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man pages section 9: DDI and DKI Kernel Functions Oracle Solaris 10 1/13 Information Library |
csx_AccessConfigurationRegister(9F)
csx_Parse_CISTPL_BYTEORDER(9F)
csx_Parse_CISTPL_CFTABLE_ENTRY(9F)
csx_Parse_CISTPL_DEVICEGEO(9F)
csx_Parse_CISTPL_DEVICEGEO_A(9F)
csx_Parse_CISTPL_DEVICE_OA(9F)
csx_Parse_CISTPL_DEVICE_OC(9F)
csx_Parse_CISTPL_LINKTARGET(9F)
csx_Parse_CISTPL_LONGLINK_A(9F)
csx_Parse_CISTPL_LONGLINK_C(9F)
csx_Parse_CISTPL_LONGLINK_MFC(9F)
ddi_get_soft_iblock_cookie(9F)
ddi_intr_get_supported_types(9F)
ddi_prop_lookup_byte_array(9F)
ddi_prop_lookup_int64_array(9F)
ddi_prop_lookup_string_array(9F)
ddi_prop_update_byte_array(9F)
ddi_prop_update_int64_array(9F)
ddi_prop_update_string_array(9F)
ldi_prop_lookup_byte_array(9F)
ldi_prop_lookup_int64_array(9F)
ldi_prop_lookup_string_array(9F)
mac_prop_info_set_default_link_flowctrl(9F)
mac_prop_info_set_default_str(9F)
mac_prop_info_set_default_uint8(9F)
mac_prop_info_set_range_uint32(9F)
net_event_notify_unregister(9F)
net_instance_notify_register(9F)
net_instance_notify_unregister(9F)
net_instance_protocol_unregister(9F)
net_protocol_notify_register(9F)
nvlist_lookup_boolean_array(9F)
nvlist_lookup_boolean_value(9F)
nvlist_lookup_nvlist_array(9F)
nvlist_lookup_string_array(9F)
nvlist_lookup_uint16_array(9F)
nvlist_lookup_uint32_array(9F)
nvlist_lookup_uint64_array(9F)
nvpair_value_boolean_array(9F)
pci_plist_lookup_int16_array(9F)
pci_plist_lookup_int32_array(9F)
pci_plist_lookup_int64_array(9F)
pci_plist_lookup_int8_array(9F)
pci_plist_lookup_string_array(9F)
pci_plist_lookup_uint16_array(9F)
pci_plist_lookup_uint32_array(9F)
pci_plist_lookup_uint64_array(9F)
pci_plist_lookup_uint8_array(9F)
scsi_get_device_type_scsi_options(9F)
scsi_sense_cmdspecific_uint64(9F)
usb_get_current_frame_number(9F)
usb_get_max_pkts_per_isoc_request(9F)
usb_pipe_get_max_bulk_transfer_size(9F)
usb_pipe_stop_intr_polling(9F)
usb_pipe_stop_isoc_polling(9F)
- 32-bit driver ID management routines
#include <sys/ddi.h> #include <sys/id32.h> uint32_t id32_alloc(void *ptr, int flag);
void id32_free(uint32_t token);
void *id32_lookup(uint32_t token);
Solaris architecture specific (Solaris DDI).
any valid 32- or 64-bit pointer
determines whether caller can sleep for memory (see kmem_alloc(9F) for a description)
These routines were originally developed so that device drivers could manage 64-bit pointers on devices that save space only for 32-bit pointers.
Many device drivers need to pass a 32-bit value to the hardware when attempting I/O. Later, when that I/O completes, the only way the driver has to identify the request that generated that I/O is via a "token". When the I/O is initiated, the driver passes this token to the hardware. When the I/O completes the hardware passes back this 32-bit token.
Before Solaris supported 64-bit pointers, device drivers just passed a raw 32-bit pointer to the hardware. When pointers grew to be 64 bits this was no longer possible. The id32_*() routines were created to help drivers translate between 64-bit pointers and a 32-bit token.
Given a 32- or 64-bit pointer, the routine id32_alloc() allocates a 32-bit token, returning 0 if KM_NOSLEEP was specified and memory could not be allocated. The allocated token is passed back to id32_lookup() to obtain the original 32- or 64-bit pointer.
The routine id32_free() is used to free an allocated token. Once id32_free() is called, the supplied token is no longer valid.
Note that these routines have some degree of error checking. This is done so that an invalid token passed to id32_lookup() will not be accepted as valid. When id32_lookup() detects an invalid token it returns NULL. Calling routines should check for this return value so that they do not try to dereference a NULL pointer.
These functions can be called from user or interrupt context. The routine id32_alloc() should not be called from interrupt context when the KM_SLEEP flag is passed in. All other routines can be called from interrupt or kernel context.