/*
* Detach net80211 state on device detach. Tear down
* all vap's and reclaim all common state prior to the
* device state going away. Note we may call back into
* driver; it must be prepared for this.
*/
void
ieee80211_ifdetach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211vap *vap;
if_detach(ifp);
while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL)
ieee80211_vap_destroy(vap);
ieee80211_waitfor_parent(ic);
ieee80211_sysctl_detach(ic);
ieee80211_dfs_detach(ic);
ieee80211_regdomain_detach(ic);
ieee80211_scan_detach(ic);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_superg_detach(ic);
#endif
ieee80211_ht_detach(ic);
/* NB: must be called before ieee80211_node_detach */
ieee80211_proto_detach(ic);
ieee80211_crypto_detach(ic);
ieee80211_power_detach(ic);
ieee80211_node_detach(ic);
ifmedia_removeall(&ic->ic_media);
taskqueue_free(ic->ic_tq);
}
static void
destroy_geom_disk(struct nvd_disk *ndisk)
{
struct bio *bp;
struct disk *disk;
uint32_t unit;
int cnt = 0;
disk = ndisk->disk;
unit = disk->d_unit;
taskqueue_free(ndisk->tq);
disk_destroy(ndisk->disk);
mtx_lock(&ndisk->bioqlock);
for (;;) {
bp = bioq_takefirst(&ndisk->bioq);
if (bp == NULL)
break;
bp->bio_error = EIO;
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
cnt++;
biodone(bp);
}
printf(NVD_STR"%u: lost device - %d outstanding\n", unit, cnt);
printf(NVD_STR"%u: removing device entry\n", unit);
mtx_unlock(&ndisk->bioqlock);
mtx_destroy(&ndisk->bioqlock);
}
void
dmar_fini_qi(struct dmar_unit *unit)
{
struct dmar_qi_genseq gseq;
if (unit->qi_enabled)
return;
taskqueue_drain(unit->qi_taskqueue, &unit->qi_task);
taskqueue_free(unit->qi_taskqueue);
unit->qi_taskqueue = NULL;
DMAR_LOCK(unit);
/* quisce */
dmar_qi_ensure(unit, 1);
dmar_qi_emit_wait_seq(unit, &gseq, true);
dmar_qi_advance_tail(unit);
dmar_qi_wait_for_seq(unit, &gseq, false);
/* only after the quisce, disable queue */
dmar_disable_qi_intr(unit);
dmar_disable_qi(unit);
KASSERT(unit->inv_seq_waiters == 0,
("dmar%d: waiters on disabled queue", unit->unit));
DMAR_UNLOCK(unit);
kmem_free(kernel_arena, unit->inv_queue, unit->inv_queue_size);
unit->inv_queue = 0;
unit->inv_queue_size = 0;
unit->qi_enabled = 0;
}
int main(int argc, char **argv)
{
struct taskqueue *t;
struct task task;
int retval;
t = taskqueue_create("test", M_WAITOK, taskqueue_thread_enqueue, &t);
if (!t) {
kprintf("unable to create taskqueue\n");
return 1;
}
retval = taskqueue_start_threads(&t,
4, /*num threads*/
PWAIT, /*priority*/
"%s", /* thread name */
"test");
if (retval != 0) {
kprintf("failed to create taskqueue threads\n");
return 1;
}
TASK_INIT(&task, /*priority*/0, task_worker, NULL);
retval = taskqueue_enqueue(t, &task);
if (retval != 0) {
kprintf("failed to enqueue task\n");
return 1;
}
taskqueue_drain(t, &task);
taskqueue_free(t);
