/*
* 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);
}
/*
* vpo_attach()
*/
static int
vpo_attach(device_t dev)
{
struct vpo_data *vpo = DEVTOSOFTC(dev);
struct cam_devq *devq;
int error;
/* low level attachment */
if (vpo->vpo_isplus) {
if ((error = imm_attach(&vpo->vpo_io)))
return (error);
} else {
if ((error = vpoio_attach(&vpo->vpo_io)))
return (error);
}
/*
** Now tell the generic SCSI layer
** about our bus.
*/
devq = cam_simq_alloc(/*maxopenings*/1);
/* XXX What about low-level detach on error? */
if (devq == NULL)
return (ENXIO);
vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
device_get_unit(dev),
/*untagged*/1, /*tagged*/0, devq);
if (vpo->sim == NULL) {
cam_simq_free(devq);
return (ENXIO);
}
if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
cam_sim_free(vpo->sim, /*free_devq*/TRUE);
return (ENXIO);
}
if (xpt_create_path(&vpo->path, /*periph*/NULL,
cam_sim_path(vpo->sim), CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(vpo->sim));
cam_sim_free(vpo->sim, /*free_devq*/TRUE);
return (ENXIO);
}
/* all went ok */
return (0);
}
/*
* 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;
lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
lockmgr(&sc->sim_lock, LK_RELEASE);
return(ENOMEM);
}
if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
xpt_free_ccb(ccb_0);
lockmgr(&sc->sim_lock, LK_RELEASE);
return(ENOMEM);
}
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);
lockmgr(&sc->sim_lock, LK_RELEASE);
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);
lockmgr(&sc->sim_lock, LK_RELEASE);
return(EIO);
}
xpt_setup_ccb(&ccb_0->ccb_h, ccb_0->ccb_h.path, 5/*priority (low)*/);
ccb_0->ccb_h.func_code = XPT_SCAN_BUS;
ccb_0->ccb_h.cbfcnp = mrsas_rescan_callback;
ccb_0->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb_0); /* scan is now in progress */
xpt_setup_ccb(&ccb_1->ccb_h, ccb_1->ccb_h.path, 5/*priority (low)*/);
ccb_1->ccb_h.func_code = XPT_SCAN_BUS;
ccb_1->ccb_h.cbfcnp = mrsas_rescan_callback;
ccb_1->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb_1); /* scan is now in progress */
lockmgr(&sc->sim_lock, LK_RELEASE);
return(0);
}
/*
* Register the driver as a CAM SIM
*/
static int
aac_cam_attach(device_t dev)
{
struct cam_devq *devq;
struct cam_sim *sim;
struct cam_path *path;
struct aac_cam *camsc;
struct aac_sim *inf;
fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
camsc = (struct aac_cam *)device_get_softc(dev);
inf = (struct aac_sim *)device_get_ivars(dev);
camsc->inf = inf;
devq = cam_simq_alloc(inf->TargetsPerBus);
if (devq == NULL)
return (EIO);
sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
if (sim == NULL) {
cam_simq_free(devq);
return (EIO);
}
/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
mtx_lock(&inf->aac_sc->aac_io_lock);
if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
cam_sim_free(sim, TRUE);
mtx_unlock(&inf->aac_sc->aac_io_lock);
return (EIO);
}
if (xpt_create_path(&path, NULL, cam_sim_path(sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(sim));
cam_sim_free(sim, TRUE);
mtx_unlock(&inf->aac_sc->aac_io_lock);
return (EIO);
}
mtx_unlock(&inf->aac_sc->aac_io_lock);
camsc->sim = sim;
camsc->path = path;
return (0);
}
void
mpt_cam_attach(mpt_softc_t *mpt)
{
struct cam_devq *devq;
struct cam_sim *sim;
int maxq;
mpt->bus = 0;
maxq = (mpt->mpt_global_credits < MPT_MAX_REQUESTS(mpt))?
mpt->mpt_global_credits : MPT_MAX_REQUESTS(mpt);
/*
* Create the device queue for our SIM(s).
*/
devq = cam_simq_alloc(maxq);
if (devq == NULL) {
return;
}
/*
* Construct our SIM entry.
