#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/types.h>
#include <sys/bio.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/malloc.h>
#include <sys/uio.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/cam_queue.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_debug.h>
#include <cam/cam_sim.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>

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Data Structures
struct	targbh_softc

struct	targbh_cmd_desc

Macros
#define	MAX_ACCEPT 8

#define	MAX_IMMEDIATE 16

#define	MAX_BUF_SIZE 256 /* Max inquiry/sense/mode page transfer */

#define	ccb_type ppriv_field0

#define	ccb_descr ppriv_ptr1

#define	ccb_atio ppriv_ptr1

Enumerations
enum	targbh_state { TARGBH_STATE_NORMAL , TARGBH_STATE_EXCEPTION , TARGBH_STATE_TEARDOWN }

enum	targbh_flags { TARGBH_FLAG_NONE = 0x00 , TARGBH_FLAG_LUN_ENABLED = 0x01 }

enum	targbh_ccb_types { TARGBH_CCB_WORKQ }

Functions
	__FBSDID ("$FreeBSD$")

static	MALLOC_DEFINE (M_SCSIBH, "SCSI bh", "SCSI blackhole buffers")

	TAILQ_HEAD (ccb_queue, ccb_hdr)

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

static cam_status	targbhenlun (struct cam_periph *periph)

static cam_status	targbhdislun (struct cam_periph *periph)

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

static struct targbh_cmd_desc *	targbhallocdescr (void)

static void	targbhfreedescr (struct targbh_cmd_desc *buf)

	PERIPHDRIVER_DECLARE (targbh, targbhdriver)

static cam_status	targbhctor (struct cam_periph periph, void arg)

static void	targbhdtor (struct cam_periph *periph)

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

Variables
static struct scsi_inquiry_data	no_lun_inq_data

static struct scsi_sense_data_fixed	no_lun_sense_data

static const int	request_sense_size = offsetof(struct scsi_sense_data_fixed, fru)

static periph_init_t	targbhinit

static periph_ctor_t	targbhctor

static periph_dtor_t	targbhdtor

static periph_start_t	targbhstart

static struct periph_driver	targbhdriver

Macro Definition Documentation

◆ ccb_atio

#define ccb_atio ppriv_ptr1

Definition at line 82 of file scsi_targ_bh.c.

◆ ccb_descr

#define ccb_descr ppriv_ptr1

Definition at line 79 of file scsi_targ_bh.c.

◆ ccb_type

#define ccb_type ppriv_field0

Definition at line 78 of file scsi_targ_bh.c.

◆ MAX_ACCEPT

#define MAX_ACCEPT 8

Definition at line 73 of file scsi_targ_bh.c.

◆ MAX_BUF_SIZE

#define MAX_BUF_SIZE 256 /* Max inquiry/sense/mode page transfer */

Definition at line 75 of file scsi_targ_bh.c.

◆ MAX_IMMEDIATE

#define MAX_IMMEDIATE 16

Definition at line 74 of file scsi_targ_bh.c.

Enumeration Type Documentation

◆ targbh_ccb_types

enum targbh_ccb_types

Enumerator
TARGBH_CCB_WORKQ

Definition at line 69 of file scsi_targ_bh.c.

◆ targbh_flags

enum targbh_flags

Enumerator
TARGBH_FLAG_NONE
TARGBH_FLAG_LUN_ENABLED

Definition at line 64 of file scsi_targ_bh.c.

◆ targbh_state

enum targbh_state

Enumerator
TARGBH_STATE_NORMAL
TARGBH_STATE_EXCEPTION
TARGBH_STATE_TEARDOWN

Definition at line 58 of file scsi_targ_bh.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ MALLOC_DEFINE()

static MALLOC_DEFINE	(	M_SCSIBH	,
		"SCSI bh"	,
		"SCSI blackhole buffers"
	)

static

◆ PERIPHDRIVER_DECLARE()

PERIPHDRIVER_DECLARE	(	targbh	,
		targbhdriver
	)

◆ TAILQ_HEAD()

TAILQ_HEAD	(	ccb_queue	,
		ccb_hdr
	)

◆ targbhallocdescr()

static struct targbh_cmd_desc * targbhallocdescr ( void )

static

Definition at line 741 of file scsi_targ_bh.c.

References targbh_cmd_desc::backing_store, MAX_BUF_SIZE, and targbh_cmd_desc::max_size.

Referenced by targbhenlun().

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◆ targbhasync()

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

static

Definition at line 175 of file scsi_targ_bh.c.

References AC_PATH_DEREGISTERED, AC_PATH_REGISTERED, CAM_LUN_WILDCARD, cam_periph_alloc(), CAM_PERIPH_BIO, cam_periph_find(), cam_periph_invalidate(), CAM_REQ_CMP, CAM_TARGET_WILDCARD, ccb_pathinq::ccb_h, ccb_hdr::path_id, PIT_PROCESSOR, targbhasync(), targbhctor, targbhdtor, targbhstart, ccb_pathinq::target_sprt, xpt_create_path(), xpt_free_path(), and xpt_path_path_id().