return 0;
}
static int
vtblk_detach(device_t dev)
{
struct vtblk_softc *sc;
sc = device_get_softc(dev);
VTBLK_LOCK(sc);
sc->vtblk_flags |= VTBLK_FLAG_DETACH;
if (device_is_attached(dev))
vtblk_stop(sc);
VTBLK_UNLOCK(sc);
if (sc->vtblk_tq != NULL) {
taskqueue_drain(sc->vtblk_tq, &sc->vtblk_intr_task);
taskqueue_free(sc->vtblk_tq);
sc->vtblk_tq = NULL;
}
vtblk_drain(sc);
if (sc->vtblk_disk != NULL) {
disk_destroy(sc->vtblk_disk);
sc->vtblk_disk = NULL;
}
if (sc->vtblk_sglist != NULL) {
sglist_free(sc->vtblk_sglist);
sc->vtblk_sglist = NULL;
}
VTBLK_LOCK_DESTROY(sc);
return (0);
}
static int
cfi_disk_detach(device_t dev)
{
struct cfi_disk_softc *sc = device_get_softc(dev);
if (sc->flags & CFI_DISK_OPEN)
return EBUSY;
taskqueue_free(sc->tq);
/* XXX drain bioq */
disk_destroy(sc->disk);
mtx_destroy(&sc->qlock);
return 0;
}
int
pefs_uninit(struct vfsconf *vfsp)
{
taskqueue_enqueue(pefs_taskq, &pefs_task_freenode);
taskqueue_drain(pefs_taskq, &pefs_task_freenode);
taskqueue_free(pefs_taskq);
pefs_dircache_uninit();
pefs_crypto_uninit();
mtx_destroy(&pefs_node_listmtx);
free(pefs_nodehash_tbl, M_PEFSHASH);
uma_zdestroy(pefs_node_zone);
return (0);
}
void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_cq *cq = *pcq;
taskqueue_drain(cq->tq, &cq->cq_task);
taskqueue_free(cq->tq);
mlx4_en_unmap_buffer(&cq->wqres.buf);
mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
if (priv->mdev->dev->caps.comp_pool && cq->vector)
mlx4_release_eq(priv->mdev->dev, cq->vector);
kfree(cq);
*pcq = NULL;
}
static void
athp_attach_preinit(void *arg)
{
struct ath10k *ar = arg;
struct ath10k_pci *ar_pci = ar->sc_psc;
int ret;
config_intrhook_disestablish(&ar->sc_preinit_hook);
/* Setup ioctl handler */
athp_ioctl_setup(ar);
ret = ath10k_core_register(ar);
if (ret == 0)
return;
/* Shutdown ioctl handler */
athp_ioctl_teardown(ar);
/* XXX TODO: refactor this stuff out */
athp_pci_free_bufs(ar_pci);
/* Ensure we disable interrupts from the device */
ath10k_pci_deinit_irq(ar_pci);
ath10k_pci_free_irq(ar_pci);
bus_release_resource(ar->sc_dev, SYS_RES_MEMORY, BS_BAR, ar_pci->sc_sr);
/* XXX disable busmaster? */
mtx_destroy(&ar_pci->ps_mtx);
mtx_destroy(&ar_pci->ce_mtx);
mtx_destroy(&ar->sc_conf_mtx);
mtx_destroy(&ar->sc_data_mtx);
mtx_destroy(&ar->sc_buf_mtx);
mtx_destroy(&ar->sc_dma_mtx);
mtx_destroy(&ar->sc_mtx);
if (ar_pci->pipe_taskq) {
taskqueue_drain_all(ar_pci->pipe_taskq);
taskqueue_free(ar_pci->pipe_taskq);
}
ath10k_core_destroy(ar);
}
void
altera_sdcard_detach(struct altera_sdcard_softc *sc)
{
KASSERT(sc->as_taskqueue != NULL, ("%s: taskqueue not present",
__func__));
/*
* Winding down the driver on detach is a bit complex. Update the
* flags to indicate that a detach has been requested, and then wait
* for in-progress I/O to wind down before continuing.
