Struct IqhReg 

pub struct IqhReg(/* private fields */);

Invalidation Queue Head Register (MMIO offset 0x080, 64-bit). §10.4.17.

Read-only from software. Points to the next descriptor to be fetched.

Implementations

impl IqhReg

pub const fn new() -> Self

Creates a new default initialized bitfield.

pub const fn from_bits(bits: u64) -> Self

Convert from bits.

pub const fn into_bits(self) -> u64

Convert into bits.

pub const fn qh(&self) -> u32

Queue head in 16-byte units (bits 18:4); bit 4 is zero for IQA.DW=1.

Bits: 4..19

pub const fn with_qh_checked(self, value: u32) -> Result<Self, ()>

Queue head in 16-byte units (bits 18:4); bit 4 is zero for IQA.DW=1.

Bits: 4..19

pub const fn with_qh(self, value: u32) -> Self

Queue head in 16-byte units (bits 18:4); bit 4 is zero for IQA.DW=1.

Bits: 4..19

pub const fn set_qh(&mut self, value: u32)

Queue head in 16-byte units (bits 18:4); bit 4 is zero for IQA.DW=1.

Bits: 4..19

pub const fn set_qh_checked(&mut self, value: u32) -> Result<(), ()>

Queue head in 16-byte units (bits 18:4); bit 4 is zero for IQA.DW=1.

Bits: 4..19

impl IqhReg

pub fn head_offset(&self) -> u64

Get the byte offset of the head pointer.

Trait Implementations

impl Clone for IqhReg

fn clone(&self) -> IqhReg

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IqhReg

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IqhReg

fn default() -> Self

Returns the “default value” for a type.

impl From<IqhReg> for u64

fn from(v: IqhReg) -> u64

Converts to this type from the input type.

impl From<u64> for IqhReg

fn from(v: u64) -> Self

Converts to this type from the input type.

impl Inspect for IqhReg

fn inspect(&self, req: Request<'_>)

Inspects the object.

impl Copy for IqhReg