/*
* mrsas_bus_scan: Perform bus scan
* input: Adapter instance soft state
*
* This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not
* be called in FreeBSD 8.x and later versions, where the bus scan is
* automatic.
*/
int
mrsas_bus_scan(struct mrsas_softc *sc)
{
union ccb *ccb_0;
union ccb *ccb_1;
if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
return (ENOMEM);
}
if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
xpt_free_ccb(ccb_0);
return (ENOMEM);
}
mtx_lock(&sc->sim_lock);
if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb_0);
xpt_free_ccb(ccb_1);
mtx_unlock(&sc->sim_lock);
return (EIO);
}
if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb_0);
xpt_free_ccb(ccb_1);
mtx_unlock(&sc->sim_lock);
return (EIO);
}
mtx_unlock(&sc->sim_lock);
xpt_rescan(ccb_0);
xpt_rescan(ccb_1);
return (0);
}
static void
cfcs_onoffline(void *arg, int online)
{
struct cfcs_softc *softc;
union ccb *ccb;
softc = (struct cfcs_softc *)arg;
mtx_lock(&softc->lock);
softc->online = online;
ccb = xpt_alloc_ccb_nowait();
if (ccb == NULL) {
printf("%s: unable to allocate CCB for rescan\n", __func__);
goto bailout;
}
if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
cam_sim_path(softc->sim), CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
printf("%s: can't allocate path for rescan\n", __func__);
xpt_free_ccb(ccb);
goto bailout;
}
xpt_rescan(ccb);
bailout:
mtx_unlock(&softc->lock);
}
static void *
nvme_sim_new_ns(struct nvme_namespace *ns, void *sc_arg)
{
struct nvme_sim_softc *sc = sc_arg;
struct nvme_controller *ctrlr = sc->s_ctrlr;
union ccb *ccb;
mtx_lock(&ctrlr->lock);
ccb = xpt_alloc_ccb_nowait();
if (ccb == NULL) {
printf("unable to alloc CCB for rescan\n");
return (NULL);
}
if (xpt_create_path(&ccb->ccb_h.path, /*periph*/NULL,
cam_sim_path(sc->s_sim), 0, ns->id) != CAM_REQ_CMP) {
printf("unable to create path for rescan\n");
xpt_free_ccb(ccb);
return (NULL);
}
xpt_rescan(ccb);
mtx_unlock(&ctrlr->lock);
return (ns);
}
static int
ic_scan(isc_session_t *sp)
{
union ccb *ccb;
debug_called(8);
sdebug(2, "scanning sid=%d", sp->sid);
sp->flags &= ~ISC_CAMDEVS;
sp->flags |= ISC_SCANWAIT;
ccb = xpt_alloc_ccb();
ccb->ccb_h.path = sp->cam_path;
ccb->ccb_h.cbfcnp = scan_callback;
ccb->ccb_h.spriv_ptr0 = sp;
xpt_rescan(ccb);
while(sp->flags & ISC_SCANWAIT)
tsleep(sp, PRIBIO, "ffp", 5*hz); // the timeout time should
// be configurable
sdebug(2, "# of luns=%d", sp->target_nluns);
if(sp->target_nluns > 0) {
sp->flags |= ISC_CAMDEVS;
return 0;
}
return ENODEV;
}
void isci_controller_domain_discovery_complete(
struct ISCI_CONTROLLER *isci_controller, struct ISCI_DOMAIN *isci_domain)
{
if (!isci_controller->has_been_scanned)
{
/* Controller has not been scanned yet. We'll clear
* the discovery bit for this domain, then check if all bits
* are now clear. That would indicate that all domains are
* done with discovery and we can then proceed with initial
* scan.
*/
isci_controller->initial_discovery_mask &=
~(1 << isci_domain->index);
if (isci_controller->initial_discovery_mask == 0) {
struct isci_softc *driver = isci_controller->isci;
uint8_t next_index = isci_controller->index + 1;
isci_controller->has_been_scanned = TRUE;
/* Unfreeze simq to allow initial scan to proceed. */
xpt_release_simq(isci_controller->sim, TRUE);
#if __FreeBSD_version < 800000
/* When driver is loaded after boot, we need to
* explicitly rescan here for versions <8.0, because
* CAM only automatically scans new buses at boot
* time.
