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James Bottomley2908d772006-08-29 09:22:51 -05001/*
2 * Serial Attached SCSI (SAS) class internal header file
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 */
25
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#ifdef SAS_DEBUG
37#define SAS_DPRINTK(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
38#else
39#define SAS_DPRINTK(fmt, ...)
40#endif
41
42void sas_scsi_recover_host(struct Scsi_Host *shost);
43
44int sas_show_class(enum sas_class class, char *buf);
45int sas_show_proto(enum sas_proto proto, char *buf);
James Bottomley88edf742006-09-06 17:36:13 -050046int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
James Bottomley2908d772006-08-29 09:22:51 -050047int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
48
49int sas_register_phys(struct sas_ha_struct *sas_ha);
50void sas_unregister_phys(struct sas_ha_struct *sas_ha);
51
52int sas_register_ports(struct sas_ha_struct *sas_ha);
53void sas_unregister_ports(struct sas_ha_struct *sas_ha);
54
55enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
56
57int sas_init_queue(struct sas_ha_struct *sas_ha);
58int sas_init_events(struct sas_ha_struct *sas_ha);
59void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
60
61void sas_deform_port(struct asd_sas_phy *phy);
62
63void sas_porte_bytes_dmaed(void *);
64void sas_porte_broadcast_rcvd(void *);
65void sas_porte_link_reset_err(void *);
66void sas_porte_timer_event(void *);
67void sas_porte_hard_reset(void *);
68
69int sas_notify_lldd_dev_found(struct domain_device *);
70void sas_notify_lldd_dev_gone(struct domain_device *);
71
72int sas_smp_phy_control(struct domain_device *dev, int phy_id,
73 enum phy_func phy_func);
74int sas_smp_get_phy_events(struct sas_phy *phy);
75
76struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
77
78void sas_hae_reset(void *);
79
80static inline void sas_queue_event(int event, spinlock_t *lock,
81 unsigned long *pending,
82 struct work_struct *work,
83 struct Scsi_Host *shost)
84{
85 unsigned long flags;
86
87 spin_lock_irqsave(lock, flags);
88 if (test_bit(event, pending)) {
89 spin_unlock_irqrestore(lock, flags);
90 return;
91 }
92 __set_bit(event, pending);
93 spin_unlock_irqrestore(lock, flags);
94 scsi_queue_work(shost, work);
95}
96
97static inline void sas_begin_event(int event, spinlock_t *lock,
98 unsigned long *pending)
99{
100 unsigned long flags;
101
102 spin_lock_irqsave(lock, flags);
103 __clear_bit(event, pending);
104 spin_unlock_irqrestore(lock, flags);
105}
106
107static inline void sas_fill_in_rphy(struct domain_device *dev,
108 struct sas_rphy *rphy)
109{
110 rphy->identify.sas_address = SAS_ADDR(dev->sas_addr);
111 rphy->identify.initiator_port_protocols = dev->iproto;
112 rphy->identify.target_port_protocols = dev->tproto;
113 switch (dev->dev_type) {
114 case SATA_DEV:
115 /* FIXME: need sata device type */
116 case SAS_END_DEV:
117 rphy->identify.device_type = SAS_END_DEVICE;
118 break;
119 case EDGE_DEV:
120 rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
121 break;
122 case FANOUT_DEV:
123 rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
124 break;
125 default:
126 rphy->identify.device_type = SAS_PHY_UNUSED;
127 break;
128 }
129}
130
131static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
132{
133 struct expander_device *ex = &dev->ex_dev;
134 struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
135
136 if (!ex->parent_port) {
137 ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
138 /* FIXME: error handling */
139 BUG_ON(!ex->parent_port);
140 BUG_ON(sas_port_add(ex->parent_port));
141 sas_port_mark_backlink(ex->parent_port);
142 }
143 sas_port_add_phy(ex->parent_port, ex_phy->phy);
144}
145
146#endif /* _SAS_INTERNAL_H_ */