int
ddi_intr_hilevel(dev_info_t *dip, uint_t inumber)
{
ddi_intr_handle_t hdl;
ddi_intr_handle_t *hdl_p;
size_t hdl_sz = 0;
int actual, ret;
uint_t high_pri, pri;
DDI_INTR_APIDBG((CE_CONT, "ddi_intr_hilevel: name=%s%d dip=0x%p "
"inum=0x%x\n", ddi_driver_name(dip), ddi_get_instance(dip),
(void *)dip, inumber));
/*
* The device driver may have already registed with the
* framework. If so, first try to get the existing interrupt handle
* for that given inumber and use that handle.
*/
if ((hdl = i_ddi_get_intr_handle(dip, inumber)) == NULL) {
hdl_sz = sizeof (ddi_intr_handle_t) * (inumber + 1);
hdl_p = kmem_zalloc(hdl_sz, KM_SLEEP);
if ((ret = ddi_intr_alloc(dip, hdl_p, DDI_INTR_TYPE_FIXED,
inumber, 1, &actual,
DDI_INTR_ALLOC_NORMAL)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_intr_hilevel: "
"ddi_intr_alloc failed, ret 0x%x\n", ret));
kmem_free(hdl_p, hdl_sz);
return (0);
}
hdl = hdl_p[inumber];
}
if ((ret = ddi_intr_get_pri(hdl, &pri)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_intr_hilevel: "
"ddi_intr_get_pri failed, ret 0x%x\n", ret));
(void) ddi_intr_free(hdl);
if (hdl_sz)
kmem_free(hdl_p, hdl_sz);
return (0);
}
high_pri = ddi_intr_get_hilevel_pri();
DDI_INTR_APIDBG((CE_CONT, "ddi_intr_hilevel: pri = %x, "
"high_pri = %x\n", pri, high_pri));
/* Free the handle allocated here only if no existing handle exists */
if (hdl_sz) {
(void) ddi_intr_free(hdl);
kmem_free(hdl_p, hdl_sz);
}
return (pri >= high_pri);
}
static int
virtio_fixed_intr_setup(virtionet_state_t *sp, ddi_intr_handler_t inthandler)
{
int rc;
int nintr;
uint_t pri;
rc = ddi_intr_get_nintrs(sp->dip, DDI_INTR_TYPE_FIXED, &nintr);
if (rc != DDI_SUCCESS) {
return (DDI_FAILURE);
}
ASSERT(nintr == 1);
rc = ddi_intr_alloc(sp->dip, &sp->ihandle, DDI_INTR_TYPE_FIXED, 0, 1,
&nintr, DDI_INTR_ALLOC_NORMAL);
if (rc != DDI_SUCCESS) {
return (DDI_FAILURE);
}
ASSERT(nintr == 1);
rc = ddi_intr_get_pri(sp->ihandle, &pri);
if (rc != DDI_SUCCESS) {
(void) ddi_intr_free(sp->ihandle);
return (DDI_FAILURE);
}
/* Test for high level mutex */
if (pri >= ddi_intr_get_hilevel_pri()) {
cmn_err(CE_WARN, "Hi level interrupt not supported");
(void) ddi_intr_free(sp->ihandle);
return (DDI_FAILURE);
}
rc = ddi_intr_add_handler(sp->ihandle, inthandler, sp, NULL);
if (rc != DDI_SUCCESS) {
(void) ddi_intr_free(sp->ihandle);
return (DDI_FAILURE);
}
rc = ddi_intr_enable(sp->ihandle);
if (rc != DDI_SUCCESS) {
(void) ddi_intr_remove_handler(sp->ihandle);
(void) ddi_intr_free(sp->ihandle);
return (DDI_FAILURE);
}
return (DDI_SUCCESS);
}
/* ARGSUSED */
void
ddi_remove_intr(dev_info_t *dip, uint_t inum, ddi_iblock_cookie_t iblock_cookie)
{
ddi_intr_handle_t hdl;
int ret;
DDI_INTR_APIDBG((CE_CONT, "ddi_remove_intr: name=%s%d dip=0x%p "
"inum=0x%x\n", ddi_driver_name(dip), ddi_get_instance(dip),
(void *)dip, inum));
if ((hdl = i_ddi_get_intr_handle(dip, inum)) == NULL) {
DDI_INTR_APIDBG((CE_CONT, "ddi_remove_intr: no handle "
"found\n"));
return;
}
if ((ret = ddi_intr_disable(hdl)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_remove_intr: "
"ddi_intr_disable failed, ret 0x%x\n", ret));
return;
}
if ((ret = ddi_intr_remove_handler(hdl)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_remove_intr: "
"ddi_intr_remove_handler failed, ret 0x%x\n", ret));
return;
}
if ((ret = ddi_intr_free(hdl)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_remove_intr: "
"ddi_intr_free failed, ret 0x%x\n", ret));
return;
}
}
static int
virtio_intr_teardown(virtionet_state_t *sp)
{
int rc;
rc = ddi_intr_disable(sp->ihandle);
rc = ddi_intr_remove_handler(sp->ihandle);
rc = ddi_intr_free(sp->ihandle);
return (DDI_SUCCESS);
}
/**
* Removes IRQ for VMMDev.