*/
sim = cam_sim_alloc(mpt_action, mpt_poll, "mpt", mpt,
mpt->unit, 1, maxq, devq);
if (sim == NULL) {
cam_simq_free(devq);
return;
}
/*
* Register exactly the bus.
*/
if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
cam_sim_free(sim, TRUE);
return;
}
if (xpt_create_path(&mpt->path, NULL, cam_sim_path(sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(sim));
cam_sim_free(sim, TRUE);
return;
}
mpt->sim = sim;
}
/*
* 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);
lockmgr(sc->sim_lock, LK_EXCLUSIVE);
if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
lockmgr(sc->sim_lock, LK_RELEASE);
return(EIO);
}
xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
ccb->ccb_h.func_code = XPT_SCAN_BUS;
ccb->ccb_h.cbfcnp = twa_bus_scan_cb;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb);
lockmgr(sc->sim_lock, LK_RELEASE);
return(0);
}
/********************************************************************************
* Disconnect ourselves from CAM
*/
static int
amr_cam_detach(device_t dev)
{
struct amr_softc *sc;
int chn;
sc = device_get_softc(dev);
lockmgr(&sc->amr_list_lock, LK_EXCLUSIVE);
for (chn = 0; chn < sc->amr_maxchan; chn++) {
/*
* If a sim was allocated for this channel, free it
*/
if (sc->amr_cam_sim[chn] != NULL) {
xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn]));
cam_sim_free(sc->amr_cam_sim[chn]);
}
}
lockmgr(&sc->amr_list_lock, LK_RELEASE);
/* Now free the devq */
if (sc->amr_cam_devq != NULL)
cam_simq_release(sc->amr_cam_devq);
return (0);
}
int
tws_bus_scan(struct tws_softc *sc)
{
struct cam_path *path;
union ccb *ccb;
TWS_TRACE_DEBUG(sc, "entry", sc, 0);
KASSERT(sc->sim, ("sim not allocated"));
KKASSERT(lockstatus(&sc->sim_lock, curthread) != 0);
ccb = sc->scan_ccb;
if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
/* lockmgr(&sc->sim_lock, LK_RELEASE); */
return(EIO);
}
xpt_setup_ccb(&ccb->ccb_h, path, 5);
ccb->ccb_h.func_code = XPT_SCAN_BUS;
ccb->ccb_h.cbfcnp = tws_bus_scan_cb;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb);
return(0);
}
/********************************************************************************
* Detach from CAM
*/
void
mly_cam_detach(struct mly_softc *sc)
{
int chn, nchn, first;
debug_called(1);
nchn = sc->mly_controllerinfo->physical_channels_present +
sc->mly_controllerinfo->virtual_channels_present;
/*
* Iterate over channels, deregistering as we go.
*/
nchn = sc->mly_controllerinfo->physical_channels_present +
sc->mly_controllerinfo->virtual_channels_present;
for (chn = 0, first = 1; chn < nchn; chn++) {
/*
* If a sim was registered for this channel, free it.
*/
if (sc->mly_cam_sim[chn] != NULL) {
debug(1, "deregister bus %d", chn);
xpt_bus_deregister(cam_sim_path(sc->mly_cam_sim[chn]));
debug(1, "free sim for channel %d (%sfree queue)", chn, first ? "" : "don't ");
cam_sim_free(sc->mly_cam_sim[chn], first ? TRUE : FALSE);
first = 0;
}
}
}
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 void
ahci_cam_rescan(struct ahci_port *ap)
{
struct cam_path *path;
union ccb *ccb;
int status;
int i;
if (ap->ap_flags & AP_F_SCAN_RUNNING) {
ap->ap_flags |= AP_F_SCAN_REQUESTED;
return;
}
ap->ap_flags |= AP_F_SCAN_RUNNING;
for (i = 0; i < AHCI_MAX_PMPORTS; ++i) {
ap->ap_ata[i]->at_features |= ATA_PORT_F_RESCAN;
}
status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status != CAM_REQ_CMP)
return;
ccb = xpt_alloc_ccb();
xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */
ccb->ccb_h.func_code = XPT_ENG_EXEC;
ccb->ccb_h.cbfcnp = ahci_cam_rescan_callback;
ccb->ccb_h.sim_priv.entries[0].ptr = ap;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action_async(ccb);
}
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);
}
/********************************************************************************
* Disconnect ourselves from CAM
*/
static int
amr_cam_detach(device_t dev)
{
struct amr_softc *sc;
int chn;
sc = device_get_softc(dev);
mtx_lock(&sc->amr_list_lock);
for (chn = 0; chn < sc->amr_maxchan; chn++) {
/*
* If a sim was allocated for this channel, free it
*/
if (sc->amr_cam_sim[chn] != NULL) {
xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn]));
cam_sim_free(sc->amr_cam_sim[chn], FALSE);
}
}
mtx_unlock(&sc->amr_list_lock);
/* Now free the devq */
if (sc->amr_cam_devq != NULL)
cam_simq_free(sc->amr_cam_devq);
return (0);
}
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);
}
}
}
}
int
aha_attach(struct aha_softc *aha)
{
int tagged_dev_openings;
struct cam_devq *devq;
/*
* We don't do tagged queueing, since the aha cards don't
* support it.