*/
ALTERA_SDCARD_LOCK(sc);
sc->as_flags |= ALTERA_SDCARD_FLAG_DETACHREQ;
while (sc->as_state != ALTERA_SDCARD_STATE_DETACHED)
ALTERA_SDCARD_CONDVAR_WAIT(sc);
ALTERA_SDCARD_UNLOCK(sc);
/*
* Now wait for the possibly still executing taskqueue to drain. In
* principle no more events will be scheduled as we've transitioned to
* a detached state, but there might still be a request in execution.
*/
while (taskqueue_cancel_timeout(sc->as_taskqueue, &sc->as_task, NULL))
taskqueue_drain_timeout(sc->as_taskqueue, &sc->as_task);
/*
* Simulate a disk removal if one is present to deal with any pending
* or queued I/O.
*/
if (sc->as_disk != NULL)
altera_sdcard_disk_remove(sc);
KASSERT(bioq_first(&sc->as_bioq) == NULL,
("%s: non-empty bioq", __func__));
/*
* Free any remaining allocated resources.
*/
taskqueue_free(sc->as_taskqueue);
sc->as_taskqueue = NULL;
ALTERA_SDCARD_CONDVAR_DESTROY(sc);
ALTERA_SDCARD_LOCK_DESTROY(sc);
}
/**
* 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);
}
/*
* Detach net80211 state on device detach. Tear down
* all vap's and reclaim all common state prior to the
* device state going away. Note we may call back into
* driver; it must be prepared for this.
*/
void
ieee80211_ifdetach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211vap *vap;
/*
* This detaches the main interface, but not the vaps.
* Each VAP may be in a separate VIMAGE.
*/
CURVNET_SET(ifp->if_vnet);
if_detach(ifp);
CURVNET_RESTORE();
/*
* The VAP is responsible for setting and clearing
* the VIMAGE context.
*/
while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL)
ieee80211_vap_destroy(vap);
ieee80211_waitfor_parent(ic);
ieee80211_sysctl_detach(ic);
ieee80211_dfs_detach(ic);
ieee80211_regdomain_detach(ic);
ieee80211_scan_detach(ic);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_superg_detach(ic);
#endif
ieee80211_ht_detach(ic);
/* NB: must be called before ieee80211_node_detach */
ieee80211_proto_detach(ic);
ieee80211_crypto_detach(ic);
ieee80211_power_detach(ic);
ieee80211_node_detach(ic);
/* XXX VNET needed? */
ifmedia_removeall(&ic->ic_media);
taskqueue_free(ic->ic_tq);
IEEE80211_TX_LOCK_DESTROY(ic);
IEEE80211_LOCK_DESTROY(ic);
}
/**
* 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);
}
static void
destroy_geom_disk(struct nvd_disk *ndisk)
{
struct bio *bp;
taskqueue_free(ndisk->tq);
disk_destroy(ndisk->disk);
mtx_lock(&ndisk->bioqlock);
for (;;) {
bp = bioq_takefirst(&ndisk->bioq);
if (bp == NULL)
break;
bp->bio_error = EIO;
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
biodone(bp);
}
mtx_unlock(&ndisk->bioqlock);
mtx_destroy(&ndisk->bioqlock);
}
void
destroy_geom_disk(struct nand_chip *chip)
{
struct bio *bp;
taskqueue_free(chip->tq);
disk_destroy(chip->ndisk);
disk_destroy(chip->rdisk);
mtx_lock(&chip->qlock);
for (;;) {
bp = bioq_takefirst(&chip->bioq);
if (bp == NULL)
break;
bp->bio_error = EIO;
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
biodone(bp);
}
mtx_unlock(&chip->qlock);
mtx_destroy(&chip->qlock);
}
static int
athp_pci_attach(device_t dev)
{
struct ath10k_pci *ar_pci = device_get_softc(dev);
struct ath10k *ar = &ar_pci->sc_sc;
int rid, i;
int err = 0;
int ret;
ar->sc_dev = dev;
ar->sc_invalid = 1;
/* XXX TODO: initialize sc_debug from TUNABLE */
#if 0
ar->sc_debug = ATH10K_DBG_BOOT | ATH10K_DBG_PCI | ATH10K_DBG_HTC |
ATH10K_DBG_PCI_DUMP | ATH10K_DBG_WMI | ATH10K_DBG_BMI | ATH10K_DBG_MAC |
ATH10K_DBG_WMI_PRINT | ATH10K_DBG_MGMT | ATH10K_DBG_DATA | ATH10K_DBG_HTT;
#endif
ar->sc_psc = ar_pci;
/* Load-time tunable/sysctl tree */
athp_attach_sysctl(ar);
/* Enable WMI/HTT RX for now */
ar->sc_rx_wmi = 1;
ar->sc_rx_htt = 1;
/* Fetch pcie capability offset */
ret = pci_find_cap(dev, PCIY_EXPRESS, &ar_pci->sc_cap_off);
if (ret != 0) {
device_printf(dev,
"%s: failed to find pci-express capability offset\n",
__func__);
return (ret);
}
/*
* Initialise ath10k core bits.
