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
18 static 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
24 int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy);
25 int sas_ata_init(struct domain_device *dev);
26 void sas_ata_task_abort(struct sas_task *task);
27 void sas_ata_strategy_handler(struct Scsi_Host *shost);
28 void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q);
29 void sas_ata_schedule_reset(struct domain_device *dev);
30 void sas_ata_wait_eh(struct domain_device *dev);
31 void sas_probe_sata(struct asd_sas_port *port);
32 void sas_suspend_sata(struct asd_sas_port *port);
33 void sas_resume_sata(struct asd_sas_port *port);
34 void sas_ata_end_eh(struct ata_port *ap);
35 void sas_ata_device_link_abort(struct domain_device *dev, bool force_reset);
36 int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
37 int force_phy_id);
38 int smp_ata_check_ready_type(struct ata_link *link);
39 int sas_discover_sata(struct domain_device *dev);
40 int sas_ata_add_dev(struct domain_device *parent, struct ex_phy *phy,
41 struct domain_device *child, int phy_id);
42
43 extern const struct attribute_group sas_ata_sdev_attr_group;
44
45 #else
46
47 static inline void sas_ata_disabled_notice(void)
48 {
49 pr_notice_once("ATA device seen but CONFIG_SCSI_SAS_ATA=N\n");
50 }
51
52 static inline int dev_is_sata(struct domain_device *dev)
53 {
54 return 0;
55 }
56 static inline int sas_ata_init(struct domain_device *dev)
57 {
58 return 0;
59 }
60 static inline void sas_ata_task_abort(struct sas_task *task)
61 {
62 }
63
64 static inline void sas_ata_strategy_handler(struct Scsi_Host *shost)
65 {
66 }
67
68 static inline void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q)
69 {
70 }
71
72 static inline void sas_ata_schedule_reset(struct domain_device *dev)
73 {
74 }
75
76 static inline void sas_ata_wait_eh(struct domain_device *dev)
77 {
78 }
79
80 static inline void sas_probe_sata(struct asd_sas_port *port)
81 {
82 }
83
84 static inline void sas_suspend_sata(struct asd_sas_port *port)
85 {
86 }
87
88 static inline void sas_resume_sata(struct asd_sas_port *port)
89 {
90 }
91
92 static inline int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy)
93 {
94 return 0;
95 }
96
97 static inline void sas_ata_end_eh(struct ata_port *ap)
98 {
99 }
100
101 static inline void sas_ata_device_link_abort(struct domain_device *dev,
102 bool force_reset)
103 {
104 }
105
106 static inline int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
107 int force_phy_id)
108 {
109 return 0;
110 }
111
112 static inline int smp_ata_check_ready_type(struct ata_link *link)
113 {
114 return 0;
115 }
116
117 static inline int sas_discover_sata(struct domain_device *dev)
118 {
119 sas_ata_disabled_notice();
120 return -ENXIO;
121 }
122
123 static 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_ */
135
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