*
* @param pDip Pointer to the device info structure.
*/
static void VBoxGuestSolarisRemoveIRQ(dev_info_t *pDip)
{
LogFlow((DEVICE_NAME "::RemoveIRQ:\n"));
for (int i = 0; i < g_cIntrAllocated; i++)
{
int rc = ddi_intr_disable(g_pIntr[i]);
if (rc == DDI_SUCCESS)
{
rc = ddi_intr_remove_handler(g_pIntr[i]);
if (rc == DDI_SUCCESS)
ddi_intr_free(g_pIntr[i]);
}
}
RTMemFree(g_pIntr);
mutex_destroy(&g_IrqMtx);
}
int
efe_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
efe_t *efep = ddi_get_driver_private(dip);
switch (cmd) {
case DDI_DETACH:
break;
case DDI_SUSPEND:
return (efe_suspend(efep));
default:
return (DDI_FAILURE);
}
if (mac_unregister(efep->efe_mh) != 0) {
efe_error(dip, "unable to unregister from mac!");
return (DDI_FAILURE);
}
mii_free(efep->efe_miih);
(void) ddi_intr_disable(efep->efe_intrh);
(void) ddi_intr_remove_handler(efep->efe_intrh);
(void) ddi_intr_free(efep->efe_intrh);
mutex_destroy(&efep->efe_txlock);
mutex_destroy(&efep->efe_intrlock);
if (efep->efe_tx_ring != NULL) {
efe_ring_free(&efep->efe_tx_ring);
}
if (efep->efe_rx_ring != NULL) {
efe_ring_free(&efep->efe_rx_ring);
}
ddi_regs_map_free(&efep->efe_regs_acch);
kmem_free(efep, sizeof (efe_t));
return (DDI_SUCCESS);
}
/**
* Removes IRQ for VMMDev.
*
* @param pDip Pointer to the device info structure.
*/
static void vgdrvSolarisRemoveIRQ(dev_info_t *pDip)
{
LogFlow(("vgdrvSolarisRemoveIRQ:\n"));
int rc = ddi_intr_disable(g_pahIntrs[0]);
if (rc == DDI_SUCCESS)
{
rc = ddi_intr_remove_handler(g_pahIntrs[0]);
if (rc == DDI_SUCCESS)
ddi_intr_free(g_pahIntrs[0]);
}
if (g_fSoftIntRegistered)
{
ddi_intr_remove_softint(g_hSoftIntr);
mutex_destroy(&g_HighLevelIrqMtx);
g_fSoftIntRegistered = false;
}
mutex_destroy(&g_IrqMtx);
RTMemFree(g_pahIntrs);
}
/*
* Autoconfiguration entry points.
*/
int
efe_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
ddi_acc_handle_t pci;
int types;
int count;
int actual;
uint_t pri;
efe_t *efep;
mac_register_t *macp;
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
efep = ddi_get_driver_private(dip);
return (efe_resume(efep));
default:
return (DDI_FAILURE);
}
/*
* PCI configuration.
*/
if (pci_config_setup(dip, &pci) != DDI_SUCCESS) {
efe_error(dip, "unable to setup PCI configuration!");
return (DDI_FAILURE);
}
pci_config_put16(pci, PCI_CONF_COMM,
pci_config_get16(pci, PCI_CONF_COMM) | PCI_COMM_MAE | PCI_COMM_ME);
pci_config_teardown(&pci);
if (ddi_intr_get_supported_types(dip, &types)
!= DDI_SUCCESS || !(types & DDI_INTR_TYPE_FIXED)) {
efe_error(dip, "fixed interrupts not supported!");
return (DDI_FAILURE);
}
if (ddi_intr_get_nintrs(dip, DDI_INTR_TYPE_FIXED, &count)
!= DDI_SUCCESS || count != 1) {
efe_error(dip, "no fixed interrupts available!");
return (DDI_FAILURE);
}
/*
* Initialize soft state.
