Struct IbvRemoteMemoryRegionView 

pub struct IbvRemoteMemoryRegionView {
    pub rkey: u32,
    pub addr: usize,
    pub size: usize,
    pub device_name: String,
}

What a peer needs in order to address one of our registered memory regions over RDMA: the region’s rkey, its RDMA address, its size, and the device serving it.

This is the wire form of an IbvMemoryRegionView. It carries no lkey and no keepalive: an lkey only means anything to the protection domain that issued it, and the registration is kept alive by the views the owning side holds.

Fields

rkey: u32

addr: usize

RDMA address (may differ from virtual address).

size: usize

device_name: String

Name of the RDMA device this region is registered on (e.g., “mlx5_0”).

Implementations

impl IbvRemoteMemoryRegionView

pub fn try_slice(&self, offset: usize, size: usize) -> Result<Self>

Returns a view of size bytes starting at offset in the peer’s region. The slice retains the remote key and device.

Trait Implementations

impl Clone for IbvRemoteMemoryRegionView

fn clone(&self) -> IbvRemoteMemoryRegionView

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IbvRemoteMemoryRegionView

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IbvRemoteMemoryRegionView

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&IbvMemoryRegionView> for IbvRemoteMemoryRegionView

fn from(view: &IbvMemoryRegionView) -> Self

The wire transport details are fully derived from the registered MR view: the remote key, the RDMA address, the size, and the device name.

impl Named for IbvRemoteMemoryRegionView

fn typename() -> &'static str

The globally unique type name for the type. This should typically be the fully qualified Rust name of the type.

fn typehash() -> u64

A globally unique hash for this type. TODO: actually enforce perfect hashing

fn typeid() -> TypeId

The TypeId for this type. TypeIds are unique only within a binary, and should not be used for global identification.

fn port() -> u64

A globally unique numeric identifier for this type.

fn arm(&self) -> Option<&'static str>

If the named type is an enum, this returns the name of the arm of the value self.

unsafe fn arm_unchecked(self_: *const ()) -> Option<&'static str>

An unsafe version of ‘arm’, accepting a pointer to the value, for use in type-erased settings.

impl Serialize for IbvRemoteMemoryRegionView

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.