#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/poll.h>
#include <sys/vnode.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/devicestat.h>
#include <sys/proc.h>
#include <sys/types.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_sim.h>
#include <cam/scsi/scsi_targetio.h>

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Data Structures
struct	targ_cmd_descr

struct	targ_softc

Macros
#define	targ_descr periph_priv.entries[1].ptr

Enumerations
enum	targ_state { TARG_STATE_RESV = 0x00 , TARG_STATE_OPENED = 0x01 , TARG_STATE_LUN_ENABLED = 0x02 }

Functions
	__FBSDID ("$FreeBSD$")

	TAILQ_HEAD (descr_queue, targ_cmd_descr)

static void	targreadfiltdetach (struct knote *kn)

static int	targreadfilt (struct knote *kn, long hint)

static cam_status	targendislun (struct cam_path *path, int enable, int grp6_len, int grp7_len)

static cam_status	targenable (struct targ_softc softc, struct cam_path path, int grp6_len, int grp7_len)

static cam_status	targdisable (struct targ_softc *softc)

static int	targusermerge (struct targ_softc softc, struct targ_cmd_descr descr, union ccb *ccb)

static int	targsendccb (struct targ_softc softc, union ccb ccb, struct targ_cmd_descr *descr)

static void	targdone (struct cam_periph periph, union ccb done_ccb)

static int	targreturnccb (struct targ_softc softc, union ccb ccb)

static union ccb *	targgetccb (struct targ_softc *softc, xpt_opcode type, int priority)

static void	targfreeccb (struct targ_softc softc, union ccb ccb)

static struct targ_cmd_descr *	targgetdescr (struct targ_softc *softc)

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

static void	abort_all_pending (struct targ_softc *softc)

static void	notify_user (struct targ_softc *softc)

static int	targcamstatus (cam_status status)

static size_t	targccblen (xpt_opcode func_code)

	PERIPHDRIVER_DECLARE (targ, targdriver)

static	MALLOC_DEFINE (M_TARG, "TARG", "TARG data")

static void	targcdevdtor (void *data)

static int	targopen (struct cdev dev, int flags, int fmt, struct thread td)

static int	targioctl (struct cdev dev, u_long cmd, caddr_t addr, int flag, struct thread td)

static int	targpoll (struct cdev dev, int poll_events, struct thread td)

static int	targkqfilter (struct cdev dev, struct knote kn)

static cam_status	targctor (struct cam_periph periph, void arg)

static void	targdtor (struct cam_periph *periph)

static int	targwrite (struct cdev dev, struct uio uio, int ioflag)

static void	targstart (struct cam_periph periph, union ccb start_ccb)

static int	targread (struct cdev dev, struct uio uio, int ioflag)

Variables
static d_open_t	targopen

static d_read_t	targread

static d_write_t	targwrite

static d_ioctl_t	targioctl

static d_poll_t	targpoll

static d_kqfilter_t	targkqfilter

static struct filterops	targread_filtops

static struct cdevsw	targ_cdevsw

static periph_ctor_t	targctor

static periph_dtor_t	targdtor

static periph_start_t	targstart

static periph_init_t	targinit

static struct periph_driver	targdriver

Macro Definition Documentation

◆ targ_descr

#define targ_descr periph_priv.entries[1].ptr

Definition at line 67 of file scsi_target.c.

Enumeration Type Documentation

◆ targ_state

enum targ_state

Enumerator
TARG_STATE_RESV
TARG_STATE_OPENED
TARG_STATE_LUN_ENABLED

Definition at line 71 of file scsi_target.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ abort_all_pending()

static void abort_all_pending ( struct targ_softc * softc )

static

Definition at line 1014 of file scsi_target.c.

References ccb_abort::abort_ccb, targ_softc::abort_queue, ccb::cab, CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_lock, cam_periph_sleep, cam_periph_unlock, CAM_PRIORITY_NORMAL, CAM_REQ_CMP, CAM_REQ_CMP_ERR, ccb_abort::ccb_h, ccb::ccb_h, ccb_hdr::func_code, notify_user(), ccb_hdr::path, targ_softc::path, targ_softc::pending_ccb_queue, targ_softc::periph, ccb_hdr::periph_links, ccb_hdr::status, targ_softc::user_ccb_queue, targ_softc::work_queue, XPT_ABORT, xpt_action(), xpt_print(), and xpt_setup_ccb().

