linux-kernel - [PATCH net-next v2 0/6] rust: Add IO polling

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Message-ID: <20241005122531.20298-1-fujita.tomonori@gmail.com>
Date: Sat,  5 Oct 2024 21:25:25 +0900
From: FUJITA Tomonori <fujita.tomonori@...il.com>
To: netdev@...r.kernel.org
Cc: rust-for-linux@...r.kernel.org,
	andrew@...n.ch,
	hkallweit1@...il.com,
	tmgross@...ch.edu,
	ojeda@...nel.org,
	alex.gaynor@...il.com,
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	bjorn3_gh@...tonmail.com,
	benno.lossin@...ton.me,
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	frederic@...nel.org,
	tglx@...utronix.de,
	arnd@...db.de,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 0/6] rust: Add IO polling

Add Rust version of read_poll_timeout (include/linux/iopoll.h), which
polls periodically until a condition is met or a timeout is reached.
By using the function, the 6th patch fixes QT2025 PHY driver to sleep
until the hardware becomes ready.

As a result of the past discussion, this introduces a new type
representing a span of time instead of using core::time::Duration or
time::Ktime.

Unlike the old rust branch, This adds a wrapper for fsleep() instead
of msleep(). fsleep() automatically chooses the best sleep method
based on a duration.

v2:
- Introduce time::Delta instead of core::time::Duration
- Add some trait to Ktime for calculating timeout
- Use read_poll_timeout in QT2025 driver instead of using fsleep directly
v1: https://lore.kernel.org/netdev/20241001112512.4861-1-fujita.tomonori@gmail.com/


FUJITA Tomonori (6):
  rust: time: Implement PartialEq and PartialOrd for Ktime
  rust: time: Introduce Delta type
  rust: time: Implement addition of Ktime and Delta
  rust: time: add wrapper for fsleep function
  rust: Add read_poll_timeout function
  net: phy: qt2025: wait until PHY becomes ready

 drivers/net/phy/qt2025.rs |  11 +++-
 rust/helpers/helpers.c    |   2 +
 rust/helpers/kernel.c     |  13 +++++
 rust/helpers/time.c       |  19 +++++++
 rust/kernel/error.rs      |   1 +
 rust/kernel/io.rs         |   5 ++
 rust/kernel/io/poll.rs    |  70 +++++++++++++++++++++++
 rust/kernel/lib.rs        |   1 +
 rust/kernel/time.rs       | 113 ++++++++++++++++++++++++++++++++++++++
 9 files changed, 234 insertions(+), 1 deletion(-)
 create mode 100644 rust/helpers/kernel.c
 create mode 100644 rust/helpers/time.c
 create mode 100644 rust/kernel/io.rs
 create mode 100644 rust/kernel/io/poll.rs


base-commit: d521db38f339709ccd23c5deb7663904e626c3a6
-- 
2.34.1