*/
if (ath10k_core_init(ar) < 0)
goto bad0;
/*
* Initialise ath10k freebsd bits.
*/
sprintf(ar->sc_mtx_buf, "%s:def", device_get_nameunit(dev));
mtx_init(&ar->sc_mtx, ar->sc_mtx_buf, MTX_NETWORK_LOCK,
MTX_DEF);
sprintf(ar->sc_buf_mtx_buf, "%s:buf", device_get_nameunit(dev));
mtx_init(&ar->sc_buf_mtx, ar->sc_buf_mtx_buf, "athp buf", MTX_DEF);
sprintf(ar->sc_dma_mtx_buf, "%s:dma", device_get_nameunit(dev));
mtx_init(&ar->sc_dma_mtx, ar->sc_dma_mtx_buf, "athp dma", MTX_DEF);
sprintf(ar->sc_conf_mtx_buf, "%s:conf", device_get_nameunit(dev));
mtx_init(&ar->sc_conf_mtx, ar->sc_conf_mtx_buf, "athp conf",
MTX_DEF | MTX_RECURSE);
sprintf(ar_pci->ps_mtx_buf, "%s:ps", device_get_nameunit(dev));
mtx_init(&ar_pci->ps_mtx, ar_pci->ps_mtx_buf, "athp ps", MTX_DEF);
sprintf(ar_pci->ce_mtx_buf, "%s:ce", device_get_nameunit(dev));
mtx_init(&ar_pci->ce_mtx, ar_pci->ce_mtx_buf, "athp ce", MTX_DEF);
sprintf(ar->sc_data_mtx_buf, "%s:data", device_get_nameunit(dev));
mtx_init(&ar->sc_data_mtx, ar->sc_data_mtx_buf, "athp data",
MTX_DEF);
/*
* Initialise ath10k BMI/PCIDIAG bits.
*/
ret = athp_descdma_alloc(ar, &ar_pci->sc_bmi_txbuf, "bmi_msg_req",
4, 1024);
ret |= athp_descdma_alloc(ar, &ar_pci->sc_bmi_rxbuf, "bmi_msg_resp",
4, 1024);
if (ret != 0) {
device_printf(dev, "%s: failed to allocate BMI TX/RX buffer\n",
__func__);
goto bad0;
}
/*
* Initialise HTT descriptors/memory.
