driver-manager: v2.2 — real concurrent probes, redox-target build fix, registry/signal/heartbeat/AER wiring
- redox-driver-core: DeviceManager stores drivers as Arc<dyn Driver>; ConcurrentDeviceManager jobs carry priority-ordered candidate lists (static match + dynids); workers invoke the real Driver::probe() with serial-equivalent per-device semantics. The previous synthetic-Bound dispatcher reported bindings with no driver spawned and bypassed exclusive_with/quirks/blacklist on buses with >= 4 devices. - scheme.rs: SchemeSync::write matches the redox-scheme trait (&[u8]); /modalias write stores the lookup result per-handle, read returns it; O_WRONLY/O_RDWR from syscall::flag (usize) not libc (i32). - config.rs: fix double-claim bug — probe() claimed the device before exclusive_with and again before spawn; the second pcid bind would always fail EALREADY on real hardware. One claim threaded to spawn. - main.rs: set_registered_drivers() at startup (exclusive_with and /modalias were no-ops against an empty registry); heartbeat handle threaded into enumerate + hotplug; end_to_end_test/linux_loader cfg(test)-gated. - reaper.rs/sighup.rs: really install SIGCHLD/SIGHUP handlers via libc::signal (previous install fns were empty placeholders; the reaper and blacklist reload never fired in production). - unified_events.rs: AER events routed through route_to_driver with a live bound-device snapshot (new bound_device_pairs scheme accessor). - Dead code removed or test-gated: standalone pciehp/AER listener threads, ProbeOutcome enum, SharedBlacklist::len/snapshot, placeholder install fns, heartbeat cv/stop, set_reload_flag. - 94 tests pass (56 driver-manager + 33 redox-driver-core lib + 5 dynid); zero crate-local warnings on host and x86_64-unknown-redox; audit-no-stubs: 0 violations.
This commit is contained in:
+1
-1
@@ -65,7 +65,7 @@ console-to-KDE plan.
|
||||
- `../local/docs/ACPI-IMPROVEMENT-PLAN.md` — ACPI ownership, robustness, validation
|
||||
- `../local/docs/IRQ-AND-LOWLEVEL-CONTROLLERS-ENHANCEMENT-PLAN.md` — PCI/IRQ quality, MSI/MSI-X
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||||
- `../local/docs/DRM-MODERNIZATION-EXECUTION-PLAN.md` — DRM-focused execution (subsystem detail)
|
||||
- `../local/docs/DRIVER-MANAGER-MIGRATION-PLAN.md` (v2.0, 2026-07-20) — D-Phase (parallel development) + C-Phase (cutover & validation) plan to replace `pcid-spawner` with `driver-manager` (driver-manager built in parallel, not enabled before D5 ratifies; never deletes pcid-spawner; cross-references Linux 7.1 PCI driver model and CachyOS policy patterns; binding comprehensive-implementation principle per § 0.5). **Status v2.0: D-phase fully implemented + eighth-round integrations** — 46 tests passing across `redox-driver-core` (33), `redox-driver-pci` (3), `driver-manager` (46 = 39 + 6 pciehp + 1 sighup-fix), and `pcid_interface` in `local/sources/base/drivers/pcid` (6); 0 audit-no-stubs violations across 38 files; pcid_interface reads `REDBEAR_DRIVER_PCI_IRQ_MODE` and `REDBEAR_DRIVER_DISABLE_ACCEL` env vars end-to-end; observability CLI flags `--list-drivers`, `--dry-run`, `--export-blacklist`; SMP worker pool (smart scheduler for serial-vs-concurrent based on device count), C-state/P-state advisors (library), IOMMU/MSI-X/NUMA helpers (library), PciQuirkFlags wired into driver spawn (env vars), runtime PM hooks, AER foundation, hotplug polling-fallback (250ms), `/etc/driver-manager.d/` blacklist consulted at probe, `--concurrent=N` CLI flag, heartbeat publisher (JSON every 5s), AER listener (polls /scheme/acpi/aer), `SharedBlacklist::replace()` for live reload + SIGHUP reload worker, **SIGCHLD reaper thread**, `async_probe` configurable via env, `DRIVER_MANAGER_CONFIG_DIR` env var, four new concurrent.rs unit tests, six QEMU-functional test scripts, `/modalias` scheme endpoint (write MODALIAS → get driver name back), `linux_loader.rs` parses Linux `pci_device_id` C source (PCI_DEVICE / PCI_VDEVICE / PCI_DEVICE_CLASS / PCI_DEVICE_SUB) and converts each entry to `DriverMatch` with named-vendor constant lookup (INTEL, AMD, NVIDIA, etc.) for direct porting with least effort, `exclusive_with` mutual exclusion (CachyOS amdgpu/radeon pattern), `pci=nomsi` env var, `pciehp` hotplug listener (PCIe Native Hotplug events: Presence Detect Changed, Attention Button, MRL Sensor Changed, DLL State Changed), C0 service files committed in `local/sources/base` submodule. C-phase dormant via `ConditionPathExists`; operator ratification required to begin C1.
