ata_pmp.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/sysctl.h>
#include <sys/taskqueue.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/eventhandler.h>
#include <sys/malloc.h>
#include <sys/cons.h>
#include <geom/geom_disk.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_xpt_internal.h>
#include <cam/cam_sim.h>
#include <cam/ata/ata_all.h>

Include dependency graph for ata_pmp.c:

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Data Structures
struct	pmp_softc

Macros
#define	ccb_state   ppriv_field0
#define	ccb_bp   ppriv_ptr1
#define	PMP_EV_RESET   1
#define	PMP_EV_RESCAN   2
#define	PMP_DEFAULT_TIMEOUT   30 /* Timeout in seconds */
#define	PMP_DEFAULT_RETRY   1
#define	PMP_DEFAULT_HIDE_SPECIAL   1

Enumerations
enum	pmp_state {   PMP_STATE_NORMAL , PMP_STATE_PORTS , PMP_STATE_PM_QUIRKS_1 , PMP_STATE_PM_QUIRKS_2 ,   PMP_STATE_PM_QUIRKS_3 , PMP_STATE_PRECONFIG , PMP_STATE_RESET , PMP_STATE_CONNECT ,   PMP_STATE_CHECK , PMP_STATE_CLEAR , PMP_STATE_CONFIG , PMP_STATE_SCAN }
enum	pmp_flags { PMP_FLAG_SCTX_INIT = 0x200 }
enum	pmp_ccb_state { PMP_CCB_PROBE = 0x01 }

Functions
	__FBSDID ("$FreeBSD$")
static void	pmpasync (void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
static void	pmpsysctlinit (void *context, int pending)
static void	pmpdone (struct cam_periph *periph, union ccb *done_ccb)
static	SYSCTL_NODE (_kern_cam, OID_AUTO, pmp, CTLFLAG_RD|CTLFLAG_MPSAFE, 0, "CAM Direct Access Disk driver")
	SYSCTL_INT (_kern_cam_pmp, OID_AUTO, retry_count, CTLFLAG_RWTUN, &pmp_retry_count, 0, "Normal I/O retry count")
	SYSCTL_INT (_kern_cam_pmp, OID_AUTO, default_timeout, CTLFLAG_RWTUN, &pmp_default_timeout, 0, "Normal I/O timeout (in seconds)")
	SYSCTL_INT (_kern_cam_pmp, OID_AUTO, hide_special, CTLFLAG_RWTUN, &pmp_hide_special, 0, "Hide extra ports")
	PERIPHDRIVER_DECLARE (pmp, pmpdriver)
static void	pmpfreeze (struct cam_periph *periph, int mask)
static void	pmprelease (struct cam_periph *periph, int mask)
static void	pmponinvalidate (struct cam_periph *periph)
static void	pmpcleanup (struct cam_periph *periph)
static cam_status	pmpregister (struct cam_periph *periph, void *arg)
static void	pmpstart (struct cam_periph *periph, union ccb *start_ccb)

Variables
static periph_init_t	pmpinit
static periph_ctor_t	pmpregister
static periph_dtor_t	pmpcleanup
static periph_start_t	pmpstart
static periph_oninv_t	pmponinvalidate
static int	pmp_retry_count = PMP_DEFAULT_RETRY
static int	pmp_default_timeout = PMP_DEFAULT_TIMEOUT
static int	pmp_hide_special = PMP_DEFAULT_HIDE_SPECIAL
static struct periph_driver	pmpdriver

Macro Definition Documentation

ccb_bp

#define ccb_bp   ppriv_ptr1

Definition at line 91 of file ata_pmp.c.

ccb_state

#define ccb_state   ppriv_field0

Definition at line 90 of file ata_pmp.c.

PMP_DEFAULT_HIDE_SPECIAL

#define PMP_DEFAULT_HIDE_SPECIAL   1

Definition at line 135 of file ata_pmp.c.

PMP_DEFAULT_RETRY

#define PMP_DEFAULT_RETRY   1

Definition at line 131 of file ata_pmp.c.

PMP_DEFAULT_TIMEOUT

#define PMP_DEFAULT_TIMEOUT   30 /* Timeout in seconds */

Definition at line 127 of file ata_pmp.c.

PMP_EV_RESCAN

#define PMP_EV_RESCAN   2

PMP_EV_RESET

#define PMP_EV_RESET   1

Enumeration Type Documentation

pmp_ccb_state

enum pmp_ccb_state

Enumerator
PMP_CCB_PROBE

Definition at line 85 of file ata_pmp.c.

pmp_flags

enum pmp_flags

Enumerator
PMP_FLAG_SCTX_INIT

Definition at line 81 of file ata_pmp.c.

pmp_state

enum pmp_state

Enumerator
PMP_STATE_NORMAL
PMP_STATE_PORTS
PMP_STATE_PM_QUIRKS_1
PMP_STATE_PM_QUIRKS_2
PMP_STATE_PM_QUIRKS_3
PMP_STATE_PRECONFIG
PMP_STATE_RESET
PMP_STATE_CONNECT
PMP_STATE_CHECK
PMP_STATE_CLEAR
PMP_STATE_CONFIG
PMP_STATE_SCAN

Definition at line 66 of file ata_pmp.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

PERIPHDRIVER_DECLARE()

PERIPHDRIVER_DECLARE	(	pmp	,
		pmpdriver
	)

pmpasync()

static void pmpasync ( void *  callback_arg, u_int32_t  code, struct cam_path *  path, void *  arg  )

static

Definition at line 265 of file ata_pmp.c.