*/
efep = kmem_zalloc(sizeof (efe_t), KM_SLEEP);
ddi_set_driver_private(dip, efep);
efep->efe_dip = dip;
if (ddi_regs_map_setup(dip, 1, (caddr_t *)&efep->efe_regs, 0, 0,
&efe_regs_acc_attr, &efep->efe_regs_acch) != DDI_SUCCESS) {
efe_error(dip, "unable to setup register mapping!");
goto failure;
}
efep->efe_rx_ring = efe_ring_alloc(efep->efe_dip, RXDESCL);
if (efep->efe_rx_ring == NULL) {
efe_error(efep->efe_dip, "unable to allocate rx ring!");
goto failure;
}
efep->efe_tx_ring = efe_ring_alloc(efep->efe_dip, TXDESCL);
if (efep->efe_tx_ring == NULL) {
efe_error(efep->efe_dip, "unable to allocate tx ring!");
goto failure;
}
if (ddi_intr_alloc(dip, &efep->efe_intrh, DDI_INTR_TYPE_FIXED, 0,
count, &actual, DDI_INTR_ALLOC_STRICT) != DDI_SUCCESS ||
actual != count) {
efe_error(dip, "unable to allocate fixed interrupt!");
goto failure;
}
if (ddi_intr_get_pri(efep->efe_intrh, &pri) != DDI_SUCCESS ||
pri >= ddi_intr_get_hilevel_pri()) {
efe_error(dip, "unable to get valid interrupt priority!");
goto failure;
}
mutex_init(&efep->efe_intrlock, NULL, MUTEX_DRIVER,
DDI_INTR_PRI(pri));
mutex_init(&efep->efe_txlock, NULL, MUTEX_DRIVER,
DDI_INTR_PRI(pri));
/*
* Initialize device.
*/
mutex_enter(&efep->efe_intrlock);
mutex_enter(&efep->efe_txlock);
efe_reset(efep);
mutex_exit(&efep->efe_txlock);
mutex_exit(&efep->efe_intrlock);
/* Use factory address as default */
efe_getaddr(efep, efep->efe_macaddr);
/*
* Enable the ISR.
*/
if (ddi_intr_add_handler(efep->efe_intrh, efe_intr, efep, NULL)
!= DDI_SUCCESS) {
efe_error(dip, "unable to add interrupt handler!");
goto failure;
}
if (ddi_intr_enable(efep->efe_intrh) != DDI_SUCCESS) {
efe_error(dip, "unable to enable interrupt!");
goto failure;
}
/*
* Allocate MII resources.
*/
if ((efep->efe_miih = mii_alloc(efep, dip, &efe_mii_ops)) == NULL) {
efe_error(dip, "unable to allocate mii resources!");
goto failure;
}
/*
* Allocate MAC resources.
*/
if ((macp = mac_alloc(MAC_VERSION)) == NULL) {
efe_error(dip, "unable to allocate mac resources!");
goto failure;
}
macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
macp->m_driver = efep;
macp->m_dip = dip;
macp->m_src_addr = efep->efe_macaddr;
macp->m_callbacks = &efe_m_callbacks;
macp->m_min_sdu = 0;
macp->m_max_sdu = ETHERMTU;
macp->m_margin = VLAN_TAGSZ;
if (mac_register(macp, &efep->efe_mh) != 0) {
efe_error(dip, "unable to register with mac!");
goto failure;
}
mac_free(macp);
ddi_report_dev(dip);
return (DDI_SUCCESS);
failure:
if (macp != NULL) {
mac_free(macp);
}
if (efep->efe_miih != NULL) {
mii_free(efep->efe_miih);
}
if (efep->efe_intrh != NULL) {
(void) ddi_intr_disable(efep->efe_intrh);
(void) ddi_intr_remove_handler(efep->efe_intrh);
(void) ddi_intr_free(efep->efe_intrh);
}
mutex_destroy(&efep->efe_txlock);
mutex_destroy(&efep->efe_intrlock);
if (efep->efe_tx_ring != NULL) {
efe_ring_free(&efep->efe_tx_ring);
}
if (efep->efe_rx_ring != NULL) {
efe_ring_free(&efep->efe_rx_ring);
}
if (efep->efe_regs_acch != NULL) {
ddi_regs_map_free(&efep->efe_regs_acch);
}
kmem_free(efep, sizeof (efe_t));
return (DDI_FAILURE);
}
/*
* config_handler and vq_handlers may be allocated on stack.
