linux-support 0.0.25

Comprehensive Linux support for namespaces, cgroups, processes, scheduling, parsing /proc, parsing /sys, signals, hyper threads, CPUS, NUMA nodes, unusual file descriptors, PCI devices and much, much more
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// This file is part of linux-support. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT. No part of linux-support, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2020 The developers of linux-support. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT.


/// Link Speed, also known as Transfer Rate.
///
/// Linux as of 24 March 2019 does not support for PCI Express 6.0's 64 GT/s speed.
#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[derive(Deserialize, Serialize)]
#[serde(deny_unknown_fields)]
pub enum LinkSpeed
{
	/// 32 GT/s (PCI Express 5.0).
	_32,

	/// 16 GT/s (PCI Express 4.0).
	_16,

	/// 8 GT/s (PCI Express 3.0).
	_8,

	/// 5 GT/s (PCI Express 2.0).
	_5,

	/// 2.5 GT/s (PCI Express 1.0).
	_2dot5,

	/// Unknown speed.
	Unknown,
}

impl FromBytes for LinkSpeed
{
	type Error = ParseLinkSpeedError;

	#[inline(always)]
	fn from_bytes(bytes: &[u8]) -> Result<Self, Self::Error>
	{
		use self::LinkSpeed::*;

		match bytes
		{
			b"32 GT/s" => Ok(_32),
			b"16 GT/s" => Ok(_16),
			b"8 GT/s" => Ok(_8),
			b"5 GT/s" => Ok(_5),
			b"2.5 GT/s" => Ok(_2dot5),
			b"Unknown speed" => Ok(Unknown),

			_ => Err(ParseLinkSpeedError::Unrecognised(bytes.to_vec()))
		}
	}
}