include/scsi/sas_ata.h

   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_ */