* Take precautions not to loose them.
*/
static int
virtio_register_intx(struct virtio_softc *sc,
struct virtio_int_handler *config_handler,
struct virtio_int_handler vq_handlers[])
{
int vq_handler_count;
int config_handler_count = 0;
int actual;
struct virtio_handler_container *vhc;
int ret = DDI_FAILURE;
/* Walk the handler table to get the number of handlers. */
for (vq_handler_count = 0;
vq_handlers && vq_handlers[vq_handler_count].vh_func;
vq_handler_count++)
;
if (config_handler != NULL)
config_handler_count = 1;
vhc = kmem_zalloc(sizeof (struct virtio_handler_container) +
sizeof (struct virtio_int_handler) * vq_handler_count, KM_SLEEP);
vhc->nhandlers = vq_handler_count;
(void) memcpy(vhc->vq_handlers, vq_handlers,
sizeof (struct virtio_int_handler) * vq_handler_count);
if (config_handler != NULL) {
(void) memcpy(&vhc->config_handler, config_handler,
sizeof (struct virtio_int_handler));
}
/* Just a single entry for a single interrupt. */
sc->sc_intr_htable = kmem_zalloc(sizeof (ddi_intr_handle_t), KM_SLEEP);
ret = ddi_intr_alloc(sc->sc_dev, sc->sc_intr_htable,
DDI_INTR_TYPE_FIXED, 0, 1, &actual, DDI_INTR_ALLOC_NORMAL);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN,
"Failed to allocate a fixed interrupt: %d", ret);
goto out_int_alloc;
}
ASSERT(actual == 1);
sc->sc_intr_num = 1;
ret = ddi_intr_get_pri(sc->sc_intr_htable[0], &sc->sc_intr_prio);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN, "ddi_intr_get_pri failed");
goto out_prio;
}
ret = ddi_intr_add_handler(sc->sc_intr_htable[0],
virtio_intx_dispatch, sc, vhc);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN, "ddi_intr_add_handler failed");
goto out_add_handlers;
}
/* We know we are not using MSI, so set the config offset. */
sc->sc_config_offset = VIRTIO_CONFIG_DEVICE_CONFIG_NOMSI;
return (DDI_SUCCESS);
out_add_handlers:
out_prio:
(void) ddi_intr_free(sc->sc_intr_htable[0]);
out_int_alloc:
kmem_free(sc->sc_intr_htable, sizeof (ddi_intr_handle_t));
kmem_free(vhc, sizeof (struct virtio_int_handler) *
(vq_handler_count + config_handler_count));
return (ret);
}
static int
virtio_register_msi(struct virtio_softc *sc,
struct virtio_int_handler *config_handler,
struct virtio_int_handler vq_handlers[], int intr_types)
{
int count, actual;
int int_type;
int i;
int handler_count;
int ret;
/* If both MSI and MSI-x are reported, prefer MSI-x. */
int_type = DDI_INTR_TYPE_MSI;
if (intr_types & DDI_INTR_TYPE_MSIX)
int_type = DDI_INTR_TYPE_MSIX;
/* Walk the handler table to get the number of handlers. */
for (handler_count = 0;
vq_handlers && vq_handlers[handler_count].vh_func;
handler_count++)
;
/* +1 if there is a config change handler. */
if (config_handler != NULL)
handler_count++;
/* Number of MSIs supported by the device. */
ret = ddi_intr_get_nintrs(sc->sc_dev, int_type, &count);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN, "ddi_intr_get_nintrs failed");
return (ret);
}
/*
* Those who try to register more handlers then the device
* supports shall suffer.
