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man pages section 9: DDI and DKI Kernel Functions Oracle Solaris 11.1 Information Library |
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man pages section 9: DDI and DKI Kernel Functions Oracle Solaris 11.1 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_get_device_type_string(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)
- allocate virtual address space
#include <sys/types.h> #include <sys/buf.h> void bp_mapin(struct buf *bp);
Architecture independent level 1 (DDI/DKI).
Pointer to the buffer header structure.
The bp_mapin() function makes buffer data accessible to a driver by mapping the data into a contiguous kernel virtual address region. After bp_mapin(), the mapped buffer is accessible via the bp—>b_un.b_addr field of the buf(9S) structure.
If bp_mapin() is unable to establish a mapping, it returns without allocating space and no mapping is performed.
Any resources associated with establishing the mapping are deallocated by the bp_mapout(9F) function.
The bp_mapin() function can be called from user and kernel contexts.
bioaligned(9F), bp_mapout(9F), buf(9S)
Because bp_mapin() does not keep a reference count, bp_mapout() will wipe out any kernel mapping, including mappings that a layer above the device driver might still rely on. See bp_mapout(9F) for details.
When a driver needs to look directly at buffer data, it should call bp_mapin() without conditioning the call on other aspects of the buf(9S) structure like b_flags.
To check alignment of buffer memory, it may be more efficient for a driver to use bioaligned(9F) instead of bp_mapin().
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