*/
tagged_dev_openings = 0;
/*
* Create the device queue for our SIM.
*/
devq = cam_simq_alloc(aha->max_ccbs - 1);
if (devq == NULL)
return (ENOMEM);
/*
* Construct our SIM entry
*/
aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha,
device_get_unit(aha->dev), &aha->lock, 2, tagged_dev_openings,
devq);
if (aha->sim == NULL) {
cam_simq_free(devq);
return (ENOMEM);
}
mtx_lock(&aha->lock);
if (xpt_bus_register(aha->sim, aha->dev, 0) != CAM_SUCCESS) {
cam_sim_free(aha->sim, /*free_devq*/TRUE);
mtx_unlock(&aha->lock);
return (ENXIO);
}
if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(aha->sim));
cam_sim_free(aha->sim, /*free_devq*/TRUE);
mtx_unlock(&aha->lock);
return (ENXIO);
}
mtx_unlock(&aha->lock);
return (0);
}
static void *
nvme_sim_new_controller(struct nvme_controller *ctrlr)
{
struct nvme_sim_softc *sc;
struct cam_devq *devq;
int max_trans;
max_trans = ctrlr->max_hw_pend_io;
devq = cam_simq_alloc(max_trans);
if (devq == NULL)
return (NULL);
sc = malloc(sizeof(*sc), M_NVME, M_ZERO | M_WAITOK);
sc->s_ctrlr = ctrlr;
sc->s_sim = cam_sim_alloc(nvme_sim_action, nvme_sim_poll,
"nvme", sc, device_get_unit(ctrlr->dev),
&ctrlr->lock, max_trans, max_trans, devq);
if (sc->s_sim == NULL) {
printf("Failed to allocate a sim\n");
cam_simq_free(devq);
goto err1;
}
if (xpt_bus_register(sc->s_sim, ctrlr->dev, 0) != CAM_SUCCESS) {
printf("Failed to create a bus\n");
goto err2;
}
if (xpt_create_path(&sc->s_path, /*periph*/NULL, cam_sim_path(sc->s_sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
printf("Failed to create a path\n");
goto err3;
}
return (sc);
err3:
xpt_bus_deregister(cam_sim_path(sc->s_sim));
err2:
cam_sim_free(sc->s_sim, /*free_devq*/TRUE);
err1:
free(sc, M_NVME);
return (NULL);
}
/**
* mrsas_cam_detach: De-allocates and teardown CAM
* input: Adapter instance soft state
*
* De-registers and frees the paths and SIMs.
*/
void mrsas_cam_detach(struct mrsas_softc *sc)
{
if (sc->ev_tq != NULL)
taskqueue_free(sc->ev_tq);
mtx_lock(&sc->sim_lock);
if (sc->path_0)
xpt_free_path(sc->path_0);
if (sc->sim_0) {
xpt_bus_deregister(cam_sim_path(sc->sim_0));
cam_sim_free(sc->sim_0, FALSE);
}
if (sc->path_1)
xpt_free_path(sc->path_1);
if (sc->sim_1) {
xpt_bus_deregister(cam_sim_path(sc->sim_1));
cam_sim_free(sc->sim_1, TRUE);
}
mtx_unlock(&sc->sim_lock);
}
/*
* Function name: twa_cam_detach
* Description: Detaches the driver from CAM.