Referenced by targdisable().

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◆ MALLOC_DEFINE()

static MALLOC_DEFINE	(	M_TARG	,
		"TARG"	,
		"TARG data"
	)

static

◆ notify_user()

static void notify_user ( struct targ_softc * softc )

static

Definition at line 1067 of file scsi_target.c.

References targ_softc::read_select, and targ_softc::user_ccb_queue.

Referenced by abort_all_pending(), targdone(), and targstart().

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◆ PERIPHDRIVER_DECLARE()

PERIPHDRIVER_DECLARE	(	targ	,
		targdriver
	)

◆ TAILQ_HEAD()

TAILQ_HEAD	(	descr_queue	,
		targ_cmd_descr
	)

◆ targasync()

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

static

Definition at line 1006 of file scsi_target.c.

Referenced by targenable().

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◆ targcamstatus()

static int targcamstatus ( cam_status status )

static

Definition at line 1080 of file scsi_target.c.

References CAM_BUSY, CAM_CMD_TIMEOUT, CAM_DEV_NOT_THERE, CAM_FUNC_NOTAVAIL, CAM_LUN_ALRDY_ENA, CAM_PATH_INVALID, CAM_PROVIDE_FAIL, CAM_REQ_ABORTED, CAM_REQ_CMP, CAM_REQ_CMP_ERR, CAM_REQ_INPROG, CAM_REQ_INVALID, CAM_REQUEUE_REQ, CAM_RESRC_UNAVAIL, CAM_STATUS_MASK, and CAM_UA_ABORT.

Referenced by targioctl().

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◆ targccblen()

static size_t targccblen ( xpt_opcode func_code )

static

Definition at line 1117 of file scsi_target.c.

References XPT_ABORT, XPT_ACCEPT_TARGET_IO, XPT_CONT_TARGET_IO, XPT_DEBUG, XPT_EN_LUN, XPT_IMMED_NOTIFY, XPT_IMMEDIATE_NOTIFY, XPT_PATH_INQ, XPT_REL_SIMQ, and XPT_SCSI_IO.

Referenced by targgetccb(), targreturnccb(), and targusermerge().

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◆ targcdevdtor()

static void targcdevdtor ( void * data )

static

Definition at line 169 of file scsi_target.c.

References cam_periph_acquire(), cam_periph_invalidate(), cam_periph_lock, cam_periph_release(), cam_periph_unlock, cam_periph::softc, and targdisable().

Referenced by targopen().

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◆ targctor()

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

static

Definition at line 482 of file scsi_target.c.

References CAM_REQ_CMP, cam_periph::path, targ_softc::path, targ_softc::periph, and cam_periph::softc.

◆ targdisable()

static cam_status targdisable ( struct targ_softc * softc )

static

Definition at line 457 of file scsi_target.c.

References abort_all_pending(), CAM_DEBUG, CAM_DEBUG_PERIPH, CAM_REQ_CMP, targ_softc::path, targ_softc::state, TARG_STATE_LUN_ENABLED, and targendislun().

Referenced by targcdevdtor(), and targioctl().

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◆ targdone()

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

static

Definition at line 761 of file scsi_target.c.

References CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_lock, cam_periph_unlock, ccb::ccb_h, ccb_hdr::func_code, notify_user(), cam_periph::path, targ_softc::pending_ccb_queue, targ_softc::periph, cam_periph::softc, targ_softc::state, TARG_STATE_LUN_ENABLED, targfreeccb(), targ_softc::user_ccb_queue, XPT_ACCEPT_TARGET_IO, XPT_CONT_TARGET_IO, XPT_IMMED_NOTIFY, and XPT_IMMEDIATE_NOTIFY.

Referenced by targgetccb(), targioctl(), and targsendccb().

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◆ targdtor()

static void targdtor ( struct cam_periph * periph )

static

Definition at line 495 of file scsi_target.c.

References targ_softc::abort_queue, targ_softc::path, targ_softc::periph, cam_periph::softc, targfreeccb(), and targ_softc::user_ccb_queue.