*/
ASSERT(handler_count <= count);
sc->sc_intr_htable = kmem_zalloc(sizeof (ddi_intr_handle_t) *
handler_count, KM_SLEEP);
ret = ddi_intr_alloc(sc->sc_dev, sc->sc_intr_htable, int_type, 0,
handler_count, &actual, DDI_INTR_ALLOC_NORMAL);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN, "Failed to allocate MSI: %d", ret);
goto out_msi_alloc;
}
if (actual != handler_count) {
dev_err(sc->sc_dev, CE_WARN,
"Not enough MSI available: need %d, available %d",
handler_count, actual);
goto out_msi_available;
}
sc->sc_intr_num = handler_count;
sc->sc_intr_config = B_FALSE;
if (config_handler != NULL) {
sc->sc_intr_config = B_TRUE;
}
/* Assume they are all same priority */
ret = ddi_intr_get_pri(sc->sc_intr_htable[0], &sc->sc_intr_prio);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN, "ddi_intr_get_pri failed");
goto out_msi_prio;
}
/* Add the vq handlers */
for (i = 0; vq_handlers[i].vh_func; i++) {
ret = ddi_intr_add_handler(sc->sc_intr_htable[i],
vq_handlers[i].vh_func, sc, vq_handlers[i].vh_priv);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN,
"ddi_intr_add_handler failed");
/* Remove the handlers that succeeded. */
while (--i >= 0) {
(void) ddi_intr_remove_handler(
sc->sc_intr_htable[i]);
}
goto out_add_handlers;
}
}
/* Don't forget the config handler */
if (config_handler != NULL) {
ret = ddi_intr_add_handler(sc->sc_intr_htable[i],
config_handler->vh_func, sc, config_handler->vh_priv);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN,
"ddi_intr_add_handler failed");
/* Remove the handlers that succeeded. */
while (--i >= 0) {
(void) ddi_intr_remove_handler(
sc->sc_intr_htable[i]);
}
goto out_add_handlers;
}
}
/* We know we are using MSI, so set the config offset. */
sc->sc_config_offset = VIRTIO_CONFIG_DEVICE_CONFIG_MSI;
ret = ddi_intr_get_cap(sc->sc_intr_htable[0], &sc->sc_intr_cap);
/* Just in case. */
if (ret != DDI_SUCCESS)
sc->sc_intr_cap = 0;
out_add_handlers:
out_msi_prio:
out_msi_available:
for (i = 0; i < actual; i++)
(void) ddi_intr_free(sc->sc_intr_htable[i]);
out_msi_alloc:
kmem_free(sc->sc_intr_htable, sizeof (ddi_intr_handle_t) * count);
return (ret);
}
void
virtio_release_ints(struct virtio_softc *sc)
{
int i;
int ret;
/* We were running with MSI, unbind them. */
if (sc->sc_config_offset == VIRTIO_CONFIG_DEVICE_CONFIG_MSI) {
/* Unbind all vqs */
for (i = 0; i < sc->sc_nvqs; i++) {
ddi_put16(sc->sc_ioh,
/* LINTED E_BAD_PTR_CAST_ALIGN */
(uint16_t *)(sc->sc_io_addr +
VIRTIO_CONFIG_QUEUE_SELECT), i);
ddi_put16(sc->sc_ioh,
/* LINTED E_BAD_PTR_CAST_ALIGN */
(uint16_t *)(sc->sc_io_addr +
VIRTIO_CONFIG_QUEUE_VECTOR),
VIRTIO_MSI_NO_VECTOR);
}
/* And the config */
/* LINTED E_BAD_PTR_CAST_ALIGN */
ddi_put16(sc->sc_ioh, (uint16_t *)(sc->sc_io_addr +
VIRTIO_CONFIG_CONFIG_VECTOR),
VIRTIO_MSI_NO_VECTOR);
}
/* Disable the iterrupts. Either the whole block, or one by one. */
if (sc->sc_intr_cap & DDI_INTR_FLAG_BLOCK) {
ret = ddi_intr_block_disable(sc->sc_intr_htable,
sc->sc_intr_num);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN,
"Failed to disable MSIs, won't be able to "
"reuse next time");
}
} else {
for (i = 0; i < sc->sc_intr_num; i++) {
ret = ddi_intr_disable(sc->sc_intr_htable[i]);
if (ret != DDI_SUCCESS) {
dev_err(sc->sc_dev, CE_WARN,
"Failed to disable interrupt %d, "
"won't be able to reuse", i);
}
}
}
for (i = 0; i < sc->sc_intr_num; i++) {
(void) ddi_intr_remove_handler(sc->sc_intr_htable[i]);
}
for (i = 0; i < sc->sc_intr_num; i++)
(void) ddi_intr_free(sc->sc_intr_htable[i]);
kmem_free(sc->sc_intr_htable, sizeof (ddi_intr_handle_t) *
sc->sc_intr_num);
/* After disabling interrupts, the config offset is non-MSI. */
sc->sc_config_offset = VIRTIO_CONFIG_DEVICE_CONFIG_NOMSI;
}
/**
* Sets IRQ for VMMDev.
*
* @returns Solaris error code.
* @param pDip Pointer to the device info structure.