*/
ret = ath10k_htt_rx_alloc_desc(ar, &ar->htt);
if (ret != 0) {
device_printf(dev, "%s: failed to alloc HTT RX descriptors\n",
__func__);
goto bad;
}
/* XXX here instead of in core_init because we need the lock init'ed */
callout_init_mtx(&ar->scan.timeout, &ar->sc_data_mtx, 0);
ar_pci->pipe_taskq = taskqueue_create("athp pipe taskq", M_NOWAIT,
NULL, ar_pci);
(void) taskqueue_start_threads(&ar_pci->pipe_taskq, 1, PI_NET, "%s pipe taskq",
device_get_nameunit(dev));
if (ar_pci->pipe_taskq == NULL) {
device_printf(dev, "%s: couldn't create pipe taskq\n",
__func__);
err = ENXIO;
goto bad;
}
/*
* Look at the device/vendor ID and choose which register offset
* mapping to use. This is used by a lot of the register access
* pieces to get the correct device-specific windows.
*/
ar_pci->sc_vendorid = pci_get_vendor(dev);
ar_pci->sc_deviceid = pci_get_device(dev);
if (athp_pci_hw_lookup(ar_pci) != 0) {
device_printf(dev, "%s: hw lookup failed\n", __func__);
err = ENXIO;
goto bad;
}
/*
* Enable bus mastering.
*/
pci_enable_busmaster(dev);
/*
* Setup memory-mapping of PCI registers.
*/
rid = BS_BAR;
ar_pci->sc_sr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (ar_pci->sc_sr == NULL) {
device_printf(dev, "cannot map register space\n");
err = ENXIO;
goto bad;
}
/* Driver copy; hopefully we can delete this */
ar->sc_st = rman_get_bustag(ar_pci->sc_sr);
ar->sc_sh = rman_get_bushandle(ar_pci->sc_sr);
/* Local copy for bus operations */
ar_pci->sc_st = rman_get_bustag(ar_pci->sc_sr);
ar_pci->sc_sh = rman_get_bushandle(ar_pci->sc_sr);
/*
* Mark device invalid so any interrupts (shared or otherwise)
* that arrive before the HAL is setup are discarded.
*/
ar->sc_invalid = 1;
printf("%s: msicount=%d, msixcount=%d\n",
__func__,
pci_msi_count(dev),
pci_msix_count(dev));
/*
* Arrange interrupt line.
*
* XXX TODO: this is effictively ath10k_pci_init_irq().
* Refactor it out later.
*
* First - attempt MSI. If we get it, then use it.
*/
i = MSI_NUM_REQUEST;
if (pci_alloc_msi(dev, &i) == 0) {
device_printf(dev, "%s: %d MSI interrupts\n", __func__, i);
ar_pci->num_msi_intrs = MSI_NUM_REQUEST;
} else {
i = 1;
if (pci_alloc_msi(dev, &i) == 0) {
device_printf(dev, "%s: 1 MSI interrupt\n", __func__);
ar_pci->num_msi_intrs = 1;
} else {
device_printf(dev, "%s: legacy interrupts\n", __func__);
ar_pci->num_msi_intrs = 0;
}
}
err = ath10k_pci_request_irq(ar_pci);
if (err != 0)
goto bad1;
/*
* Attach register ops - needed for the caller to do register IO.
*/
ar->sc_regio.reg_read = athp_pci_regio_read_reg;
ar->sc_regio.reg_write = athp_pci_regio_write_reg;
ar->sc_regio.reg_s_read = athp_pci_regio_s_read_reg;
ar->sc_regio.reg_s_write = athp_pci_regio_s_write_reg;
ar->sc_regio.reg_flush = athp_pci_regio_flush_reg;
ar->sc_regio.reg_arg = ar_pci;
/*
* TODO: abstract this out to be a bus/hif specific
* attach path.
*
* I'm not sure what USB/SDIO will look like here, but
* I'm pretty sure it won't involve PCI/CE setup.
* It'll still have WME/HIF/BMI, but it'll be done over
* USB endpoints.