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◆ targenable()

static cam_status targenable	(	struct targ_softc *	softc,
		struct cam_path *	path,
		int	grp6_len,
		int	grp7_len
	)

static

Definition at line 383 of file scsi_target.c.

References CAM_FUNC_NOTAVAIL, CAM_LUN_ALRDY_ENA, cam_periph_alloc(), CAM_PERIPH_BIO, cam_periph_find(), cam_periph_invalidate(), CAM_REQ_CMP, CAM_STATUS_MASK, ccb_pathinq::ccb_h, ccb_pathinq::maxio, targ_softc::maxio, targ_softc::path, targ_softc::periph, PIT_PROCESSOR, cam_periph::softc, targ_softc::state, ccb_hdr::status, TARG_STATE_LUN_ENABLED, targasync(), targctor, targdtor, targendislun(), ccb_pathinq::target_sprt, targstart, cam_periph::unit_number, and xpt_path_inq().

Referenced by targioctl().

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◆ targendislun()

static cam_status targendislun	(	struct cam_path *	path,
		int	enable,
		int	grp6_len,
		int	grp7_len
	)

static

Definition at line 359 of file scsi_target.c.

References CAM_PRIORITY_NORMAL, CAM_REQ_CMP, CAM_STATUS_MASK, ccb_en_lun::ccb_h, ccb_en_lun::enable, ccb_hdr::func_code, ccb_en_lun::grp6_len, ccb_en_lun::grp7_len, ccb_hdr::status, xpt_action(), XPT_EN_LUN, xpt_print(), and xpt_setup_ccb().

Referenced by targdisable(), and targenable().

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◆ targfreeccb()

static void targfreeccb	(	struct targ_softc *	softc,
		union ccb *	ccb
	)

static

Definition at line 954 of file scsi_target.c.

References CAM_DEBUG_PERIPH, CAM_DEBUG_PRINT, ccb::ccb_h, ccb_hdr::func_code, XPT_ACCEPT_TARGET_IO, XPT_FC_IS_QUEUED, XPT_IMMED_NOTIFY, XPT_IMMEDIATE_NOTIFY, and xpt_release_ccb().

Referenced by targdone(), targdtor(), and targreturnccb().

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◆ targgetccb()

static union ccb * targgetccb	(	struct targ_softc *	softc,
		xpt_opcode	type,
		int	priority
	)

static

Definition at line 931 of file scsi_target.c.

References CAM_DEBUG, CAM_DEBUG_PERIPH, ccb_hdr::cbfcnp, ccb, ccb::ccb_h, ccb_hdr::func_code, targ_softc::path, targccblen(), targdone(), targgetdescr(), and xpt_setup_ccb().

Referenced by targwrite().

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◆ targgetdescr()

static struct targ_cmd_descr * targgetdescr ( struct targ_softc * softc )

static

Definition at line 983 of file scsi_target.c.

References targ_cmd_descr::mapinfo, and cam_periph_map_info::num_bufs_used.

Referenced by targgetccb(), and targwrite().

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◆ targioctl()

static int targioctl	(	struct cdev *	dev,
		u_long	cmd,
		caddr_t	addr,
		int	flag,
		struct thread *	td
	)

static

Definition at line 227 of file scsi_target.c.

References CAM_DEBUG_NONE, CAM_DEBUG_PERIPH, CAM_DEV_NOT_THERE, cam_periph_lock, cam_periph_unlock, CAM_PRIORITY_NORMAL, CAM_PROVIDE_FAIL, CAM_REQ_CMP, CAM_STATUS_MASK, ccb_hdr::cbfcnp, ccb_debug::ccb_h, ccb_debug::flags, ccb_hdr::func_code, ioc_enable_lun::grp6_len, ioc_enable_lun::grp7_len, ioc_enable_lun::lun_id, targ_softc::path, ioc_enable_lun::path_id, targ_softc::periph, targ_softc::state, ccb_hdr::status, TARG_STATE_LUN_ENABLED, targcamstatus(), targdisable(), targdone(), targenable(), ioc_enable_lun::target_id, TARGIOCDEBUG, TARGIOCDISABLE, TARGIOCENABLE, xpt_action(), xpt_create_path(), XPT_DEBUG, xpt_free_path(), xpt_path_lock, xpt_path_unlock, and xpt_setup_ccb().