|
||||
- `../local/docs/DRIVER-MANAGER-MIGRATION-PLAN.md` (v2.2, 2026-07-22) — D-Phase (parallel development) + C-Phase (cutover & validation) plan to replace `pcid-spawner` with `driver-manager` (driver-manager built in parallel, not enabled before D5 ratifies; never deletes pcid-spawner; cross-references Linux 7.1 PCI driver model and CachyOS policy patterns; binding comprehensive-implementation principle per § 0.5). **Status v2.2: D-phase fully implemented + ninth-round integrations** — 94 tests passing across `redox-driver-core` (33 lib + 5 dynid) and `driver-manager` (56); 0 audit-no-stubs violations; concurrent probe path invokes the real `Driver::probe()` from worker threads (Arc-shared drivers, priority-ordered candidates incl. dynids, serial-equivalent semantics); redox-target build fixed (`SchemeSync::write` trait match, per-handle `/modalias` results, `syscall::flag` O_* constants); double-claim bug fixed (single pcid bind threaded to spawn); driver registry wired at startup (`exclusive_with` + `/modalias` now functional); real SIGCHLD/SIGHUP handlers installed via `libc::signal`; heartbeat counters + AER `route_to_driver` wired; zero crate-local warnings on host and redox target; pcid_interface reads `REDBEAR_DRIVER_PCI_IRQ_MODE` and `REDBEAR_DRIVER_DISABLE_ACCEL` env vars end-to-end; observability CLI flags `--list-drivers`, `--dry-run`, `--export-blacklist`; SMP worker pool (smart scheduler for serial-vs-concurrent based on device count), C-state/P-state advisors (library), IOMMU/MSI-X/NUMA helpers (library), PciQuirkFlags wired into driver spawn (env vars), runtime PM hooks, AER foundation, hotplug polling-fallback (250ms), `/etc/driver-manager.d/` blacklist consulted at probe, heartbeat publisher (JSON every 5s), AER listener (polls /scheme/acpi/aer), `SharedBlacklist::replace()` for live reload + SIGHUP reload worker, **SIGCHLD reaper thread**, `async_probe` configurable via env, `DRIVER_MANAGER_CONFIG_DIR` env var, six QEMU-functional test scripts, `/modalias` scheme endpoint (write MODALIAS → get driver name back), `linux_loader.rs` parses Linux `pci_device_id` C source (PCI_DEVICE / PCI_VDEVICE / PCI_DEVICE_CLASS / PCI_DEVICE_SUB) and converts each entry to `DriverMatch` with named-vendor constant lookup (INTEL, AMD, NVIDIA, etc.) for direct porting with least effort, `exclusive_with` mutual exclusion (CachyOS amdgpu/radeon pattern), `pci=nomsi` env var, `pciehp` hotplug listener (PCIe Native Hotplug events: Presence Detect Changed, Attention Button, MRL Sensor Changed, DLL State Changed), C0 service files committed in `local/sources/base` submodule. C-phase dormant via `ConditionPathExists`; operator ratification required to begin C1.
