfad_im_probe(struct bfad_s *bfad);
29void bfad_im_probe_undo(struct bfad_s *bfad);
30void bfad_im_probe_post(struct bfad_im_s *im);
31bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
32void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
33void bfad_im_port_online(struct bfad_s *bfad, struct bfad_port_s *port);
34void bfad_im_port_offline(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);
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#define BFAD_KOBJ_NAME_LEN 20
48
49/*
50 * itnim flags
51 */
52#define ITNIM_MAPPED 0x00000001
53
54#define SCSI_TASK_MGMT 0x00000001
55#define IO_DONE_BIT 0
56
57struct bfad_itnim_data_s {
58 struct bfad_itnim_s *itnim;
59};
60
61struct bfad_im_port_s {
62 struct bfad_s *bfad;
63 struct bfad_port_s *port;
64 struct work_struct port_delete_work;
65 int idr_id;
66 u16 cur_scsi_id;
67 struct list_head binding_list;
68 struct Scsi_Host *shost;
69 struct list_head itnim_mapped_list;
70};
71
72enum bfad_itnim_state {
73 ITNIM_STATE_NONE,
74 ITNIM_STATE_ONLINE,
75 ITNIM_STATE_OFFLINE_PENDING,
76 ITNIM_STATE_OFFLINE,
77 ITNIM_STATE_TIMEOUT,
78 ITNIM_STATE_FREE,
79};
80
81/*
82 * Per itnim data structure
83 */
84struct bfad_itnim_s {
85 struct list_head list_entry;
86 struct bfa_fcs_itnim_s fcs_itnim;
87 struct work_struct itnim_work;
88 u32 flags;
89 enum bfad_itnim_state state;
90 struct bfad_im_s *im;
91 struct bfad_im_port_s *im_port;
92 struct bfad_rport_s *drv_rport;
93 struct fc_rport *fc_rport;
94 struct bfa_itnim_s *bfa_itnim;
95 u16 scsi_tgt_id;
96 u16 queue_work;
97 unsigned long last_ramp_up_time;
98 unsigned long last_queue_full_time;
99};
100
101enum bfad_binding_type {
102 FCP_PWWN_BINDING = 0x1,
103 FCP_NWWN_BINDING = 0x2,
104 FCP_FCID_BINDING = 0x3,
105};
106
107struct bfad_fcp_binding {
108 struct list_head list_entry;
109 enum bfad_binding_type binding_type;
110 u16 scsi_target_id;
111 u32 fc_id;
112 wwn_t nwwn;
113 wwn_t pwwn;
114};
115
116struct bfad_im_s {
117 struct bfad_s *bfad;
118 struct workqueue_struct *drv_workq;
119 char drv_workq_name[BFAD_KOBJ_NAME_LEN];
120};
121
122struct Scsi_Host *bfad_os_scsi_host_alloc(struct bfad_im_port_s *im_port,
123 struct bfad_s *);
124bfa_status_t bfad_os_thread_workq(struct bfad_s *bfad);
125void bfad_os_destroy_workq(struct bfad_im_s *im);
126void bfad_os_itnim_process(struct bfad_itnim_s *itnim_drv);
127void bfad_os_fc_host_init(struct bfad_im_port_s *im_port);
128void bfad_os_scsi_host_free(struct bfad_s *bfad,
129 struct bfad_im_port_s *im_port);
130void bfad_os_ramp_up_qdepth(struct bfad_itnim_s *itnim,
131 struct scsi_device *sdev);
132void bfad_os_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
133struct bfad_itnim_s *bfad_os_get_itnim(struct bfad_im_port_s *im_port, int id);
134int bfad_os_scsi_add_host(struct Scsi_Host *shost,
135 struct bfad_im_port_s *im_port, struct bfad_s *bfad);
136
137void bfad_im_itnim_unmap(struct bfad_im_port_s *im_port,
138 struct bfad_itnim_s *itnim);
139
140extern struct scsi_host_template bfad_im_scsi_host_template;
141extern struct scsi_host_template bfad_im_vport_template;
142extern struct fc_function_template bfad_im_fc_function_template;
143extern struct scsi_transport_template *bfad_im_scsi_transport_template;
144
145#endif