Referenced by targbhasync().

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◆ targbhctor()

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

static

Definition at line 394 of file scsi_targ_bh.c.

References targbh_softc::accept_tio_list, cam_periph_invalidate(), CAM_REQ_CMP, CAM_REQ_CMP_ERR, targbh_softc::immed_notify_slist, targbh_softc::init_level, targbh_softc::pending_queue, cam_periph::softc, targbh_softc::state, TARGBH_STATE_NORMAL, targbhenlun(), and targbh_softc::work_queue.

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◆ targbhdislun()

static cam_status targbhdislun ( struct cam_periph * periph )

static

Definition at line 343 of file scsi_targ_bh.c.

References ccb_abort::abort_ccb, targbh_softc::accept_tio_list, ccb::atio, ccb::cab, CAM_PRIORITY_NORMAL, CAM_REQ_CMP, ccb_accept_tio::ccb_h, ccb_abort::ccb_h, ccb_en_lun::ccb_h, ccb::ccb_h, ccb::cel, ccb_en_lun::enable, targbh_softc::flags, ccb_hdr::func_code, targbh_softc::immed_notify_slist, cam_periph::path, cam_periph::softc, ccb_hdr::status, TARGBH_FLAG_LUN_ENABLED, XPT_ABORT, xpt_action(), XPT_EN_LUN, and xpt_setup_ccb().

Referenced by targbhdtor(), and targbhenlun().

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◆ targbhdone()

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

static

Definition at line 529 of file scsi_targ_bh.c.

References ccb::atio, scsi_inquiry::byte2, CAM_DEBUG, CAM_DEBUG_SUBTRACE, CAM_DEV_QFRZN, CAM_DIR_IN, CAM_DIR_NONE, CAM_DIS_DISCONNECT, CAM_LUN_WILDCARD, CAM_PRIORITY_NORMAL, cam_release_devq(), CAM_REQ_ABORTED, CAM_TARGET_WILDCARD, ccb_accept_tio::ccb_h, ccb::ccb_h, cdb_t::cdb_bytes, ccb_accept_tio::cdb_io, targbh_cmd_desc::data, targbh_cmd_desc::data_increment, targbh_cmd_desc::data_resid, ccb_hdr::flags, ccb_hdr::func_code, INQUIRY, scsi_request_sense::length, scsi_inquiry::length, no_lun_inq_data, no_lun_sense_data, scsi_inquiry::page_code, ccb_hdr::path, cam_periph::path, targbh_softc::pending_queue, REQUEST_SENSE, request_sense_size, scsi_2btoul(), SCSI_CDB6_LEN, SCSI_STATUS_CHECK_COND, SCSI_STATUS_OK, ccb_accept_tio::sense_data, ccb_accept_tio::sense_len, SI_EVPD, cam_periph::softc, targbh_softc::state, ccb_hdr::status, targbh_cmd_desc::status, TARGBH_STATE_TEARDOWN, targbhfreedescr(), ccb_hdr::target_id, ccb_hdr::target_lun, targbh_cmd_desc::timeout, targbh_softc::work_queue, XPT_ACCEPT_TARGET_IO, xpt_action(), XPT_CONT_TARGET_IO, xpt_free_ccb(), XPT_IMMEDIATE_NOTIFY, xpt_release_ccb(), and xpt_schedule().

Referenced by targbhenlun(), and targbhstart().

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◆ targbhdtor()

static void targbhdtor ( struct cam_periph * periph )

static

Definition at line 421 of file scsi_targ_bh.c.

References cam_periph_sleep, targbh_softc::init_level, cam_periph::softc, targbh_softc::state, TARGBH_STATE_TEARDOWN, and targbhdislun().

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◆ targbhenlun()

static cam_status targbhenlun ( struct cam_periph * periph )

static

Definition at line 232 of file scsi_targ_bh.c.

References targbh_softc::accept_tio_list, CAM_PRIORITY_NORMAL, CAM_REQ_CMP, CAM_REQ_CMP_ERR, CAM_REQ_INPROG, CAM_RESRC_UNAVAIL, ccb_hdr::cbfcnp, ccb_accept_tio::ccb_h, ccb_immediate_notify::ccb_h, ccb::ccb_h, ccb::cel, ccb_en_lun::enable, targbh_softc::flags, ccb_hdr::func_code, ccb_en_lun::grp6_len, ccb_en_lun::grp7_len, targbh_softc::immed_notify_slist, MAX_ACCEPT, cam_periph::path, cam_periph::softc, ccb_hdr::status, targbh_cmd_desc::status, TARGBH_FLAG_LUN_ENABLED, targbhallocdescr(), targbhdislun(), targbhdone(), XPT_ACCEPT_TARGET_IO, xpt_action(), XPT_EN_LUN, XPT_IMMEDIATE_NOTIFY, xpt_print(), and xpt_setup_ccb().