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- `../local/docs/WAYLAND-IMPLEMENTATION-PLAN.md` — Wayland compositor (subsystem detail)
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- `../local/docs/archived/RELIBC-IPC-ASSESSMENT-AND-IMPROVEMENT-PLAN.md` — relibc IPC surface
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- `../local/docs/GREETER-LOGIN-IMPLEMENTATION-PLAN.md` — greeter/login design
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||||
|
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+19
-12
@@ -1422,23 +1422,30 @@ When mainline updates affect our work:
|
||||
also be treated as first-class subsystem plans, not as side notes.
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||||
- `local/docs/IRQ-AND-LOWLEVEL-CONTROLLERS-ENHANCEMENT-PLAN.md` is the current umbrella plan for
|
||||
IRQ delivery, MSI/MSI-X quality, IOMMU validation, and other low-level controller completeness work.
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||||
- `local/docs/DRIVER-MANAGER-MIGRATION-PLAN.md` (v2.0, 2026-07-20) is the canonical planning
|
||||
- `local/docs/DRIVER-MANAGER-MIGRATION-PLAN.md` (v2.2, 2026-07-22) is the canonical planning
|
||||
authority for the migration from `pcid-spawner` (`local/sources/base/drivers/pcid-spawner/`) to
|
||||
`driver-manager` (`local/recipes/system/driver-manager/`). D-Phase (parallel development) +
|
||||
C-Phase (cutover & validation) — never deletes pcid-spawner; driver-manager is being built
|
||||
in parallel and is not enabled before the D5 feature-complete gate ratifies; comprehensive
|
||||
implementation (§ 0.5) is a binding constraint; cross-references Linux 7.1 PCI driver model
|
||||
and CachyOS policy patterns. v2.0 records the eighth round: `/modalias` write path is now
|
||||
wired (write MODALIAS → get driver name back via `lookup_modalias`); a smart scheduler
|
||||
decides serial-vs-concurrent based on device count (>= 4 → concurrent with worker pool);
|
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`exclusive_with` field for mutual exclusion (CachyOS amdgpu/radeon pattern — two drivers
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can claim the same PCI ID, first by priority wins); `pci=nomsi` env var sets
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`REDBEAR_DRIVER_PCI_IRQ_MODE=intx_only` (matches Linux's `pci=nomsi` kernel parameter);
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a `pciehp` hotplug listener reads `/scheme/pci/pciehp` for PCIe native hotplug events
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(Presence Detect Changed, Attention Button, MRL Sensor Changed, DLL State Changed)
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with the same polling fallback as the AER listener; `sighup` and `aer` worker threads
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now run alongside the heartbeat. 46 tests across 4 crates pass; the § 0.5 audit gate
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||||
reports 0 violations across 38 files. C-phase (C0–C4) cutover is dormant and requires
|
||||
and CachyOS policy patterns. v2.2 records the ninth round: the concurrent probe path in
|
||||
`redox-driver-core` now invokes the real `Driver::probe()` from worker threads (drivers held
|
||||
as `Arc<dyn Driver>`, priority-ordered candidate lists including dynids, serial-equivalent
|
||||
per-device semantics) — the previous synthetic-`Bound` dispatcher reported bindings with no
|
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driver spawned and bypassed `exclusive_with`/quirks/blacklist on buses with ≥ 4 devices;
|
||||
the first full `x86_64-unknown-redox` compile of the v2.1 tree is fixed (`SchemeSync::write`
|
||||
matches the redox-scheme trait with per-handle `/modalias` results; `O_WRONLY`/`O_RDWR` from
|
||||
`syscall::flag`); a latent double-claim bug in `probe()` (second pcid bind would always fail
|
||||
`EALREADY` on real hardware) is fixed by threading one claim through to spawn;
|
||||
`set_registered_drivers()` is now called at startup (previously `exclusive_with` and
|
||||
`/modalias` were no-ops against an empty registry); `SIGCHLD`/`SIGHUP` handlers are really
|
||||
installed via `libc::signal` (the reaper and blacklist reload previously never fired);
|
||||
heartbeat counters and AER `route_to_driver` are wired into the enumerate/hotplug/
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unified-event paths; superseded standalone listeners and placeholder functions are removed
|
||||
or `#[cfg(test)]`-gated. 94 tests across 4 crates pass (56 driver-manager + 33
|
||||
redox-driver-core lib + 5 dynid); the § 0.5 audit gate reports 0 violations;
|
||||
`driver-manager` compiles warning-free on host and on the redox target.