References AC_BUS_RESET, AC_FOUND_DEVICE, AC_SCSI_AEN, AC_SENT_BDR, cam_periph_acquire(), cam_periph_alloc(), cam_periph_async(), CAM_PERIPH_BIO, CAM_PRIORITY_DEV, CAM_REQ_CMP, CAM_REQ_INPROG, PMP_EV_RESCAN, PMP_EV_RESET, PMP_STATE_NORMAL, PMP_STATE_PM_QUIRKS_1, PMP_STATE_PRECONFIG, pmpasync(), pmpcleanup, pmpfreeze(), pmponinvalidate, pmpregister, pmprelease(), pmpstart, PROTO_SATAPM, ccb_getdev::protocol, cam_periph::softc, xpt_hold_boot(), xpt_release_boot(), and xpt_schedule().

Referenced by pmpasync(), pmponinvalidate(), and pmpregister().

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pmpcleanup()

static void pmpcleanup ( struct cam_periph *  periph )

static

Definition at line 244 of file ata_pmp.c.

References cam_periph_lock, cam_periph_unlock, cam_periph::path, PMP_FLAG_SCTX_INIT, cam_periph::softc, and xpt_print().

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pmpdone()

static void pmpdone ( struct cam_periph *  periph, union ccb *  done_ccb  )

static

Definition at line 583 of file ata_pmp.c.

References AC_LOST_DEVICE, AC_SENT_BDR, ccb::ataio, CAM_DEBUG, CAM_DEBUG_TRACE, CAM_DEV_QFRZN, cam_freeze_devq(), cam_periph_error(), cam_periph_release_locked(), CAM_PRIORITY_NONE, CAM_PRIORITY_XPT, cam_release_devq(), CAM_REQ_CMP, CAM_STATUS_MASK, ccb, ccb::ccb_h, cts, CTS_SATA_CAPS_H_AN, CTS_SATA_CAPS_H_DMAAA, CTS_SATA_CAPS_H_PMREQ, CTS_SATA_VALID_CAPS, CTS_SATA_VALID_REVISION, CTS_TYPE_CURRENT_SETTINGS, ata_res::lba_high, ata_res::lba_low, ata_res::lba_mid, ccb_hdr::path, cam_periph::path, ccb_hdr::path_id, cam_periph::periph_name, ccb_hdr::pinfo, PMP_EV_RESCAN, pmp_hide_special, PMP_STATE_CHECK, PMP_STATE_CLEAR, PMP_STATE_CONFIG, PMP_STATE_CONNECT, PMP_STATE_NORMAL, PMP_STATE_PM_QUIRKS_1, PMP_STATE_PM_QUIRKS_2, PMP_STATE_PM_QUIRKS_3, PMP_STATE_PORTS, PMP_STATE_PRECONFIG, PMP_STATE_RESET, pmprelease(), cam_pinfo::priority, RELSIM_RELEASE_AFTER_TIMEOUT, ccb_ataio::res, ata_res::sector_count, cam_periph::softc, ccb_hdr::status, cam_periph::unit_number, xpt_action(), xpt_alloc_ccb_nowait(), xpt_async(), xpt_create_path(), xpt_free_path(), xpt_path_path_id(), xpt_release_boot(), xpt_release_ccb(), xpt_rescan(), xpt_schedule(), XPT_SET_TRAN_SETTINGS, and xpt_setup_ccb().

Referenced by pmpstart().

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pmpfreeze()

static void pmpfreeze ( struct cam_periph *  periph, int  mask  )

static

Definition at line 178 of file ata_pmp.c.

References cam_freeze_devq(), CAM_REQ_CMP, cam_periph::path, cam_periph::softc, xpt_acquire_device(), xpt_create_path(), xpt_free_path(), and xpt_path_path_id().

Referenced by pmpasync().

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pmponinvalidate()

static void pmponinvalidate ( struct cam_periph *  periph )

static

Definition at line 222 of file ata_pmp.c.

References AC_LOST_DEVICE, CAM_REQ_CMP, cam_periph::path, cam_path::periph, pmpasync(), pmprelease(), xpt_async(), xpt_create_path(), xpt_free_path(), xpt_path_path_id(), and xpt_register_async().

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pmpregister()

static cam_status pmpregister ( struct cam_periph *  periph, void *  arg  )

static

Definition at line 368 of file ata_pmp.c.