*/
static int VBoxGuestSolarisAddIRQ(dev_info_t *pDip)
{
LogFlow((DEVICE_NAME "::AddIRQ: pDip=%p\n", pDip));
int IntrType = 0;
int rc = ddi_intr_get_supported_types(pDip, &IntrType);
if (rc == DDI_SUCCESS)
{
/* We won't need to bother about MSIs. */
if (IntrType & DDI_INTR_TYPE_FIXED)
{
int IntrCount = 0;
rc = ddi_intr_get_nintrs(pDip, IntrType, &IntrCount);
if ( rc == DDI_SUCCESS
&& IntrCount > 0)
{
int IntrAvail = 0;
rc = ddi_intr_get_navail(pDip, IntrType, &IntrAvail);
if ( rc == DDI_SUCCESS
&& IntrAvail > 0)
{
/* Allocated kernel memory for the interrupt handles. The allocation size is stored internally. */
g_pIntr = RTMemAlloc(IntrCount * sizeof(ddi_intr_handle_t));
if (g_pIntr)
{
int IntrAllocated;
rc = ddi_intr_alloc(pDip, g_pIntr, IntrType, 0, IntrCount, &IntrAllocated, DDI_INTR_ALLOC_NORMAL);
if ( rc == DDI_SUCCESS
&& IntrAllocated > 0)
{
g_cIntrAllocated = IntrAllocated;
uint_t uIntrPriority;
rc = ddi_intr_get_pri(g_pIntr[0], &uIntrPriority);
if (rc == DDI_SUCCESS)
{
/* Initialize the mutex. */
mutex_init(&g_IrqMtx, NULL, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority));
/* Assign interrupt handler functions and enable interrupts. */
for (int i = 0; i < IntrAllocated; i++)
{
rc = ddi_intr_add_handler(g_pIntr[i], (ddi_intr_handler_t *)VBoxGuestSolarisISR,
NULL /* No Private Data */, NULL);
if (rc == DDI_SUCCESS)
rc = ddi_intr_enable(g_pIntr[i]);
if (rc != DDI_SUCCESS)
{
/* Changing local IntrAllocated to hold so-far allocated handles for freeing. */
IntrAllocated = i;
break;
}
}
if (rc == DDI_SUCCESS)
return rc;
/* Remove any assigned handlers */
LogRel((DEVICE_NAME ":failed to assign IRQs allocated=%d\n", IntrAllocated));
for (int x = 0; x < IntrAllocated; x++)
ddi_intr_remove_handler(g_pIntr[x]);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get priority of interrupt. rc=%d\n", rc));
/* Remove allocated IRQs, too bad we can free only one handle at a time. */
for (int k = 0; k < g_cIntrAllocated; k++)
ddi_intr_free(g_pIntr[k]);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
RTMemFree(g_pIntr);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient available IRQs. rc=%d IntrAvail=%d\n", rc, IntrAvail));
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient number of IRQs. rc=%d IntrCount=%d\n", rc, IntrCount));
}
else
LogRel((DEVICE_NAME "::AddIRQ: invalid irq type. IntrType=%#x\n", IntrType));
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get supported interrupt types\n"));
return rc;
}
/**
* Sets IRQ for VMMDev.
*
* @returns Solaris error code.
* @param pDip Pointer to the device info structure.
*/
static int vgdrvSolarisAddIRQ(dev_info_t *pDip)
{
LogFlow(("vgdrvSolarisAddIRQ: pDip=%p\n", pDip));
/* Get the types of interrupt supported for this hardware. */
int fIntrType = 0;
int rc = ddi_intr_get_supported_types(pDip, &fIntrType);
if (rc == DDI_SUCCESS)
{
/* We only support fixed interrupts at this point, not MSIs. */
if (fIntrType & DDI_INTR_TYPE_FIXED)
{
/* Verify the number of interrupts supported by this device. There can only be one fixed interrupt. */
int cIntrCount = 0;
rc = ddi_intr_get_nintrs(pDip, fIntrType, &cIntrCount);
if ( rc == DDI_SUCCESS
&& cIntrCount == 1)
{
/* Allocated kernel memory for the interrupt handle. The allocation size is stored internally. */
g_pahIntrs = RTMemAllocZ(cIntrCount * sizeof(ddi_intr_handle_t));
if (g_pahIntrs)
{
/* Allocate the interrupt for this device and verify the allocation. */