|
||||
C-phase (C0–C4) cutover is dormant and requires
|
||||
operator ratification. See `local/docs/evidence/driver-manager/D5-AUDIT.md` for
|
||||
capability-level status.
|
||||
The inline deferred comments in `config/redbear-mini.toml:31` and
|
||||
|
||||
@@ -1,11 +1,75 @@
|
||||
# Red Bear OS — `pci-spawner` → `driver-manager` Migration Plan
|
||||
|
||||
**Document status:** v2.0 canonical planning authority (supersedes v1.9 with `/modalias` write path wired, smart scheduler for serial-vs-concurrent, `exclusive_with` mutual exclusion, `pci=nomsi` env var, pciehp hotplug listener, and SIGHUP+AER worker threads)
|
||||
**Document status:** v2.2 canonical planning authority (supersedes v2.1 with a real concurrent probe path, redox-target build fixes, driver-registry wiring, real SIGCHLD/SIGHUP handlers, heartbeat + AER routing wired, and a zero-warning build)
|
||||
**Generated:** 2026-07-20
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||||
**Toolchain:** Rust nightly-2026-05-24 (edition 2024)
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||||
**Architecture:** Microkernel OS in Rust (Redox fork)
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||||
**Cross-reference baseline:** Linux kernel 7.1 at commit `ab9de95c9` (`local/reference/linux-7.1/`), CachyOS-Settings v1.3.5 (https://github.com/CachyOS/CachyOS-Settings), CachyOS/linux-cachyos 4.1k★
|
||||
|
||||
**v2.2 status update over v2.1:**
|
||||
|
||||
v2.2 records the ninth round of D-phase work, fixing defects found by the
|
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first full `x86_64-unknown-redox` compile of the v2.1 tree and by a
|
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dead-code/warning sweep:
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|
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- **Concurrent probe path is now real** (`redox-driver-core`). The
|
||||
`ConcurrentDeviceManager` previously returned a synthetic
|
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`ProbeResult::Bound` from `run_probe` without ever calling
|
||||
`Driver::probe()` — on any bus with ≥ 4 unbound devices (the production
|
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`max_concurrent_probes = 4` config) this reported bindings with no
|
||||
driver spawned and bypassed `exclusive_with`, quirks, and the
|
||||
blacklist. `DeviceManager` now stores drivers as `Arc<dyn Driver>`;
|
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concurrent jobs carry priority-ordered candidate lists (static match
|
||||
table **and** dynids); workers invoke the real `probe()` with
|
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serial-equivalent per-device semantics (Bound → claim + record,
|
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Deferred → enqueue, Fatal → stop, NotSupported → next candidate) and
|
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apply bound/deferred state in the worker. Three new tests cover real
|
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probe invocation, candidate fallback, and deferred enqueue.
|
||||
- **Redox-target build errors fixed** (`driver-manager`). `SchemeSync::write`
|
||||
now matches the redox-scheme trait (`buf: &[u8]`); the `/modalias`
|
||||
write stores the looked-up driver name per-handle and a subsequent
|
||||
read returns it. `O_WRONLY`/`O_RDWR` come from `syscall::flag`
|
||||
(usize) instead of `libc` (i32).
|
||||
- **Double-claim bug fixed.** `probe()` claimed the PCI device twice
|
||||
(once before the `exclusive_with` check, once before spawn); since
|
||||
pcid binds are exclusive, the second claim would always fail
|
||||
`EALREADY` on real hardware and no device would ever bind. The probe
|
||||
now claims once and threads the same handle through to spawn.
|
||||
- **Driver registry wired.** `set_registered_drivers()` is now called at
|
||||
startup — previously the registry stayed empty, making the
|
||||
`exclusive_with` check and the `/modalias` lookup silent no-ops.