*
* Input: sc -- ptr to per ctlr structure
* Output: None
* Return value: None
*/
void
twa_cam_detach(struct twa_softc *sc)
{
if (sc->twa_path)
xpt_free_path(sc->twa_path);
if (sc->twa_sim) {
xpt_bus_deregister(cam_sim_path(sc->twa_sim));
cam_sim_free(sc->twa_sim, TRUE); /* passing TRUE will free the devq as well */
}
}
/**
* mrsas_cam_detach: De-allocates and teardown CAM
* input: Adapter instance soft state
*
* De-registers and frees the paths and SIMs.
*/
void mrsas_cam_detach(struct mrsas_softc *sc)
{
if (sc->ev_tq != NULL)
taskqueue_free(sc->ev_tq);
lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
if (sc->path_0)
xpt_free_path(sc->path_0);
if (sc->sim_0) {
xpt_bus_deregister(cam_sim_path(sc->sim_0));
cam_sim_free(sc->sim_0);
}
if (sc->path_1)
xpt_free_path(sc->path_1);
if (sc->sim_1) {
xpt_bus_deregister(cam_sim_path(sc->sim_1));
cam_sim_free(sc->sim_1);
}
lockmgr(&sc->sim_lock, LK_RELEASE);
}
void
mpt_cam_detach(mpt_softc_t *mpt)
{
if (mpt->sim != NULL) {
xpt_free_path(mpt->path);
xpt_bus_deregister(cam_sim_path(mpt->sim));
cam_sim_free(mpt->sim, TRUE);
mpt->sim = NULL;
}
}
int isci_controller_attach_to_cam(struct ISCI_CONTROLLER *controller)
{
struct isci_softc *isci = controller->isci;
device_t parent = device_get_parent(isci->device);
int unit = device_get_unit(isci->device);
struct cam_devq *isci_devq = cam_simq_alloc(controller->sim_queue_depth);
if(isci_devq == NULL) {
isci_log_message(0, "ISCI", "isci_devq is NULL \n");
return (-1);
}
controller->sim = cam_sim_alloc(isci_action, isci_poll, "isci",
controller, unit, &controller->lock, controller->sim_queue_depth,
controller->sim_queue_depth, isci_devq);
if(controller->sim == NULL) {
isci_log_message(0, "ISCI", "cam_sim_alloc... fails\n");
cam_simq_free(isci_devq);
return (-1);
}
if(xpt_bus_register(controller->sim, parent, controller->index)
!= CAM_SUCCESS) {
isci_log_message(0, "ISCI", "xpt_bus_register...fails \n");
cam_sim_free(controller->sim, TRUE);
mtx_unlock(&controller->lock);
return (-1);
}
if(xpt_create_path(&controller->path, NULL,
cam_sim_path(controller->sim), CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
isci_log_message(0, "ISCI", "xpt_create_path....fails\n");
xpt_bus_deregister(cam_sim_path(controller->sim));
cam_sim_free(controller->sim, TRUE);
mtx_unlock(&controller->lock);
return (-1);
}
return (0);
}
int
aha_detach(struct aha_softc *aha)
{
mtx_lock(&aha->lock);
xpt_async(AC_LOST_DEVICE, aha->path, NULL);
xpt_free_path(aha->path);
xpt_bus_deregister(cam_sim_path(aha->sim));
cam_sim_free(aha->sim, /*free_devq*/TRUE);
mtx_unlock(&aha->lock);
/* XXX: Drain all timers? */
return (0);
}
void
tws_cam_detach(struct tws_softc *sc)
{
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
mtx_lock(&sc->sim_lock);
if (sc->path)
xpt_free_path(sc->path);
if (sc->sim) {
xpt_bus_deregister(cam_sim_path(sc->sim));
cam_sim_free(sc->sim, TRUE);
}
mtx_unlock(&sc->sim_lock);
}
int
ic_getCamVals(isc_session_t *sp, iscsi_cam_t *cp)
{
debug_called(8);
if(sp && sp->cam_sim) {
cp->path_id = cam_sim_path(sp->cam_sim);
cp->target_id = 0;
cp->target_nluns = ISCSI_MAX_LUNS; // XXX: -1?
