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Detach black hole device on AC_PATH_DEREGISTERED.

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This commit is contained in:
Hidetoshi Shimokawa 2003-09-25 05:02:19 +00:00
parent f3fd831cdd
commit 388f522d79
1 changed files with 20 additions and 19 deletions
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39
sys/cam/scsi/scsi_targ_bh.c
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@ -167,7 +167,7 @@ targbhinit(void)
xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_PATH_REGISTERED;
csa.event_enable = AC_PATH_REGISTERED | AC_PATH_DEREGISTERED;
csa.callback = targbhasync;
csa.callback_arg = NULL;
xpt_action((union ccb *)&csa);
@ -185,15 +185,26 @@ static void
targbhasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg)
{
struct cam_periph *periph;
struct cam_path *new_path;
cam_status status;
/*
* Allocate a peripheral instance for
* this target instance.
*/
status = xpt_create_path(&new_path, NULL,
xpt_path_path_id(path),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status != CAM_REQ_CMP) {
printf("targbhasync: Unable to create path "
"due to status 0x%x\n", status);
return;
}
periph = (struct cam_periph *)callback_arg;
switch (code) {
case AC_PATH_REGISTERED:
{
struct ccb_pathinq *cpi;
struct cam_path *new_path;
cam_status status;
cpi = (struct ccb_pathinq *)arg;
@ -201,35 +212,23 @@ targbhasync(void *callback_arg, u_int32_t code,
if ((cpi->target_sprt & PIT_PROCESSOR) == 0)
break;
/*
* Allocate a peripheral instance for
* this target instance.
*/
status = xpt_create_path(&new_path, NULL,
xpt_path_path_id(path),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status != CAM_REQ_CMP) {
printf("targbhasync: Unable to create path "
"due to status 0x%x\n", status);
break;
}
status = cam_periph_alloc(targbhctor, NULL, targbhdtor,
targbhstart,
"targbh", CAM_PERIPH_BIO,
new_path, targbhasync,
AC_PATH_REGISTERED,
cpi);
xpt_free_path(new_path);
break;
}
case AC_PATH_DEREGISTERED:
{
targbhdislun(periph);
cam_periph_invalidate(cam_periph_find(new_path, "targbh"));
break;
}
default:
break;
}
xpt_free_path(new_path);
}
/* Attempt to enable our lun */
@ -439,6 +438,8 @@ targbhdtor(struct cam_periph *periph)
case 1:
/* FALLTHROUGH */
default:
/* XXX Wait for callback of targbhdislun() */
tsleep(softc, PRIBIO, "targbh", hz/2);
free(softc, M_DEVBUF);
break;
}