Referenced by targbhctor().

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◆ targbhfreedescr()

static void targbhfreedescr ( struct targbh_cmd_desc * buf )

static

Definition at line 764 of file scsi_targ_bh.c.

References targbh_cmd_desc::backing_store.

Referenced by targbhdone().

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◆ targbhstart()

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

static

Definition at line 445 of file scsi_targ_bh.c.

References CAM_DEBUG, CAM_DEBUG_SUBTRACE, CAM_DEV_QFRZN, CAM_DIR_MASK, CAM_DIS_DISCONNECT, cam_fill_ctio(), CAM_PRIORITY_NORMAL, cam_release_devq(), CAM_SEND_SENSE, CAM_SEND_STATUS, CAM_TAG_ACTION_VALID, ccb_accept_tio::ccb_h, ccb::ccb_h, ccb::csio, targbh_cmd_desc::data, targbh_cmd_desc::data_increment, targbh_cmd_desc::data_resid, ccb_hdr::flags, ccb_accept_tio::init_id, MSG_SIMPLE_Q_TAG, cam_periph::path, targbh_softc::pending_queue, ccb_scsiio::sense_data, ccb_accept_tio::sense_data, ccb_scsiio::sense_len, ccb_accept_tio::sense_len, cam_periph::softc, ccb_hdr::status, targbh_cmd_desc::status, ccb_accept_tio::tag_id, TARGBH_CCB_WORKQ, targbhdone(), ccb_hdr::target_id, ccb_hdr::target_lun, targbh_cmd_desc::timeout, targbh_softc::work_queue, xpt_action(), xpt_release_ccb(), and xpt_schedule().

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Variable Documentation

◆ no_lun_inq_data

struct scsi_inquiry_data no_lun_inq_data

static

Initial value:

=
{
        T_NODEVICE | (SID_QUAL_BAD_LU << 5), 0,
        2, 2
}

Definition at line 110 of file scsi_targ_bh.c.

Referenced by targbhdone().

◆ no_lun_sense_data

struct scsi_sense_data_fixed no_lun_sense_data

static

Initial value:

=
{
        SSD_CURRENT_ERROR|SSD_ERRCODE_VALID,
        0,
        SSD_KEY_NOT_READY, 
        { 0, 0, 0, 0 },
        offsetof(struct scsi_sense_data_fixed, fru)
                   - offsetof(struct scsi_sense_data_fixed, extra_len),
        { 0, 0, 0, 0 },
        
        0x25, 0
}

Definition at line 116 of file scsi_targ_bh.c.

Referenced by targbhdone().

◆ request_sense_size

const int request_sense_size = offsetof(struct scsi_sense_data_fixed, fru)

static

Definition at line 129 of file scsi_targ_bh.c.

Referenced by targbhdone().

◆ targbhctor

periph_ctor_t targbhctor

static

Definition at line 136 of file scsi_targ_bh.c.

Referenced by targbhasync().

◆ targbhdriver

struct periph_driver targbhdriver

static

Initial value:

=
{
        targbhinit, "targbh",
        TAILQ_HEAD_INITIALIZER(targbhdriver.units),  0
}

Definition at line 148 of file scsi_targ_bh.c.

◆ targbhdtor

periph_dtor_t targbhdtor

static

Definition at line 137 of file scsi_targ_bh.c.

Referenced by targbhasync().

◆ targbhinit

static void targbhinit ( void )

static

Definition at line 131 of file scsi_targ_bh.c.

◆ targbhstart

periph_start_t targbhstart

static

Definition at line 138 of file scsi_targ_bh.c.

Referenced by targbhasync().

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ ccb_atio

◆ ccb_descr

◆ ccb_type

◆ MAX_ACCEPT

◆ MAX_BUF_SIZE

◆ MAX_IMMEDIATE

Enumeration Type Documentation

◆ targbh_ccb_types

◆ targbh_flags

◆ targbh_state

Function Documentation

◆ __FBSDID()

◆ MALLOC_DEFINE()

◆ PERIPHDRIVER_DECLARE()

◆ TAILQ_HEAD()

◆ targbhallocdescr()

◆ targbhasync()

◆ targbhctor()

◆ targbhdislun()

◆ targbhdone()

◆ targbhdtor()

◆ targbhenlun()

◆ targbhfreedescr()

◆ targbhstart()

Variable Documentation

◆ no_lun_inq_data

◆ no_lun_sense_data

◆ request_sense_size

◆ targbhctor

◆ targbhdriver

◆ targbhdtor

◆ targbhinit

◆ targbhstart