int cIntrAllocated;
rc = ddi_intr_alloc(pDip, g_pahIntrs, fIntrType, 0 /* interrupt number */, cIntrCount, &cIntrAllocated,
DDI_INTR_ALLOC_NORMAL);
if ( rc == DDI_SUCCESS
&& cIntrAllocated == 1)
{
/* Get the interrupt priority assigned by the system. */
uint_t uIntrPriority;
rc = ddi_intr_get_pri(g_pahIntrs[0], &uIntrPriority);
if (rc == DDI_SUCCESS)
{
/* Check if the interrupt priority is scheduler level or above, if so we need to use a high-level
and low-level interrupt handlers with corresponding mutexes. */
cmn_err(CE_CONT, "!vboxguest: uIntrPriority=%d hilevel_pri=%d\n", uIntrPriority, ddi_intr_get_hilevel_pri());
if (uIntrPriority >= ddi_intr_get_hilevel_pri())
{
/* Initialize the high-level mutex. */
mutex_init(&g_HighLevelIrqMtx, NULL /* pszDesc */, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority));
/* Assign interrupt handler function to the interrupt handle. */
rc = ddi_intr_add_handler(g_pahIntrs[0], (ddi_intr_handler_t *)&vgdrvSolarisHighLevelISR,
NULL /* pvArg1 */, NULL /* pvArg2 */);
if (rc == DDI_SUCCESS)
{
/* Add the low-level interrupt handler. */
rc = ddi_intr_add_softint(pDip, &g_hSoftIntr, DDI_INTR_SOFTPRI_MAX,
(ddi_intr_handler_t *)&vgdrvSolarisISR, NULL /* pvArg1 */);
if (rc == DDI_SUCCESS)
{
/* Initialize the low-level mutex at the corresponding level. */
mutex_init(&g_IrqMtx, NULL /* pszDesc */, MUTEX_DRIVER,
DDI_INTR_PRI(DDI_INTR_SOFTPRI_MAX));
g_fSoftIntRegistered = true;
/* Enable the high-level interrupt. */
rc = ddi_intr_enable(g_pahIntrs[0]);
if (rc == DDI_SUCCESS)
return rc;
LogRel((DEVICE_NAME "::AddIRQ: failed to enable interrupt. rc=%d\n", rc));
mutex_destroy(&g_IrqMtx);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to add soft interrupt handler. rc=%d\n", rc));
ddi_intr_remove_handler(g_pahIntrs[0]);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to add high-level interrupt handler. rc=%d\n", rc));
mutex_destroy(&g_HighLevelIrqMtx);
}
else
{
/* Interrupt handler runs at reschedulable level, initialize the mutex at the given priority. */
mutex_init(&g_IrqMtx, NULL /* pszDesc */, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority));
/* Assign interrupt handler function to the interrupt handle. */
rc = ddi_intr_add_handler(g_pahIntrs[0], (ddi_intr_handler_t *)vgdrvSolarisISR,
NULL /* pvArg1 */, NULL /* pvArg2 */);
if (rc == DDI_SUCCESS)
{
/* Enable the interrupt. */
rc = ddi_intr_enable(g_pahIntrs[0]);
if (rc == DDI_SUCCESS)
return rc;
LogRel((DEVICE_NAME "::AddIRQ: failed to enable interrupt. rc=%d\n", rc));
mutex_destroy(&g_IrqMtx);
}
}
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get priority of interrupt. rc=%d\n", rc));
Assert(cIntrAllocated == 1);
ddi_intr_free(g_pahIntrs[0]);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", cIntrCount));
RTMemFree(g_pahIntrs);
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", cIntrCount));
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient number of IRQs. rc=%d cIntrCount=%d\n", rc, cIntrCount));
}
else
LogRel((DEVICE_NAME "::AddIRQ: fixed-type interrupts not supported. IntrType=%#x\n", fIntrType));
}
else
LogRel((DEVICE_NAME "::AddIRQ: failed to get supported interrupt types. rc=%d\n", rc));
return rc;
}
extern uint32_t
emlxs_event_queue_create(emlxs_hba_t *hba)
{
emlxs_event_queue_t *eventq = &EVENTQ;
char buf[40];
#ifdef MSI_SUPPORT
ddi_intr_handle_t handle;
uint32_t intr_pri;