|
||||
- **Real signal handlers.** `SIGCHLD` and `SIGHUP` handlers are now
|
||||
actually installed via `libc::signal` inside `spawn_reaper_thread` /
|
||||
`spawn_reload_worker`. The previous `install_handler` /
|
||||
`install_sighup_handler` bodies were empty placeholders, so the
|
||||
reaper and the blacklist reload never fired in production.
|
||||
- **Heartbeat counters wired.** `record_bound` / `record_spawned` /
|
||||
`record_deferred` / `record_on_error` are called from the enumerate
|
||||
path; `record_bound` / `record_unbound` from the hotplug loop. The
|
||||
heartbeat JSON no longer publishes permanent zeros.
|
||||
- **AER routing wired.** The unified event listener calls
|
||||
`route_to_driver` per AER event against a live bound-device snapshot
|
||||
(new `bound_device_pairs()` scheme accessor) and logs the decided
|
||||
`RecoveryAction`.
|
||||
- **Dead code removed or test-gated.** The superseded standalone
|
||||
pciehp/AER listener threads, the single-variant `ProbeOutcome` enum,
|
||||
`SharedBlacklist::len`/`snapshot`, the placeholder install functions,
|
||||
the heartbeat `cv`/`stop` machinery, and `set_reload_flag` are gone;
|
||||
`end_to_end_test`, `linux_loader`, `set_reap_flag`, `compute_modalias`,
|
||||
and `policy::SharedBlacklist::snapshot` are `#[cfg(test)]`-gated;
|
||||
`compute_match_modalias` / `lookup_modalias` are
|
||||
`#[cfg(any(target_os = "redox", test))]` (their only production caller
|
||||
is the redox-only scheme server).
|
||||
- **Zero warnings.** `driver-manager` compiles warning-free on the host
|
||||
and on the `x86_64-unknown-redox` target (remaining warnings are
|
||||
pre-existing in dependency crates: libredox, pcid, redox-driver-sys).
|
||||
|
||||
**v2.2 test totals:** 56 driver-manager + 33 redox-driver-core lib + 5
|
||||
dynid integration = 94 tests, all passing. `repo cook driver-manager`
|
||||
succeeds for `x86_64-unknown-redox` with zero crate-local warnings.
|
||||
|
||||
**§ 0.5 audit gate at v2.2:** 0 violations.
|
||||
|
||||
**v1.4 status update over v1.3:**
|
||||
|
||||
v1.4 records the second round of D-phase work: the policy loader is now
|
||||
|
||||
@@ -1,6 +1,32 @@
|
||||
# D5 Audit — driver-manager Feature-Complete Gate
|
||||
|
||||
**Generated:** 2026-07-20 (v2.0)
|
||||
**Generated:** 2026-07-20 (v2.2)
|
||||
|
||||
**v2.2 update (2026-07-22):** Round-nine integrations land. The concurrent
|
||||
probe path in `redox-driver-core` now invokes the real `Driver::probe()`
|
||||
from worker threads (drivers stored as `Arc<dyn Driver>`; priority-ordered
|
||||
candidate lists including dynids; serial-equivalent Bound/Deferred/Fatal/
|
||||
NotSupported semantics per device) — the previous synthetic-`Bound`
|
||||
dispatcher reported bindings with no driver spawned and bypassed
|
||||
`exclusive_with`, quirks, and the blacklist on buses with ≥ 4 devices.
|
||||
The first full `x86_64-unknown-redox` compile of the v2.1 tree surfaced
|
||||
three target errors, all fixed: `SchemeSync::write` now matches the
|
||||
redox-scheme trait (`&[u8]`, with the `/modalias` lookup result stored
|
||||
per-handle and returned on read), and `O_WRONLY`/`O_RDWR` come from
|
||||
`syscall::flag`. A latent double-claim bug in `probe()` (device claimed
|
||||
before the `exclusive_with` check and again before spawn — the second
|
||||
claim would always fail `EALREADY` on real hardware) is fixed by
|
||||
threading a single claim through to spawn. `set_registered_drivers()` is
|
||||
now called at startup (previously `exclusive_with` and `/modalias` were
|
||||
no-ops against an empty registry). `SIGCHLD` and `SIGHUP` handlers are
|
||||
now really installed via `libc::signal` (the reaper and blacklist reload
|
||||
previously never fired). Heartbeat counters and AER `route_to_driver`
|
||||
are wired into the enumerate/hotplug/unified-event paths. Superseded
|
||||
standalone listeners, placeholder install functions, and other dead code
|
||||
are removed or `#[cfg(test)]`-gated. 94 tests across 4 crates pass
|
||||
(56 driver-manager + 33 redox-driver-core lib + 5 dynid); the § 0.5
|
||||
audit gate reports 0 violations; `driver-manager` compiles warning-free
|
||||
on host and on the redox target.