*/
union ccb *ccb = xpt_alloc_ccb_nowait();
xpt_create_path(&ccb->ccb_h.path, xpt_periph,
cam_sim_path(isci_controller->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
xpt_rescan(ccb);
#endif
if (next_index < driver->controller_count) {
/* There are more controllers that need to
* start. So start the next one.
*/
isci_controller_start(
&driver->controllers[next_index]);
}
else
{
/* All controllers have been started and completed discovery.
* Disestablish the config hook while will signal to the
* kernel during boot that it is safe to try to find and
* mount the root partition.
*/
config_intrhook_disestablish(
&driver->config_hook);
}
}
}
}
static void
nvme_sim_rescan_target(struct nvme_controller *ctrlr, struct cam_path *path)
{
union ccb *ccb;
ccb = xpt_alloc_ccb_nowait();
if (ccb == NULL) {
printf("unable to alloc CCB for rescan\n");
return;
}
if (xpt_clone_path(&ccb->ccb_h.path, path) != CAM_REQ_CMP) {
printf("unable to copy path for rescan\n");
xpt_free_ccb(ccb);
return;
}
xpt_rescan(ccb);
}
int
tws_bus_scan(struct tws_softc *sc)
{
union ccb *ccb;
TWS_TRACE_DEBUG(sc, "entry", sc, 0);
if (!(sc->sim))
return(ENXIO);
ccb = xpt_alloc_ccb();
mtx_lock(&sc->sim_lock);
if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
mtx_unlock(&sc->sim_lock);
xpt_free_ccb(ccb);
return(EIO);
}
xpt_rescan(ccb);
mtx_unlock(&sc->sim_lock);
return(0);
}
static void
ata_conn_event(void *context, int dummy)
{
device_t dev = (device_t)context;
struct ata_channel *ch = device_get_softc(dev);
union ccb *ccb;
mtx_lock(&ch->state_mtx);
if (ch->sim == NULL) {
mtx_unlock(&ch->state_mtx);
return;
}
ata_reinit(dev);
if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
return;
if (xpt_create_path(&ccb->ccb_h.path, NULL,
cam_sim_path(ch->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
return;
}
xpt_rescan(ccb);
mtx_unlock(&ch->state_mtx);
}
/*
* Function name: tw_osli_request_bus_scan
* Description: Requests CAM for a scan of the bus.
*
* Input: sc -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_osli_request_bus_scan(struct twa_softc *sc)
{
union ccb *ccb;
tw_osli_dbg_dprintf(3, sc, "entering");
/* If we get here before sc->sim is initialized, return an error. */
if (!(sc->sim))
return(ENXIO);
if ((ccb = xpt_alloc_ccb()) == NULL)
return(ENOMEM);
mtx_lock(sc->sim_lock);
if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
mtx_unlock(sc->sim_lock);
return(EIO);
}
xpt_rescan(ccb);
mtx_unlock(sc->sim_lock);
return(0);
}
/**
* @brief This callback method informs the framework user that the remote
* device is ready and capable of processing IO requests.
*
* @param[in] controller This parameter specifies the controller object
* with which this callback is associated.
* @param[in] domain This parameter specifies the domain object with
* which this callback is associated.
* @param[in] remote_device This parameter specifies the device object with
* which this callback is associated.
*
* @return none
*/
void
scif_cb_remote_device_ready(SCI_CONTROLLER_HANDLE_T controller,
SCI_DOMAIN_HANDLE_T domain, SCI_REMOTE_DEVICE_HANDLE_T remote_device)
{
struct ISCI_REMOTE_DEVICE *isci_remote_device =
sci_object_get_association(remote_device);
struct ISCI_CONTROLLER *isci_controller =
sci_object_get_association(controller);
uint32_t device_index = isci_remote_device->index;
if (isci_controller->remote_device[device_index] == NULL) {
/* This new device is now ready, so put it in the controller's
* remote device list so it is visible to CAM.
*/
isci_controller->remote_device[device_index] =
isci_remote_device;
if (isci_controller->has_been_scanned) {
/* The sim object has been scanned at least once
* already. In that case, create a CCB to instruct
* CAM to rescan this device.
* If the sim object has not been scanned, this device
* will get scanned as part of the initial scan.
*/
union ccb *ccb = xpt_alloc_ccb_nowait();
xpt_create_path(&ccb->ccb_h.path, NULL,
cam_sim_path(isci_controller->sim),
isci_remote_device->index, CAM_LUN_WILDCARD);
xpt_rescan(ccb);
}
}
isci_remote_device_release_device_queue(isci_remote_device);
}
