arch::s390x::io::subchannel_id Struct Reference

Subsystem-Identification Word (SID) for I/O instructions. More...

Public Member Functions
constexpr auto	sch_no () const noexcept -> u16
	Extract subchannel number (bits 48-63 → u32 positions 15-0).
constexpr auto	ssid () const noexcept -> u8
	Extract subchannel set ID (bits 45-46 → u32 positions 18-17).
constexpr auto	to_raw () const noexcept -> u32
	Return raw 32-bit value for use in I/O instructions.

Static Public Member Functions
static constexpr auto	from_parts (u8 cssid, u8 ssid, u16 sch_no) noexcept -> subchannel_id
	Construct from SSID and subchannel number.

Data Fields
u32	val {0}

Detailed Description

Subsystem-Identification Word (SID) for I/O instructions.

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The documentation for this struct was generated from the following file:

• arch/s390x/io/types.cxxm