|
||||
|
||||
**v2.0 update (2026-07-20):** Round-eight integrations land. `/modalias`
|
||||
write path is now wired (write MODALIAS → get driver name back via
|
||||
|
||||
@@ -54,67 +54,13 @@ impl<'a> Drop for SemaphoreGuard<'a> {
|
||||
}
|
||||
}
|
||||
|
||||
/// Outcome reported by a worker thread. The main thread converts these
|
||||
/// to the public `ProbeEvent` and applies the bound / deferred state.
|
||||
enum ProbeOutcome {
|
||||
BusEnumerated {
|
||||
bus: String,
|
||||
device_count: usize,
|
||||
},
|
||||
BusFailed {
|
||||
bus: String,
|
||||
error: crate::bus::BusError,
|
||||
},
|
||||
AlreadyBound {
|
||||
device: DeviceId,
|
||||
driver_name: String,
|
||||
},
|
||||
NoDriverFound {
|
||||
device: DeviceId,
|
||||
},
|
||||
ProbeCompleted {
|
||||
device: DeviceId,
|
||||
driver_name: String,
|
||||
result: ProbeResult,
|
||||
},
|
||||
}
|
||||
|
||||
fn outcome_to_event(o: ProbeOutcome) -> ProbeEvent {
|
||||
match o {
|
||||
ProbeOutcome::BusEnumerated {
|
||||
bus,
|
||||
device_count,
|
||||
} => ProbeEvent::BusEnumerated {
|
||||
bus,
|
||||
device_count,
|
||||
},
|
||||
ProbeOutcome::BusFailed { bus, error } => ProbeEvent::BusEnumerationFailed { bus, error },
|
||||
ProbeOutcome::AlreadyBound {
|
||||
device,
|
||||
driver_name,
|
||||
} => ProbeEvent::AlreadyBound {
|
||||
device,
|
||||
driver_name,
|
||||
},
|
||||
ProbeOutcome::NoDriverFound { device } => ProbeEvent::NoDriverFound { device },
|
||||
ProbeOutcome::ProbeCompleted {
|
||||
device,
|
||||
driver_name,
|
||||
result,
|
||||
} => ProbeEvent::ProbeCompleted {
|
||||
device,
|
||||
driver_name,
|
||||
result,
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
/// SMP-aware wrapper. Eagerly enumerates devices at construction, then
|
||||
/// dispatches probes to a worker pool with a counting semaphore.
|
||||
pub struct ConcurrentDeviceManager {
|
||||
drivers: Vec<Arc<dyn Driver>>,
|
||||
/// One entry per device-to-probe.
|
||||
jobs: Vec<(DeviceId, DeviceInfo, String)>,
|
||||
/// One entry per device-to-probe: the device plus every matching
|
||||
/// driver in registration (priority) order. Workers try candidates
|
||||
/// in order, so per-device semantics match the serial probe loop.
|
||||
jobs: Vec<(DeviceId, DeviceInfo, Vec<Arc<dyn Driver>>)>,
|
||||
/// Pre-events emitted in order before any probe result.
|
||||
pre_events: Vec<ProbeEvent>,
|
||||
/// Bound-device map shared with workers.
|
||||
@@ -124,13 +70,14 @@ pub struct ConcurrentDeviceManager {
|
||||
}
|
||||
|
||||
impl ConcurrentDeviceManager {
|
||||
/// Build a concurrent wrapper. Eagerly enumerates devices and selects
|
||||
/// the matching driver for each. Drivers are not actually cloned here
|
||||
/// — the existing match table is recorded by name and resolved at
|
||||
/// probe time against the original manager's driver set.