int32_t actual;
uint32_t ret;
#endif /* MSI_SUPPORT */
ddi_iblock_cookie_t iblock;
/* Clear the queue */
bzero(eventq, sizeof (emlxs_event_queue_t));
/* Initialize */
(void) sprintf(buf, "?%s%d_evt_lock control variable", DRIVER_NAME,
hba->ddiinst);
cv_init(&eventq->lock_cv, buf, CV_DRIVER, NULL);
(void) sprintf(buf, "?%s%d_evt_lock mutex", DRIVER_NAME, hba->ddiinst);
if (!(hba->intr_flags & EMLXS_MSI_ENABLED)) {
/* Get the current interrupt block cookie */
(void) ddi_get_iblock_cookie(hba->dip, (uint_t)EMLXS_INUMBER,
&iblock);
/* Create the mutex lock */
mutex_init(&eventq->lock, buf, MUTEX_DRIVER, (void *)iblock);
}
#ifdef MSI_SUPPORT
else {
/* Allocate a temporary interrupt handle */
actual = 0;
ret =
ddi_intr_alloc(hba->dip, &handle, DDI_INTR_TYPE_FIXED,
EMLXS_MSI_INUMBER, 1, &actual, DDI_INTR_ALLOC_NORMAL);
if (ret != DDI_SUCCESS || actual == 0) {
cmn_err(CE_WARN,
"?%s%d: Unable to allocate temporary interrupt "
"handle. ret=%d actual=%d", DRIVER_NAME,
hba->ddiinst, ret, actual);
bzero(eventq, sizeof (emlxs_event_queue_t));
return (0);
}
/* Get the current interrupt priority */
ret = ddi_intr_get_pri(handle, &intr_pri);
if (ret != DDI_SUCCESS) {
cmn_err(CE_WARN,
"?%s%d: Unable to get interrupt priority. ret=%d",
DRIVER_NAME, hba->ddiinst, ret);
bzero(eventq, sizeof (emlxs_event_queue_t));
return (0);
}
/* Create the log mutex lock */
mutex_init(&eventq->lock, buf, MUTEX_DRIVER,
(void *)((unsigned long)intr_pri));
/* Free the temporary handle */
(void) ddi_intr_free(handle);
}
#endif
return (1);
} /* emlxs_event_queue_create() */
int
ddi_add_intr(dev_info_t *dip, uint_t inumber,
ddi_iblock_cookie_t *iblock_cookiep,
ddi_idevice_cookie_t *idevice_cookiep,
uint_t (*int_handler)(caddr_t int_handler_arg),
caddr_t int_handler_arg)
{
ddi_intr_handle_t *hdl_p;
size_t hdl_sz;
int actual, ret;
uint_t pri;
DDI_INTR_APIDBG((CE_CONT, "ddi_add_intr: name=%s%d dip=0x%p "
"inum=0x%x\n", ddi_driver_name(dip), ddi_get_instance(dip),
(void *)dip, inumber));
hdl_sz = sizeof (ddi_intr_handle_t) * (inumber + 1);
hdl_p = kmem_zalloc(hdl_sz, KM_SLEEP);
if ((ret = ddi_intr_alloc(dip, hdl_p, DDI_INTR_TYPE_FIXED,
inumber, 1, &actual, DDI_INTR_ALLOC_NORMAL)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_add_intr: "
"ddi_intr_alloc failed, ret 0x%x\n", ret));
kmem_free(hdl_p, hdl_sz);
return (DDI_INTR_NOTFOUND);
}
if ((ret = ddi_intr_get_pri(hdl_p[inumber], &pri)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_add_intr: "
"ddi_intr_get_pri failed, ret 0x%x\n", ret));
(void) ddi_intr_free(hdl_p[inumber]);
kmem_free(hdl_p, hdl_sz);
return (DDI_FAILURE);
}
if ((ret = ddi_intr_add_handler(hdl_p[inumber], (ddi_intr_handler_t *)
int_handler, int_handler_arg, NULL)) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_add_intr: "
"ddi_intr_add_handler failed, ret 0x%x\n", ret));
(void) ddi_intr_free(hdl_p[inumber]);
kmem_free(hdl_p, hdl_sz);
return (DDI_FAILURE);
}
if ((ret = ddi_intr_enable(hdl_p[inumber])) != DDI_SUCCESS) {
DDI_INTR_APIDBG((CE_CONT, "ddi_add_intr: "
"ddi_intr_enable failed, ret 0x%x\n", ret));
(void) ddi_intr_remove_handler(hdl_p[inumber]);
(void) ddi_intr_free(hdl_p[inumber]);
kmem_free(hdl_p, hdl_sz);
return (DDI_FAILURE);
}
if (iblock_cookiep)
*iblock_cookiep = (ddi_iblock_cookie_t)(uintptr_t)pri;
if (idevice_cookiep) {
idevice_cookiep->idev_vector = 0;
idevice_cookiep->idev_priority = pri;
}
kmem_free(hdl_p, hdl_sz);
return (DDI_SUCCESS);
}