References AC_BUS_RESET, AC_LOST_DEVICE, AC_SCSI_AEN, AC_SENT_BDR, cam_periph_acquire(), CAM_PRIORITY_DEV, CAM_REQ_CMP, CAM_REQ_CMP_ERR, ccb_getdev::ident_data, cam_periph::path, PMP_EV_RESCAN, PMP_STATE_PORTS, pmpasync(), pmpsysctlinit(), cam_periph::softc, xpt_announce_periph(), xpt_hold_boot(), xpt_register_async(), and xpt_schedule().

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pmprelease()

static void pmprelease ( struct cam_periph *  periph, int  mask  )

static

Definition at line 200 of file ata_pmp.c.

References cam_release_devq(), CAM_REQ_CMP, cam_periph::path, cam_periph::softc, xpt_create_path(), xpt_free_path(), xpt_path_path_id(), and xpt_release_device().

Referenced by pmpasync(), pmpdone(), and pmponinvalidate().

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pmpstart()

static void pmpstart ( struct cam_periph *  periph, union ccb *  start_ccb  )

static

Definition at line 421 of file ata_pmp.c.

References ata_pm_read_cmd(), ata_pm_write_cmd(), ccb::ataio, CAM_DEBUG, CAM_DEBUG_TRACE, CAM_DIR_NONE, cam_fill_ataio(), CAM_PRIORITY_NONE, CAM_REQ_CMP, cts, CTS_SATA_CAPS_H_AN, CTS_SATA_VALID_CAPS, CTS_SATA_VALID_REVISION, CTS_TYPE_CURRENT_SETTINGS, CTS_TYPE_USER_SETTINGS, cam_periph::path, pmp_default_timeout, pmp_retry_count, PMP_STATE_CHECK, PMP_STATE_CLEAR, PMP_STATE_CONFIG, PMP_STATE_CONNECT, PMP_STATE_PM_QUIRKS_1, PMP_STATE_PM_QUIRKS_2, PMP_STATE_PM_QUIRKS_3, PMP_STATE_PORTS, PMP_STATE_PRECONFIG, PMP_STATE_RESET, pmpdone(), cam_periph::softc, xpt_action(), xpt_create_path(), xpt_free_path(), XPT_GET_TRAN_SETTINGS, xpt_path_path_id(), and xpt_setup_ccb().

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pmpsysctlinit()

static void pmpsysctlinit ( void *  context, int  pending  )

static

Definition at line 339 of file ata_pmp.c.

References cam_periph_acquire(), cam_periph_release(), PMP_FLAG_SCTX_INIT, cam_periph::softc, and cam_periph::unit_number.

Referenced by pmpregister().

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SYSCTL_INT() [1/3]

SYSCTL_INT	(	_kern_cam_pmp	,
		OID_AUTO	,
		default_timeout	,
		CTLFLAG_RWTUN	,
		&	pmp_default_timeout,
		0	,
		"Normal I/O timeout (in seconds)"
	)

SYSCTL_INT() [2/3]

SYSCTL_INT	(	_kern_cam_pmp	,
		OID_AUTO	,
		hide_special	,
		CTLFLAG_RWTUN	,
		&	pmp_hide_special,
		0	,
		"Hide extra ports"
	)

SYSCTL_INT() [3/3]

SYSCTL_INT	(	_kern_cam_pmp	,
		OID_AUTO	,
		retry_count	,
		CTLFLAG_RWTUN	,
		&	pmp_retry_count,
		0	,
		"Normal I/O retry count"
	)

SYSCTL_NODE()

static SYSCTL_NODE ( _kern_cam  , OID_AUTO  , pmp  , CTLFLAG_RD|  CTLFLAG_MPSAFE, 0  , "CAM Direct Access Disk driver"    )

static

Variable Documentation

pmp_default_timeout

int pmp_default_timeout = PMP_DEFAULT_TIMEOUT

static

Definition at line 139 of file ata_pmp.c.

Referenced by pmpstart().

pmp_hide_special

int pmp_hide_special = PMP_DEFAULT_HIDE_SPECIAL

static

Definition at line 140 of file ata_pmp.c.

Referenced by pmpdone().

pmp_retry_count

int pmp_retry_count = PMP_DEFAULT_RETRY

static

Definition at line 138 of file ata_pmp.c.

Referenced by pmpstart().

pmpcleanup

periph_dtor_t pmpcleanup

static

Definition at line 120 of file ata_pmp.c.

Referenced by pmpasync().

pmpdriver

struct periph_driver pmpdriver

static

Initial value:

=
{
        pmpinit, "pmp",
        TAILQ_HEAD_INITIALIZER(pmpdriver.units),  0,
        CAM_PERIPH_DRV_EARLY
}

Definition at line 151 of file ata_pmp.c.

pmpinit

static void pmpinit ( void  )

static

Definition at line 115 of file ata_pmp.c.

pmponinvalidate

periph_oninv_t pmponinvalidate

static

Definition at line 122 of file ata_pmp.c.

Referenced by pmpasync().

pmpregister

periph_ctor_t pmpregister

static

Definition at line 119 of file ata_pmp.c.

Referenced by pmpasync().

pmpstart

periph_start_t pmpstart

static

Definition at line 121 of file ata_pmp.c.

Referenced by pmpasync().