2
* Serial Attached SCSI (SAS) class internal header file
4
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
7
* This file is licensed under GPLv2.
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.
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.
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
26
#ifndef _SAS_INTERNAL_H_
27
#define _SAS_INTERNAL_H_
29
#include <scsi/scsi.h>
30
#include <scsi/scsi_host.h>
31
#include <scsi/scsi_transport_sas.h>
32
#include <scsi/libsas.h>
34
#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
36
#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
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)
41
void sas_scsi_recover_host(struct Scsi_Host *shost);
43
int sas_show_class(enum sas_class class, char *buf);
44
int sas_show_proto(enum sas_protocol proto, char *buf);
45
int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
46
int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
48
int sas_register_phys(struct sas_ha_struct *sas_ha);
49
void sas_unregister_phys(struct sas_ha_struct *sas_ha);
51
int sas_register_ports(struct sas_ha_struct *sas_ha);
52
void sas_unregister_ports(struct sas_ha_struct *sas_ha);
54
enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
56
int sas_init_queue(struct sas_ha_struct *sas_ha);
57
int sas_init_events(struct sas_ha_struct *sas_ha);
58
void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
60
void sas_deform_port(struct asd_sas_phy *phy, int gone);
62
void sas_porte_bytes_dmaed(struct work_struct *work);
63
void sas_porte_broadcast_rcvd(struct work_struct *work);
64
void sas_porte_link_reset_err(struct work_struct *work);
65
void sas_porte_timer_event(struct work_struct *work);
66
void sas_porte_hard_reset(struct work_struct *work);
68
int sas_notify_lldd_dev_found(struct domain_device *);
69
void sas_notify_lldd_dev_gone(struct domain_device *);
71
int sas_smp_phy_control(struct domain_device *dev, int phy_id,
72
enum phy_func phy_func, struct sas_phy_linkrates *);
73
int sas_smp_get_phy_events(struct sas_phy *phy);
75
struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
77
void sas_hae_reset(struct work_struct *work);
79
#ifdef CONFIG_SCSI_SAS_HOST_SMP
80
extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
83
static inline int sas_smp_host_handler(struct Scsi_Host *shost,
87
shost_printk(KERN_ERR, shost,
88
"Cannot send SMP to a sas host (not enabled in CONFIG)\n");
93
static 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)
100
spin_lock_irqsave(lock, flags);
101
if (test_bit(event, pending)) {
102
spin_unlock_irqrestore(lock, flags);
105
__set_bit(event, pending);
106
spin_unlock_irqrestore(lock, flags);
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);
112
spin_unlock_irqrestore(&sas_ha->state_lock, flags);
115
static inline void sas_begin_event(int event, spinlock_t *lock,
116
unsigned long *pending)
120
spin_lock_irqsave(lock, flags);
121
__clear_bit(event, pending);
122
spin_unlock_irqrestore(lock, flags);
125
static inline void sas_fill_in_rphy(struct domain_device *dev,
126
struct sas_rphy *rphy)
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) {
133
/* FIXME: need sata device type */
135
rphy->identify.device_type = SAS_END_DEVICE;
138
rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
141
rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
144
rphy->identify.device_type = SAS_PHY_UNUSED;
149
static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
151
struct expander_device *ex = &dev->ex_dev;
152
struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
154
if (!ex->parent_port) {
155
ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
156
/* FIXME: error handling */
157
BUG_ON(!ex->parent_port);
158
BUG_ON(sas_port_add(ex->parent_port));
159
sas_port_mark_backlink(ex->parent_port);
161
sas_port_add_phy(ex->parent_port, ex_phy->phy);
164
#endif /* _SAS_INTERNAL_H_ */