*/
if (athp_pci_setup_bufs(ar_pci) != 0) {
err = ENXIO;
goto bad4;
}
/* HIF ops attach */
ar->hif.ops = &ath10k_pci_hif_ops;
ar->hif.bus = ATH10K_BUS_PCI;
/* Alloc pipes */
ret = ath10k_pci_alloc_pipes(ar);
if (ret) {
device_printf(ar->sc_dev, "%s: pci_alloc_pipes failed: %d\n",
__func__,
ret);
/* XXX cleanup */
err = ENXIO;
goto bad4;
}
/* deinit ce */
ath10k_pci_ce_deinit(ar);
/* disable irq */
ret = ath10k_pci_irq_disable(ar_pci);
if (ret) {
device_printf(ar->sc_dev, "%s: irq_disable failed: %d\n",
__func__,
ret);
err = ENXIO;
goto bad4;
}
/* init IRQ */
ret = ath10k_pci_init_irq(ar_pci);
if (ret) {
device_printf(ar->sc_dev, "%s: init_irq failed: %d\n",
__func__,
ret);
err = ENXIO;
goto bad4;
}
/* Ok, gate open the interrupt handler */
ar->sc_invalid = 0;
/* pci_chip_reset */
ret = ath10k_pci_chip_reset(ar_pci);
if (ret) {
device_printf(ar->sc_dev, "%s: chip_reset failed: %d\n",
__func__,
ret);
err = ENXIO;
goto bad4;
}
/* read SoC/chip version */
ar->sc_chipid = athp_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS(ar->sc_regofs));
/* Verify chip version is something we can use */
device_printf(ar->sc_dev, "%s: chipid: 0x%08x\n", __func__, ar->sc_chipid);
if (! ath10k_pci_chip_is_supported(ar_pci->sc_deviceid, ar->sc_chipid)) {
device_printf(ar->sc_dev,
"%s: unsupported chip; chipid: 0x%08x\n", __func__,
ar->sc_chipid);
err = ENXIO;
goto bad4;
}
/* Call main attach method with given info */
ar->sc_preinit_hook.ich_func = athp_attach_preinit;
ar->sc_preinit_hook.ich_arg = ar;
if (config_intrhook_establish(&ar->sc_preinit_hook) != 0) {
device_printf(ar->sc_dev,
"%s: couldn't establish preinit hook\n", __func__);
goto bad4;
}
return (0);
/* Fallthrough for setup failure */
bad4:
athp_pci_free_bufs(ar_pci);
/* Ensure we disable interrupts from the device */
ath10k_pci_deinit_irq(ar_pci);
ath10k_pci_free_irq(ar_pci);
bad1:
bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, ar_pci->sc_sr);
bad:
ath10k_htt_rx_free_desc(ar, &ar->htt);
athp_descdma_free(ar, &ar_pci->sc_bmi_txbuf);
athp_descdma_free(ar, &ar_pci->sc_bmi_rxbuf);
/* XXX disable busmaster? */
mtx_destroy(&ar_pci->ps_mtx);
mtx_destroy(&ar_pci->ce_mtx);
mtx_destroy(&ar->sc_conf_mtx);
mtx_destroy(&ar->sc_data_mtx);
mtx_destroy(&ar->sc_buf_mtx);
mtx_destroy(&ar->sc_dma_mtx);
mtx_destroy(&ar->sc_mtx);
if (ar_pci->pipe_taskq) {
taskqueue_drain_all(ar_pci->pipe_taskq);
taskqueue_free(ar_pci->pipe_taskq);
}
/* Shutdown ioctl handler */
athp_ioctl_teardown(ar);
ath10k_core_destroy(ar);
bad0:
return (err);
}
static int
athp_pci_detach(device_t dev)
{
struct ath10k_pci *ar_pci = device_get_softc(dev);
struct ath10k *ar = &ar_pci->sc_sc;
ath10k_warn(ar, "%s: called\n", __func__);
/* Signal things we're going down.. */
ATHP_LOCK(ar);
ar->sc_invalid = 1;
ATHP_UNLOCK(ar);
/* Shutdown ioctl handler */
athp_ioctl_teardown(ar);
/* XXX TODO: synchronise with running things first */
/*
* Do a config read to clear pre-existing pci error status.