return 0;
}
return ENXIO;
}
void
tws_cam_detach(struct tws_softc *sc)
{
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
if (sc->path)
xpt_free_path(sc->path);
if (sc->sim) {
xpt_bus_deregister(cam_sim_path(sc->sim));
cam_sim_free(sc->sim);
}
lockmgr(&sc->sim_lock, LK_RELEASE);
}
static void
nvme_sim_controller_fail(void *ctrlr_arg)
{
struct nvme_sim_softc *sc = ctrlr_arg;
struct nvme_controller *ctrlr = sc->s_ctrlr;
mtx_lock(&ctrlr->lock);
xpt_async(AC_LOST_DEVICE, sc->s_path, NULL);
xpt_free_path(sc->s_path);
xpt_bus_deregister(cam_sim_path(sc->s_sim));
cam_sim_free(sc->s_sim, /*free_devq*/TRUE);
mtx_unlock(&ctrlr->lock);
free(sc, M_NVME);
}
/*
* The state of the port has changed.
*
* If atx is NULL the physical port has changed state.
* If atx is non-NULL a particular target behind a PM has changed state.
*
* If found is -1 the target state must be queued to a non-interrupt context.
* (only works with at == NULL).
*
* If found is 0 the target was removed.
* If found is 1 the target was inserted.
*/
void
ahci_cam_changed(struct ahci_port *ap, struct ata_port *atx, int found)
{
struct cam_path *tmppath;
int status;
int target;
target = atx ? atx->at_target : CAM_TARGET_WILDCARD;
if (ap->ap_sim == NULL)
return;
if (found == CAM_TARGET_WILDCARD) {
status = xpt_create_path(&tmppath, NULL,
cam_sim_path(ap->ap_sim),
target, CAM_LUN_WILDCARD);
if (status != CAM_REQ_CMP)
return;
ahci_cam_rescan(ap);
} else {
status = xpt_create_path(&tmppath, NULL,
cam_sim_path(ap->ap_sim),
target,
CAM_LUN_WILDCARD);
if (status != CAM_REQ_CMP)
return;
#if 0
/*
* This confuses CAM
*/
if (found)
xpt_async(AC_FOUND_DEVICE, tmppath, NULL);
else
xpt_async(AC_LOST_DEVICE, tmppath, NULL);
#endif
}
xpt_free_path(tmppath);
}
void
isci_remote_device_release_lun_queue(struct ISCI_REMOTE_DEVICE *remote_device,
lun_id_t lun)
{
if (remote_device->frozen_lun_mask & (1 << lun)) {
struct cam_path *path;
remote_device->frozen_lun_mask &= ~(1 << lun);
xpt_create_path(&path, NULL,
cam_sim_path(remote_device->domain->controller->sim),
remote_device->index, lun);
xpt_release_devq(path, 1, TRUE);
xpt_free_path(path);
}
}
/********************************************************************************
* Find a peripheral attahed at (bus),(target)
*/
static struct cam_periph *
mly_find_periph(struct mly_softc *sc, int bus, int target)
{
struct cam_periph *periph;
struct cam_path *path;
int status;
status = xpt_create_path(&path, NULL, cam_sim_path(sc->mly_cam_sim[bus]), target, 0);
if (status == CAM_REQ_CMP) {
periph = cam_periph_find(path, NULL);
xpt_free_path(path);
} else {
periph = NULL;
}
return(periph);
}
/*
* Function name: tw_osli_cam_detach
* Description: Detaches the driver from CAM.
*
* Input: sc -- ptr to OSL internal ctlr context
* Output: None
* Return value: None
*/
TW_VOID
tw_osli_cam_detach(struct twa_softc *sc)
{
tw_osli_dbg_dprintf(3, sc, "entered");
mtx_lock(sc->sim_lock);
if (sc->path)
xpt_free_path(sc->path);
if (sc->sim) {
xpt_bus_deregister(cam_sim_path(sc->sim));
/* Passing TRUE to cam_sim_free will free the devq as well. */
cam_sim_free(sc->sim, TRUE);
}
/* It's ok have 1 hold count while destroying the mutex */
mtx_destroy(sc->sim_lock);
}
