summaryrefslogtreecommitdiff
path: root/drivers/scsi/isci/port.h
blob: b01b0c63e53f9802b30159e1491d5ac1e2af2cb1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/*
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * BSD LICENSE
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * This file contains the isci_port object definition.
 *
 * port.h
 */

#if !defined(_ISCI_PORT_H_)
#define _ISCI_PORT_H_

struct isci_phy;
struct isci_host;


enum isci_status {
	isci_freed        = 0x00,
	isci_starting     = 0x01,
	isci_ready        = 0x02,
	isci_ready_for_io = 0x03,
	isci_stopping     = 0x04,
	isci_stopped      = 0x05,
	isci_host_quiesce = 0x06
};

/**
 * struct isci_port - This class represents the port object used to internally
 *    represent libsas port objects. It also keeps a list of remote device
 *    objects.
 *
 *
 */
struct isci_port {

	struct scic_sds_port *sci_port_handle;

	enum isci_status status;
	struct isci_host *isci_host;
	struct asd_sas_port sas_port;
	struct list_head remote_dev_list;
	spinlock_t remote_device_lock;
	spinlock_t state_lock;
	struct list_head domain_dev_list;
	struct completion start_complete;
	struct completion hard_reset_complete;
	enum sci_status hard_reset_status;
};

#define to_isci_port(p)	\
	container_of(p, struct isci_port, sas_port);

enum isci_status isci_port_get_state(
	struct isci_port *isci_port);



void isci_port_formed(
	struct asd_sas_phy *);

void isci_port_deformed(
	struct asd_sas_phy *);

void isci_port_bc_change_received(
	struct isci_host *isci_host,
	struct scic_sds_port *port,
	struct scic_sds_phy *phy);

void isci_port_link_up(
	struct isci_host *isci_host,
	struct scic_sds_port *port,
	struct scic_sds_phy *phy);

void isci_port_link_down(
	struct isci_host *isci_host,
	struct isci_phy *isci_phy,
	struct isci_port *port);

void isci_port_ready(
	struct isci_host *isci_host,
	struct isci_port *isci_port);

void isci_port_not_ready(
	struct isci_host *isci_host,
	struct isci_port *port);

void isci_port_init(
	struct isci_port *port,
	struct isci_host *host,
	int index);

void isci_port_hard_reset_complete(
	struct isci_port *isci_port,
	enum sci_status completion_status);

int isci_port_perform_hard_reset(
	struct isci_port *isci_port_ptr,
	struct isci_phy *isci_phy_ptr);

#endif /* !defined(_ISCI_PORT_H_) */