zxfoundation.sys.zxio.types Module Reference

Data Structures
struct	zxfoundation::sys::zxio::io_binding
	Describes the binding of a CSS device to a user domain. More...
struct	zxfoundation::sys::zxio::io_completion
	Completion record copied from the kernel-owned binding ring. More...
struct	zxfoundation::sys::zxio::io_request
	User-visible request descriptor copied into the nucleus before CSS submission. More...

Enumerations
enum class	io_substate : u8 { bound = 0 , pending = 1 , error = 2 , revoking = 3 }
	Operational substate for I/O bindings.

Variables
u8	_reserved {0}
u8	_reserved {0}
u8	allowed_lpm {0}
u16	ccw_count {0}
u32	ccw_offset {0}
u32	completion_count {0}
u32	completion_dropped {0}
u32	completion_head {0}
u32	completion_tail {0}
io_completion	completions [IO_COMPLETION_DEPTH] {}
u16	dev_no {}
	Device number (opaque handle, CSS-IO boundary).
u8	device_status {0}
u64	dma_base {0}
	DMA-able memory base (physical).
memory::objects::memory_object_ref	dma_extent {}
	Exact map authority for DMA pages.
u64	dma_size {0}
	DMA memory size.
memory::objects::memory_object_ref	dma_storage {}
u16	flags {0}
u8	flags {0}
constexpr u32	zxfoundation::sys::zxio::IO_COMPLETION_DEPTH = 32
	Bounded kernel-owned completion records per device binding.
constexpr u32	zxfoundation::sys::zxio::IO_DMA_MAX_SEGMENTS = 32
	Maximum number of segments in a DMA scatter-gather list.
constexpr u16	zxfoundation::sys::zxio::IO_MAX_CCWS = 64
	Maximum linear format-1 CCWs accepted in one verified request.
scoms::kobject::bobject	ko {}
	SCOMS identity (offset 0).
constexpr u32	zxfoundation::sys::zxio::MAX_IO_BINDINGS = 256
	Maximum number of simultaneous I/O bindings system-wide.
io_substate	op_state {io_substate::bound}
u32	owner_domain {~0U}
	Domain that owns this binding.
u64	pending_request_id {0}
u64	request_id {0}
u64	request_id {0}
u32	residual_count {0}
u16	sch_index {0xFFFF}
	Subchannel table index.
u8	storage_key {0}
u32	storage_key_generation {0}
u8	subchannel_status {0}
bool	teardown_started {false}

Files
file	zxfoundation/sys/zxio.zcomponent/types.cxxm