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◆ targkqfilter()

static int targkqfilter	(	struct cdev *	dev,
		struct knote *	kn
	)

static

Definition at line 322 of file scsi_target.c.

References targ_softc::read_select, and targread_filtops.

◆ targopen()

static int targopen	(	struct cdev *	dev,
		int	flags,
		int	fmt,
		struct thread *	td
	)

static

Definition at line 204 of file scsi_target.c.

References targ_softc::abort_queue, targ_softc::path, targ_softc::pending_ccb_queue, targ_softc::periph, targ_softc::read_select, targ_softc::state, TARG_STATE_OPENED, targcdevdtor(), targ_softc::user_ccb_queue, and targ_softc::work_queue.

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◆ targpoll()

static int targpoll	(	struct cdev *	dev,
		int	poll_events,
		struct thread *	td
	)

static

Definition at line 296 of file scsi_target.c.

References targ_softc::abort_queue, cam_periph_lock, cam_periph_unlock, targ_softc::periph, targ_softc::read_select, and targ_softc::user_ccb_queue.

◆ targread()

static int targread	(	struct cdev *	dev,
		struct uio *	uio,
		int	ioflag
	)

static

Definition at line 800 of file scsi_target.c.

References targ_softc::abort_queue, CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_lock, cam_periph_sleep, cam_periph_unlock, CAM_REQ_ABORTED, ccb::ccb_h, targ_softc::path, targ_softc::periph, ccb_hdr::status, targreturnccb(), and targ_softc::user_ccb_queue.

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◆ targreadfilt()

static int targreadfilt	(	struct knote *	kn,
		long	hint
	)

static

Definition at line 344 of file scsi_target.c.

References targ_softc::abort_queue, cam_periph_lock, cam_periph_unlock, targ_softc::periph, and targ_softc::user_ccb_queue.

◆ targreadfiltdetach()

static void targreadfiltdetach ( struct knote * kn )

static

Definition at line 334 of file scsi_target.c.

References targ_softc::read_select.

◆ targreturnccb()

static int targreturnccb	(	struct targ_softc *	softc,
		union ccb *	ccb
	)

static

Definition at line 899 of file scsi_target.c.

References CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_unmapmem(), ccb::ccb_h, ccb_hdr::func_code, targ_cmd_descr::mapinfo, cam_periph_map_info::num_bufs_used, targ_softc::path, ccb_hdr::retry_count, targccblen(), targfreeccb(), and xpt_print().

Referenced by targread(), and targwrite().

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◆ targsendccb()

static int targsendccb	(	struct targ_softc *	softc,
		union ccb *	ccb,
		struct targ_cmd_descr *	descr
	)

static

Definition at line 710 of file scsi_target.c.

References CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_mapmem(), CAM_REQ_CMP_ERR, ccb_hdr::cbfcnp, ccb::ccb_h, ccb_hdr::func_code, targ_cmd_descr::mapinfo, targ_softc::maxio, cam_periph_map_info::num_bufs_used, targ_softc::path, targ_softc::pending_ccb_queue, ccb_hdr::periph_links, ccb_hdr::status, targdone(), xpt_action(), XPT_CONT_TARGET_IO, XPT_DEV_MATCH, and XPT_FC_IS_QUEUED.

Referenced by targstart(), and targwrite().

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◆ targstart()

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

static

Definition at line 616 of file scsi_target.c.

References targ_softc::abort_queue, CAM_DEBUG, CAM_DEBUG_PERIPH, CAM_REQ_CMP_ERR, notify_user(), cam_periph::path, targ_softc::path, targ_softc::periph, cam_periph::softc, targsendccb(), targusermerge(), targ_softc::work_queue, xpt_print(), xpt_release_ccb(), and xpt_schedule().

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◆ targusermerge()

static int targusermerge	(	struct targ_softc *	softc,
		struct targ_cmd_descr *	descr,
		union ccb *	ccb
	)

static

Definition at line 653 of file scsi_target.c.

References ccb_abort::abort_ccb, CAM_DEBUG, CAM_DEBUG_PERIPH, CAM_PATH_INVALID, CAM_REQ_CMP_ERR, ccb_abort::ccb_h, ccb::ccb_h, ccb_hdr::flags, ccb_hdr::func_code, targ_softc::path, targ_softc::pending_ccb_queue, ccb_hdr::retry_count, ccb_hdr::status, targccblen(), ccb_hdr::timeout, XPT_ABORT, and xpt_setup_ccb().

