xref: /linux/drivers/scsi/isci/remote_device.h (revision 57f20f4ed6fb702339be2ef4dea9d15e6a7d0d07)
1 /*
2  * This file is provided under a dual BSD/GPLv2 license.  When using or
3  * redistributing this file, you may do so under either license.
4  *
5  * GPL LICENSE SUMMARY
6  *
7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of version 2 of the GNU General Public License as
11  * published by the Free Software Foundation.
12  *
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.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21  * The full GNU General Public License is included in this distribution
22  * in the file called LICENSE.GPL.
23  *
24  * BSD LICENSE
25  *
26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
27  * All rights reserved.
28  *
29  * Redistribution and use in source and binary forms, with or without
30  * modification, are permitted provided that the following conditions
31  * are met:
32  *
33  *   * Redistributions of source code must retain the above copyright
34  *     notice, this list of conditions and the following disclaimer.
35  *   * Redistributions in binary form must reproduce the above copyright
36  *     notice, this list of conditions and the following disclaimer in
37  *     the documentation and/or other materials provided with the
38  *     distribution.
39  *   * Neither the name of Intel Corporation nor the names of its
40  *     contributors may be used to endorse or promote products derived
41  *     from this software without specific prior written permission.
42  *
43  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54  */
55 
56 #if !defined(_ISCI_REMOTE_DEVICE_H_)
57 #define _ISCI_REMOTE_DEVICE_H_
58 #include "scic_sds_remote_device.h"
59 
60 struct isci_host;
61 
62 struct isci_remote_device {
63 	enum isci_status status;
64 	#define IDEV_START_PENDING 0
65 	#define IDEV_STOP_PENDING 1
66 	#define IDEV_ALLOCATED 2
67 	unsigned long flags;
68 	struct isci_port *isci_port;
69 	struct domain_device *domain_dev;
70 	struct list_head node;
71 	struct list_head reqs_in_process;
72 	spinlock_t state_lock;
73 	struct scic_sds_remote_device sci;
74 };
75 
76 #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000
77 
78 void isci_remote_device_start_complete(struct isci_host *ihost,
79 				       struct isci_remote_device *idev,
80 				       enum sci_status);
81 void isci_remote_device_stop_complete(struct isci_host *ihost,
82 				      struct isci_remote_device *idev,
83 				      enum sci_status);
84 enum sci_status isci_remote_device_stop(struct isci_host *ihost,
85 					struct isci_remote_device *idev);
86 void isci_remote_device_nuke_requests(struct isci_host *ihost,
87 				      struct isci_remote_device *idev);
88 void isci_remote_device_ready(struct isci_host *ihost,
89 			      struct isci_remote_device *idev);
90 void isci_remote_device_not_ready(struct isci_host *ihost,
91 				  struct isci_remote_device *idev, u32 reason);
92 void isci_remote_device_gone(struct domain_device *domain_dev);
93 int isci_remote_device_found(struct domain_device *domain_dev);
94 bool isci_device_is_reset_pending(struct isci_host *ihost,
95 				  struct isci_remote_device *idev);
96 void isci_device_clear_reset_pending(struct isci_host *ihost,
97 				     struct isci_remote_device *idev);
98 void isci_remote_device_change_state(struct isci_remote_device *idev,
99 				     enum isci_status status);
100 
101 #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */
102