*/
(void) pci_read_config(dev, PCIR_COMMAND, 4);
/* stop/free the core - this detaches net80211 state */
ath10k_core_unregister(ar);
/* kill tasklet(s) */
/* deinit irq - stop getting more interrupts */
ath10k_pci_deinit_irq(ar_pci);
/* ce deinit */
ath10k_pci_ce_deinit(ar);
/* free pipes */
ath10k_pci_free_pipes(ar);
/* free HTT RX buffers */
ath10k_htt_rx_free_desc(ar, &ar->htt);
/* pci release */
/* sleep sync */
/* buffers */
athp_pci_free_bufs(ar_pci);
/* core itself - destroys taskqueues, etc */
ath10k_core_destroy(ar);
/* Free bus resources */
bus_generic_detach(dev);
/* Tear down interrupt */
ath10k_pci_free_irq(ar_pci);
bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, ar_pci->sc_sr);
/* XXX disable busmastering? */
/* Free BMI buffers */
athp_descdma_free(ar, &ar_pci->sc_bmi_txbuf);
athp_descdma_free(ar, &ar_pci->sc_bmi_rxbuf);
athp_trace_close(ar);
/* Free locks */
mtx_destroy(&ar_pci->ps_mtx);
mtx_destroy(&ar_pci->ce_mtx);
mtx_destroy(&ar->sc_conf_mtx);
mtx_destroy(&ar->sc_data_mtx);
mtx_destroy(&ar->sc_buf_mtx);
mtx_destroy(&ar->sc_dma_mtx);
mtx_destroy(&ar->sc_mtx);
/* Tear down the pipe taskqueue */
if (ar_pci->pipe_taskq) {
taskqueue_drain_all(ar_pci->pipe_taskq);
taskqueue_free(ar_pci->pipe_taskq);
}
return (0);
}
int
smc_detach(device_t dev)
{
int type;
struct smc_softc *sc;
sc = device_get_softc(dev);
SMC_LOCK(sc);
smc_stop(sc);
SMC_UNLOCK(sc);
if (sc->smc_ifp != NULL) {
ether_ifdetach(sc->smc_ifp);
}
callout_drain(&sc->smc_watchdog);
callout_drain(&sc->smc_mii_tick_ch);
#ifdef DEVICE_POLLING
if (sc->smc_ifp->if_capenable & IFCAP_POLLING)
ether_poll_deregister(sc->smc_ifp);
#endif
if (sc->smc_ih != NULL)
bus_teardown_intr(sc->smc_dev, sc->smc_irq, sc->smc_ih);
if (sc->smc_tq != NULL) {
taskqueue_drain(sc->smc_tq, &sc->smc_intr);
taskqueue_drain(sc->smc_tq, &sc->smc_rx);
taskqueue_drain(sc->smc_tq, &sc->smc_tx);
taskqueue_free(sc->smc_tq);
sc->smc_tq = NULL;
}
if (sc->smc_ifp != NULL) {
if_free(sc->smc_ifp);
}
if (sc->smc_miibus != NULL) {
device_delete_child(sc->smc_dev, sc->smc_miibus);
bus_generic_detach(sc->smc_dev);
}
if (sc->smc_reg != NULL) {
type = SYS_RES_IOPORT;
if (sc->smc_usemem)
type = SYS_RES_MEMORY;
bus_release_resource(sc->smc_dev, type, sc->smc_reg_rid,
sc->smc_reg);
}
if (sc->smc_irq != NULL)
bus_release_resource(sc->smc_dev, SYS_RES_IRQ, sc->smc_irq_rid,
sc->smc_irq);
if (mtx_initialized(&sc->smc_mtx))
mtx_destroy(&sc->smc_mtx);
return (0);
}
