Date: Tue, 28 Mar 2000 21:16:38 +0100 (BST) From: Nick Hibma <n_hibma@calcaphon.com> To: FreeBSD SCSI Mailing List <scsi@FreeBSD.org> Subject: Bus rescan (second try) Message-ID: <Pine.BSF.4.20.0003281838430.1890-100000@localhost>
next in thread | raw e-mail | index | archive | help
The fragment below is intended to rescan the bus on connection of a
device. The problem is that cam_periph_find always returns NULL, because
a SIM does not seem to have a periph.
An option would be to make xpt_periph available in cam_periph.h. Or
someone telling me how to do the rescan on connection of a drive.
I think I've tried everything imaginable.
Nick
/* Create a path and lookup the peripheral for the SIM */
if (xpt_create_path(&path, NULL, cam_sim_path(umass_sim),
UMASS_SCSIID_HOST, 0)
!= CAM_REQ_CMP)
return;
periph = cam_periph_find(path, DEVNAME);
if (periph == NULL) {
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: no periph\n",
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
device_get_unit(sc->sc_dev), 0));
xpt_free_path(path);
return;
}
xpt_free_path(path);
/* Lookup the path again, but now include the periph in the path*/
if (xpt_create_path(&path, periph, cam_sim_path(umass_sim),
UMASS_SCSIID_HOST, 0)
!= CAM_REQ_CMP)
return;
xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
ccb->ccb_h.func_code = XPT_SCAN_BUS;
ccb->ccb_h.cbfcnp = umass_cam_rescan_callback;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb);
--
n_hibma@webweaving.org
n_hibma@freebsd.org USB project
http://www.etla.net/~n_hibma/
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.20.0003281838430.1890-100000>