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