Referenced by targstart(), and targwrite().

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◆ targwrite()

static int targwrite	(	struct cdev *	dev,
		struct uio *	uio,
		int	ioflag
	)

static

Definition at line 524 of file scsi_target.c.

References CAM_DEBUG, CAM_DEBUG_PERIPH, cam_periph_lock, cam_periph_unlock, CAM_PRIORITY_NONE, ccb, ccb::ccb_h, targ_softc::path, targ_softc::pending_ccb_queue, targ_softc::periph, targgetccb(), targgetdescr(), targreturnccb(), targsendccb(), targusermerge(), targ_softc::work_queue, XPT_ACCEPT_TARGET_IO, xpt_action(), XPT_FC_QUEUED, XPT_IMMED_NOTIFY, XPT_IMMEDIATE_NOTIFY, and xpt_schedule().

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Variable Documentation

◆ targ_cdevsw

struct cdevsw targ_cdevsw

static

Initial value:

= {
        .d_version =    D_VERSION,
        .d_open =       targopen,
        .d_read =       targread,
        .d_write =      targwrite,
        .d_ioctl =      targioctl,
        .d_poll =       targpoll,
        .d_name =       "targ",
        .d_kqfilter =   targkqfilter
}

Definition at line 116 of file scsi_target.c.

◆ targctor

periph_ctor_t targctor

static

Definition at line 133 of file scsi_target.c.

Referenced by targenable().

◆ targdriver

struct periph_driver targdriver

static

Initial value:

=
{
        targinit, "targ",
        TAILQ_HEAD_INITIALIZER(targdriver.units),  0
}

Definition at line 158 of file scsi_target.c.

◆ targdtor

periph_dtor_t targdtor

static

Definition at line 134 of file scsi_target.c.

Referenced by targenable().

◆ targinit

static void targinit ( void )

static

Definition at line 150 of file scsi_target.c.

◆ targioctl

d_ioctl_t targioctl

static

Definition at line 105 of file scsi_target.c.

◆ targkqfilter

d_kqfilter_t targkqfilter

static

Definition at line 107 of file scsi_target.c.

◆ targopen

d_open_t targopen

static

Definition at line 102 of file scsi_target.c.

◆ targpoll

d_poll_t targpoll

static

Definition at line 106 of file scsi_target.c.

◆ targread

d_read_t targread

static

Definition at line 103 of file scsi_target.c.

◆ targread_filtops

struct filterops targread_filtops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = targreadfiltdetach,
        .f_event = targreadfilt,
}

Definition at line 110 of file scsi_target.c.

Referenced by targkqfilter().

◆ targstart

periph_start_t targstart

static

Definition at line 135 of file scsi_target.c.

Referenced by targenable().

◆ targwrite

d_write_t targwrite

static

Definition at line 104 of file scsi_target.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ targ_descr

Enumeration Type Documentation

◆ targ_state

Function Documentation

◆ __FBSDID()

◆ abort_all_pending()

◆ MALLOC_DEFINE()

◆ notify_user()

◆ PERIPHDRIVER_DECLARE()

◆ TAILQ_HEAD()

◆ targasync()

◆ targcamstatus()

◆ targccblen()

◆ targcdevdtor()

◆ targctor()

◆ targdisable()

◆ targdone()

◆ targdtor()

◆ targenable()

◆ targendislun()

◆ targfreeccb()

◆ targgetccb()

◆ targgetdescr()

◆ targioctl()

◆ targkqfilter()

◆ targopen()

◆ targpoll()

◆ targread()

◆ targreadfilt()

◆ targreadfiltdetach()

◆ targreturnccb()

◆ targsendccb()

◆ targstart()

◆ targusermerge()

◆ targwrite()

Variable Documentation

◆ targ_cdevsw

◆ targctor

◆ targdriver

◆ targdtor

◆ targinit

◆ targioctl

◆ targkqfilter

◆ targopen

◆ targpoll

◆ targread

◆ targread_filtops

◆ targstart

◆ targwrite