49: fix memory safety issue in ethernet interface (closes#33) r=jordens a=cjbe
The CPU is allowed to implement normal memory writes out-of-order. Here
the write to the OWN flag in the DMA descriptor (normal memory) was
placed after the DMA tail pointer advance (in device memory, so not
reorderable). This meant the ethernet DMA engine stalled as it saw
a descriptor it did not own, and only restarted and sent the packet
when the next packet was released.
This fix will work as long as the CPU data cache is disabled. If we
want to enable the cache, the simplest method would be to mark SRAM3
as uncacheable via the MPU.
Co-authored-by: Chris Ballance <chris.ballance@physics.ox.ac.uk>
The CPU is allowed to access normal memory writes out-of-order. Here
the write to the OWN flag in the DMA descriptor (normal memory) was
placed after the DMA tail pointer advance (in device memory, so not
reorderable). This meant the ethernet DMA engine stalled as it saw
a descriptor it did not own, and only restarted and sent the packet
when the next packet was released.
This fix will work as long as the CPU data cache is disabled. If we
want to enable the cache, the simplest method would be to mark SRAM3
as uncacheable via the MPU.
53: build(deps): bump cortex-m-rtfm from v0.5.0-beta.1 to v0.5.0 r=jordens a=dependabot-preview[bot]
Bumps [cortex-m-rtfm](https://github.com/rtfm-rs/cortex-m-rtfm) from v0.5.0-beta.1 to v0.5.0.
<details>
<summary>Changelog</summary>
*Sourced from [cortex-m-rtfm's changelog](https://github.com/rtfm-rs/cortex-m-rtfm/blob/master/CHANGELOG.md).*
> ## v0.5.0 - 2019-11-14
>
> ### Added
>
> - Experimental support for homogeneous and heterogeneous multi-core
> microcontrollers has been added. Support is gated behind the `homogeneous` and
> `heterogeneous` Cargo features.
>
> ### Changed
>
> - [breaking-change][] [RFC 155] "explicit `Context` parameter" has been
> implemented.
>
> [RFC 155]: [rtfm-rs/cortex-m-rtfm#155](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/155)
>
> - [breaking-change][] [RFC 147] "all functions must be safe" has been
> implemented.
>
> [RFC 147]: [rtfm-rs/cortex-m-rtfm#147](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/147)
>
> - All the queues internally used by the framework now use `AtomicU8` indices
> instead of `AtomicUsize`; this reduces the static memory used by the
> framework.
>
> - [breaking-change][] when the `capacity` argument is omitted, the capacity of
> the task is assumed to be `1`. Before, a reasonable (but hard to predict)
> capacity was computed based on the number of `spawn` references the task had.
>
> - [breaking-change][] resources that are appear as exclusive references
> (`&mut-`) no longer appear behind the `Exclusive` newtype.
>
> - [breaking-change][] the `timer-queue` Cargo feature has been removed. The
> `schedule` API can be used without enabling any Cargo feature.
>
> - [breaking-change][] when the `schedule` API is used the type of
> `init::Context.core` changes from `cortex_m::Peripherals` to
> `rtfm::Peripherals`. The fields of `rtfm::Peripherals` do not change when
> Cargo features are enabled.
>
> - [breaking-change][] the monotonic timer used to implement the `schedule` API
> is now user configurable via the `#[app(monotonic = ..)]` argument. IMPORTANT:
> it is now the responsibility of the application author to configure and
> initialize the chosen `monotonic` timer during the `#[init]` phase.
>
> - [breaking-change][] the `peripherals` field is not include in `init::Context`
> by default. One must opt-in using the `#[app(peripherals = ..)]` argument.
>
> - [breaking-change][] the `#[exception]` and `#[interrupt]` attributes have been
> removed. Hardware tasks are now declared using the `#[task(binds = ..)]`
> attribute.
></tr></table> ... (truncated)
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- [`6b0a2df`](6b0a2df41c) Merge [#272](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/272)
- [`4fcb6ab`](4fcb6ab7cc) v0.5.0 final release
- [`e28294b`](e28294b220) Merge [#271](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/271)
- [`2441b7e`](2441b7e389) Minor docs update to monotonic
- [`85463ed`](85463ed6c3) Merge [#268](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/268) [#270](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/270)
- [`76e2345`](76e234599f) Added struct de-structure-ing example in tips & tricks
- [`e9a8394`](e9a83947bc) fix bash comparison
- [`da9c6a7`](da9c6a714e) run cfail tests only when rustc --version == $MSRV
- [`31b392f`](31b392fe3a) CI: replace compiletest-rs with trybuild
- [`72e84cb`](72e84cb297) Merge [#266](https://github-redirect.dependabot.com/rtfm-rs/cortex-m-rtfm/issues/266)
- Additional commits viewable in [compare view](1fe9767eba...6b0a2df41c)
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50: Fix TCP command interface rx buffer wrapping r=jordens a=dnadlinger
Previously, if a message spanned the end of the
receive ring buffer, the last byte in the buffer
would be missing from the to-be-decoded message,
leading to a parse error or panic.
With this commit, >3M commands were exchanged
over one socket without further issues.
Co-authored-by: David Nadlinger <code@klickverbot.at>
Previously, if a message spanned the end of the
receive ring buffer, the last byte in the buffer
would be missing from the to-be-decoded message,
leading to a parse error or panic.
With this commit, >3M commands were exchanged
over one socket without further issues.
44: build(deps): bump serde from 1.0.101 to 1.0.102 r=jordens a=dependabot-preview[bot]
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.101 to 1.0.102.
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<summary>Release notes</summary>
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> ## v1.0.102
> - Support deserializing `PathBuf` from bytes like `&Path` already did, and support deserializing `Box<Path>` ([#1656](https://github-redirect.dependabot.com/serde-rs/serde/issues/1656), thanks [@​heftig](https://github.com/heftig))
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- [`42990d8`](42990d8264) Deserialize PathBuf from bytes
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40: build(deps): bump serde from 1.0.100 to 1.0.101 r=jordens a=dependabot-preview[bot]
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.100 to 1.0.101.
<details>
<summary>Release notes</summary>
*Sourced from [serde's releases](https://github.com/serde-rs/serde/releases).*
> ## v1.0.101
> - Report errors on malformed serde attributes, like `#[serde(rename =)]` -- the compiler used to reject these itself, but when the compiler relaxed its requirements on attribute syntax these malformed attributes began silently being ignored by serde_derive
>
> - Eliminate unused variable warning when using skip_serializing inside a tuple variant of an adjacently tagged enum ([#1617](https://github-redirect.dependabot.com/serde-rs/serde/issues/1617), thanks [@​arilotter](https://github.com/arilotter))
>
> - Support skip attribute inside of newtype variants ([#1622](https://github-redirect.dependabot.com/serde-rs/serde/issues/1622), thanks [@​Xaeroxe](https://github.com/Xaeroxe))
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38: Fix system time counter r=jordens a=cjbe
Previously the time counter was incrementing every 0.5ms, versus the expected 1ms.
Co-authored-by: Chris Ballance <chris.ballance@physics.ox.ac.uk>
26: build(deps): bump panic-semihosting from 0.5.2 to 0.5.3 r=jordens a=dependabot-preview[bot]
Bumps [panic-semihosting](https://github.com/rust-embedded/panic-semihosting) from 0.5.2 to 0.5.3.
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*Sourced from [panic-semihosting's changelog](https://github.com/rust-embedded/panic-semihosting/blob/master/CHANGELOG.md).*
> ## [v0.5.3] - 2019-09-01
>
> - Added feature `jlink-quirks` to work with JLink
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