linux/drivers/scsi/libsas/sas_internal.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Serial Attached SCSI (SAS) class internal header file
 *
 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
 * Copyright (C) 2005 Luben Tuikov <[email protected]>
 */

#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>
#include <linux/pm_runtime.h>

#ifdef pr_fmt
#undef pr_fmt
#endif

#define SAS_FMT …

#define pr_fmt(fmt) …

#define TO_SAS_TASK(_scsi_cmd) …
#define ASSIGN_SAS_TASK(_sc, _t) …

struct sas_phy_data { … };

void sas_hash_addr(u8 *hashed, const u8 *sas_addr);

int sas_discover_root_expander(struct domain_device *dev);

int sas_ex_revalidate_domain(struct domain_device *dev);
void sas_unregister_domain_devices(struct asd_sas_port *port, int gone);
void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *port);
void sas_discover_event(struct asd_sas_port *port, enum discover_event ev);

void sas_init_dev(struct domain_device *dev);
void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *dev);

void sas_scsi_recover_host(struct Scsi_Host *shost);

int  sas_register_phys(struct sas_ha_struct *sas_ha);

struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy, gfp_t gfp_flags);
void sas_free_event(struct asd_sas_event *event);

struct sas_task *sas_alloc_task(gfp_t flags);
struct sas_task *sas_alloc_slow_task(gfp_t flags);
void sas_free_task(struct sas_task *task);

int  sas_register_ports(struct sas_ha_struct *sas_ha);
void sas_unregister_ports(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_queue_deferred_work(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);
bool 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 *);

void sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
		struct sas_rphy *rphy);
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_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_rps_resp *rps_resp);
int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
			     u8 *sas_addr, enum sas_device_type *type);
int sas_try_ata_reset(struct asd_sas_phy *phy);

void sas_free_device(struct kref *kref);
void sas_destruct_devices(struct asd_sas_port *port);

extern const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS];
extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS];

void sas_task_internal_done(struct sas_task *task);
void sas_task_internal_timedout(struct timer_list *t);
int sas_execute_tmf(struct domain_device *device, void *parameter,
		    int para_len, int force_phy_id,
		    struct sas_tmf_task *tmf);

#ifdef CONFIG_SCSI_SAS_HOST_SMP
extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost);
#else
static inline void sas_smp_host_handler(struct bsg_job *job,
		struct Scsi_Host *shost)
{
	shost_printk(KERN_ERR, shost,
		"Cannot send SMP to a sas host (not enabled in CONFIG)\n");
	bsg_job_done(job, -EINVAL, 0);
}
#endif

static inline bool sas_phy_match_dev_addr(struct domain_device *dev,
					 struct ex_phy *phy)
{ … }

static inline bool sas_phy_match_port_addr(struct asd_sas_port *port,
					   struct ex_phy *phy)
{ … }

static inline bool sas_phy_addr_match(struct ex_phy *p1, struct ex_phy *p2)
{ … }

static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
{ … }

static inline void sas_fill_in_rphy(struct domain_device *dev,
				    struct sas_rphy *rphy)
{ … }

static inline void sas_phy_set_target(struct asd_sas_phy *p, struct domain_device *dev)
{ … }

static inline struct domain_device *sas_alloc_device(void)
{ … }

static inline void sas_put_device(struct domain_device *dev)
{ … }

#endif /* _SAS_INTERNAL_H_ */