203 lines
6.4 KiB
C
203 lines
6.4 KiB
C
/*
|
|
* Serial Attached SCSI (SAS) class internal header file
|
|
*
|
|
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
|
|
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
|
|
*
|
|
* This file is licensed under GPLv2.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
* USA
|
|
*
|
|
*/
|
|
|
|
#ifndef _SAS_INTERNAL_H_
|
|
#define _SAS_INTERNAL_H_
|
|
|
|
#include <scsi/scsi.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/scsi_transport_sas.h>
|
|
#include <scsi/libsas.h>
|
|
#include <scsi/sas_ata.h>
|
|
|
|
#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
|
|
|
|
#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
|
|
|
|
#define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble)
|
|
#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
|
|
|
|
struct sas_phy_data {
|
|
/* let reset be performed in sas_queue_work() context */
|
|
struct sas_phy *phy;
|
|
struct mutex event_lock;
|
|
int hard_reset;
|
|
int reset_result;
|
|
struct sas_work reset_work;
|
|
int enable;
|
|
int enable_result;
|
|
struct sas_work enable_work;
|
|
};
|
|
|
|
void sas_scsi_recover_host(struct Scsi_Host *shost);
|
|
|
|
int sas_show_class(enum sas_class class, char *buf);
|
|
int sas_show_proto(enum sas_protocol proto, char *buf);
|
|
int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
|
|
int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
|
|
|
|
int sas_register_phys(struct sas_ha_struct *sas_ha);
|
|
void sas_unregister_phys(struct sas_ha_struct *sas_ha);
|
|
|
|
int sas_register_ports(struct sas_ha_struct *sas_ha);
|
|
void sas_unregister_ports(struct sas_ha_struct *sas_ha);
|
|
|
|
enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
|
|
|
|
int sas_init_queue(struct sas_ha_struct *sas_ha);
|
|
int sas_init_events(struct sas_ha_struct *sas_ha);
|
|
void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
|
|
void sas_disable_revalidation(struct sas_ha_struct *ha);
|
|
void sas_enable_revalidation(struct sas_ha_struct *ha);
|
|
void __sas_drain_work(struct sas_ha_struct *ha);
|
|
|
|
void sas_deform_port(struct asd_sas_phy *phy, int gone);
|
|
|
|
void sas_porte_bytes_dmaed(struct work_struct *work);
|
|
void sas_porte_broadcast_rcvd(struct work_struct *work);
|
|
void sas_porte_link_reset_err(struct work_struct *work);
|
|
void sas_porte_timer_event(struct work_struct *work);
|
|
void sas_porte_hard_reset(struct work_struct *work);
|
|
void sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw);
|
|
|
|
int sas_notify_lldd_dev_found(struct domain_device *);
|
|
void sas_notify_lldd_dev_gone(struct domain_device *);
|
|
|
|
int sas_smp_phy_control(struct domain_device *dev, int phy_id,
|
|
enum phy_func phy_func, struct sas_phy_linkrates *);
|
|
int sas_smp_get_phy_events(struct sas_phy *phy);
|
|
|
|
void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event);
|
|
void sas_device_set_phy(struct domain_device *dev, struct sas_port *port);
|
|
struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
|
|
struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id);
|
|
int sas_ex_phy_discover(struct domain_device *dev, int single);
|
|
int sas_get_report_phy_sata(struct domain_device *dev, int phy_id,
|
|
struct smp_resp *rps_resp);
|
|
int sas_try_ata_reset(struct asd_sas_phy *phy);
|
|
void sas_hae_reset(struct work_struct *work);
|
|
|
|
void sas_free_device(struct kref *kref);
|
|
|
|
#ifdef CONFIG_SCSI_SAS_HOST_SMP
|
|
extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
|
|
struct request *rsp);
|
|
#else
|
|
static inline int sas_smp_host_handler(struct Scsi_Host *shost,
|
|
struct request *req,
|
|
struct request *rsp)
|
|
{
|
|
shost_printk(KERN_ERR, shost,
|
|
"Cannot send SMP to a sas host (not enabled in CONFIG)\n");
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
|
|
{
|
|
SAS_DPRINTK("%s: for %s device %16llx returned %d\n",
|
|
func, dev->parent ? "exp-attached" :
|
|
"direct-attached",
|
|
SAS_ADDR(dev->sas_addr), err);
|
|
sas_unregister_dev(dev->port, dev);
|
|
}
|
|
|
|
static inline void sas_fill_in_rphy(struct domain_device *dev,
|
|
struct sas_rphy *rphy)
|
|
{
|
|
rphy->identify.sas_address = SAS_ADDR(dev->sas_addr);
|
|
rphy->identify.initiator_port_protocols = dev->iproto;
|
|
rphy->identify.target_port_protocols = dev->tproto;
|
|
switch (dev->dev_type) {
|
|
case SATA_DEV:
|
|
/* FIXME: need sata device type */
|
|
case SAS_END_DEV:
|
|
case SATA_PENDING:
|
|
rphy->identify.device_type = SAS_END_DEVICE;
|
|
break;
|
|
case EDGE_DEV:
|
|
rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
|
|
break;
|
|
case FANOUT_DEV:
|
|
rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
|
|
break;
|
|
default:
|
|
rphy->identify.device_type = SAS_PHY_UNUSED;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline void sas_phy_set_target(struct asd_sas_phy *p, struct domain_device *dev)
|
|
{
|
|
struct sas_phy *phy = p->phy;
|
|
|
|
if (dev) {
|
|
if (dev_is_sata(dev))
|
|
phy->identify.device_type = SAS_END_DEVICE;
|
|
else
|
|
phy->identify.device_type = dev->dev_type;
|
|
phy->identify.target_port_protocols = dev->tproto;
|
|
} else {
|
|
phy->identify.device_type = SAS_PHY_UNUSED;
|
|
phy->identify.target_port_protocols = 0;
|
|
}
|
|
}
|
|
|
|
static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
|
|
{
|
|
struct expander_device *ex = &dev->ex_dev;
|
|
struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
|
|
|
|
if (!ex->parent_port) {
|
|
ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
|
|
/* FIXME: error handling */
|
|
BUG_ON(!ex->parent_port);
|
|
BUG_ON(sas_port_add(ex->parent_port));
|
|
sas_port_mark_backlink(ex->parent_port);
|
|
}
|
|
sas_port_add_phy(ex->parent_port, ex_phy->phy);
|
|
}
|
|
|
|
static inline struct domain_device *sas_alloc_device(void)
|
|
{
|
|
struct domain_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
|
|
if (dev) {
|
|
INIT_LIST_HEAD(&dev->siblings);
|
|
INIT_LIST_HEAD(&dev->dev_list_node);
|
|
INIT_LIST_HEAD(&dev->disco_list_node);
|
|
kref_init(&dev->kref);
|
|
spin_lock_init(&dev->done_lock);
|
|
}
|
|
return dev;
|
|
}
|
|
|
|
static inline void sas_put_device(struct domain_device *dev)
|
|
{
|
|
kref_put(&dev->kref, sas_free_device);
|
|
}
|
|
|
|
#endif /* _SAS_INTERNAL_H_ */
|