tjh.dev
Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Support for SATA devices on Serial Attached SCSI (SAS) controllers
4 *
5 * Copyright (C) 2006 IBM Corporation
6 *
7 * Written by: Darrick J. Wong <djwong@us.ibm.com>, IBM Corporation
8 */
9
10#ifndef _SAS_ATA_H_
11#define _SAS_ATA_H_
12
13#include <linux/libata.h>
14#include <scsi/libsas.h>
15
16#ifdef CONFIG_SCSI_SAS_ATA
17
18static inline int dev_is_sata(struct domain_device *dev)
19{
20 return dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM ||
21 dev->dev_type == SAS_SATA_PM_PORT || dev->dev_type == SAS_SATA_PENDING;
22}
23
24int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy);
25int sas_ata_init(struct domain_device *dev);
26void sas_ata_task_abort(struct sas_task *task);
27void sas_ata_strategy_handler(struct Scsi_Host *shost);
28void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q);
29void sas_ata_schedule_reset(struct domain_device *dev);
30void sas_ata_wait_eh(struct domain_device *dev);
31void sas_probe_sata(struct asd_sas_port *port);
32void sas_suspend_sata(struct asd_sas_port *port);
33void sas_resume_sata(struct asd_sas_port *port);
34void sas_ata_end_eh(struct ata_port *ap);
35void sas_ata_device_link_abort(struct domain_device *dev, bool force_reset);
36int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
37 int force_phy_id);
38int smp_ata_check_ready_type(struct ata_link *link);
39int sas_discover_sata(struct domain_device *dev);
40int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy,
41 struct domain_device *child, int phy_id);
42
43extern const struct attribute_group sas_ata_sdev_attr_group;
44
45#else
46
47static inline void sas_ata_disabled_notice(void)
48{
49 pr_notice_once("ATA device seen but CONFIG_SCSI_SAS_ATA=N\n");
50}
51
52static inline int dev_is_sata(struct domain_device *dev)
53{
54 return 0;
55}
56static inline int sas_ata_init(struct domain_device *dev)
57{
58 return 0;
59}
60static inline void sas_ata_task_abort(struct sas_task *task)
61{
62}
63
64static inline void sas_ata_strategy_handler(struct Scsi_Host *shost)
65{
66}
67
68static inline void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q)
69{
70}
71
72static inline void sas_ata_schedule_reset(struct domain_device *dev)
73{
74}
75
76static inline void sas_ata_wait_eh(struct domain_device *dev)
77{
78}
79
80static inline void sas_probe_sata(struct asd_sas_port *port)
81{
82}
83
84static inline void sas_suspend_sata(struct asd_sas_port *port)
85{
86}
87
88static inline void sas_resume_sata(struct asd_sas_port *port)
89{
90}
91
92static inline int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy)
93{
94 return 0;
95}
96
97static inline void sas_ata_end_eh(struct ata_port *ap)
98{
99}
100
101static inline void sas_ata_device_link_abort(struct domain_device *dev,
102 bool force_reset)
103{
104}
105
106static inline int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
107 int force_phy_id)
108{
109 return 0;
110}
111
112static inline int smp_ata_check_ready_type(struct ata_link *link)
113{
114 return 0;
115}
116
117static inline int sas_discover_sata(struct domain_device *dev)
118{
119 sas_ata_disabled_notice();
120 return -ENXIO;
121}
122
123static inline int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy,
124 struct domain_device *child, int phy_id)
125{
126 sas_ata_disabled_notice();
127 return -ENODEV;
128}
129
130#define sas_ata_sdev_attr_group ((struct attribute_group) {})
131
132#endif
133
134#endif /* _SAS_ATA_H_ */