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26#ifndef _SAS_INTERNAL_H_
27#define _SAS_INTERNAL_H_
28
29#include <scsi/scsi.h>
30#include <scsi/scsi_host.h>
31#include <scsi/scsi_transport_sas.h>
32#include <scsi/libsas.h>
33
34#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
35
36#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
37
38#define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble)
39#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
40
41void sas_scsi_recover_host(struct Scsi_Host *shost);
42
43int sas_show_class(enum sas_class class, char *buf);
44int sas_show_proto(enum sas_protocol proto, char *buf);
45int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
46int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
47
48int sas_register_phys(struct sas_ha_struct *sas_ha);
49void sas_unregister_phys(struct sas_ha_struct *sas_ha);
50
51int sas_register_ports(struct sas_ha_struct *sas_ha);
52void sas_unregister_ports(struct sas_ha_struct *sas_ha);
53
54enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
55
56int sas_init_queue(struct sas_ha_struct *sas_ha);
57int sas_init_events(struct sas_ha_struct *sas_ha);
58void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
59
60void sas_deform_port(struct asd_sas_phy *phy, int gone);
61
62void sas_porte_bytes_dmaed(struct work_struct *work);
63void sas_porte_broadcast_rcvd(struct work_struct *work);
64void sas_porte_link_reset_err(struct work_struct *work);
65void sas_porte_timer_event(struct work_struct *work);
66void sas_porte_hard_reset(struct work_struct *work);
67
68int sas_notify_lldd_dev_found(struct domain_device *);
69void sas_notify_lldd_dev_gone(struct domain_device *);
70
71int sas_smp_phy_control(struct domain_device *dev, int phy_id,
72 enum phy_func phy_func, struct sas_phy_linkrates *);
73int sas_smp_get_phy_events(struct sas_phy *phy);
74
75struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
76
77void sas_hae_reset(struct work_struct *work);
78
79#ifdef CONFIG_SCSI_SAS_HOST_SMP
80extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
81 struct request *rsp);
82#else
83static inline int sas_smp_host_handler(struct Scsi_Host *shost,
84 struct request *req,
85 struct request *rsp)
86{
87 shost_printk(KERN_ERR, shost,
88 "Cannot send SMP to a sas host (not enabled in CONFIG)\n");
89 return -EINVAL;
90}
91#endif
92
93static inline void sas_queue_event(int event, spinlock_t *lock,
94 unsigned long *pending,
95 struct work_struct *work,
96 struct sas_ha_struct *sas_ha)
97{
98 unsigned long flags;
99
100 spin_lock_irqsave(lock, flags);
101 if (test_bit(event, pending)) {
102 spin_unlock_irqrestore(lock, flags);
103 return;
104 }
105 __set_bit(event, pending);
106 spin_unlock_irqrestore(lock, flags);
107
108 spin_lock_irqsave(&sas_ha->state_lock, flags);
109 if (sas_ha->state != SAS_HA_UNREGISTERED) {
110 scsi_queue_work(sas_ha->core.shost, work);
111 }
112 spin_unlock_irqrestore(&sas_ha->state_lock, flags);
113}
114
115static inline void sas_begin_event(int event, spinlock_t *lock,
116 unsigned long *pending)
117{
118 unsigned long flags;
119
120 spin_lock_irqsave(lock, flags);
121 __clear_bit(event, pending);
122 spin_unlock_irqrestore(lock, flags);
123}
124
125static inline void sas_fill_in_rphy(struct domain_device *dev,
126 struct sas_rphy *rphy)
127{
128 rphy->identify.sas_address = SAS_ADDR(dev->sas_addr);
129 rphy->identify.initiator_port_protocols = dev->iproto;
130 rphy->identify.target_port_protocols = dev->tproto;
131 switch (dev->dev_type) {
132 case SATA_DEV:
133
134 case SAS_END_DEV:
135 rphy->identify.device_type = SAS_END_DEVICE;
136 break;
137 case EDGE_DEV:
138 rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
139 break;
140 case FANOUT_DEV:
141 rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
142 break;
143 default:
144 rphy->identify.device_type = SAS_PHY_UNUSED;
145 break;
146 }
147}
148
149static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
150{
151 struct expander_device *ex = &dev->ex_dev;
152 struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
153
154 if (!ex->parent_port) {
155 ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
156
157 BUG_ON(!ex->parent_port);
158 BUG_ON(sas_port_add(ex->parent_port));
159 sas_port_mark_backlink(ex->parent_port);
160 }
161 sas_port_add_phy(ex->parent_port, ex_phy->phy);
162}
163
164#endif
165