|
||||
/// Build a concurrent wrapper. Eagerly enumerates devices and collects
|
||||
/// every matching driver per device (static match table or dynids),
|
||||
/// in registration order. Workers probe the real driver objects
|
||||
/// through shared refs, so quirks, blacklist, and `exclusive_with`
|
||||
/// gates inside `Driver::probe` apply identically to the serial path.
|
||||
pub fn from_manager(mgr: &DeviceManager) -> Self {
|
||||
let drivers: Vec<Arc<dyn Driver>> = Vec::new();
|
||||
let mut jobs: Vec<(DeviceId, DeviceInfo, String)> = Vec::new();
|
||||
let drivers = mgr.drivers_snapshot();
|
||||
let mut jobs: Vec<(DeviceId, DeviceInfo, Vec<Arc<dyn Driver>>)> = Vec::new();
|
||||
let mut pre_events: Vec<ProbeEvent> = Vec::new();
|
||||
for bus in mgr.buses_iter() {
|
||||
let bus_name = bus.name().to_string();
|
||||
@@ -149,26 +96,23 @@ impl ConcurrentDeviceManager {
|
||||
});
|
||||
continue;
|
||||
}
|
||||
let mut matched = None;
|
||||
for driver in mgr.drivers_iter() {
|
||||
if driver
|
||||
.match_table()
|
||||
.iter()
|
||||
.any(|m| m.matches(&info))
|
||||
{
|
||||
matched = Some(driver.name().to_string());
|
||||
break;
|
||||
}
|
||||
}
|
||||
match matched {
|
||||
Some(driver_name) => jobs.push((
|
||||
info.id.clone(),
|
||||
info,
|
||||
driver_name,
|
||||
)),
|
||||
None => pre_events.push(ProbeEvent::NoDriverFound {
|
||||
let candidates: Vec<Arc<dyn Driver>> = drivers
|
||||
.iter()
|
||||
.filter(|driver| {
|
||||
driver.match_table().iter().any(|m| m.matches(&info))
|
||||
|| mgr
|
||||
.list_dynids(driver.name())
|
||||
.iter()
|
||||
.any(|m| m.matches(&info))
|
||||
})
|
||||
.map(Arc::clone)
|
||||
.collect();
|
||||
if candidates.is_empty() {
|
||||
pre_events.push(ProbeEvent::NoDriverFound {
|
||||
device: info.id,
|
||||
}),
|
||||
});
|
||||
} else {
|
||||
jobs.push((info.id.clone(), info, candidates));
|
||||
}
|
||||
}
|
||||
pre_events.push(ProbeEvent::BusEnumerated {
|
||||
@@ -186,7 +130,6 @@ impl ConcurrentDeviceManager {
|
||||
}
|
||||
|
||||
Self {
|
||||
drivers,
|
||||
jobs,
|
||||
pre_events,
|
||||
bound: Arc::new(RwLock::new(mgr.bound_devices_snapshot())),
|
||||
@@ -216,7 +159,7 @@ impl ConcurrentDeviceManager {
|
||||
pub fn enumerate(&self, max_concurrent: usize) -> Vec<ProbeEvent> {
|
||||
let cap = max_concurrent.max(1);
|
||||
let semaphore = Arc::new(CountingSemaphore::new(cap));
|
||||
let (tx, rx) = mpsc::channel::<ProbeOutcome>();
|
||||
let (tx, rx) = mpsc::channel::<ProbeEvent>();
|
||||
|
||||
let bound = Arc::clone(&self.bound);
|
||||
let deferred = Arc::clone(&self.deferred);
|
||||
@@ -235,29 +178,24 @@ impl ConcurrentDeviceManager {
|
||||
.collect();
|
||||
|
||||
thread::scope(|s| {
|
||||
for ((device_id, info, driver_name), permit) in
|
||||
for ((device_id, info, candidates), permit) in
|
||||
self.jobs.iter().cloned().zip(permits.drain(..))
|
||||
{
|
||||
let tx = tx.clone();
|
||||
let bound = Arc::clone(&bound);
|
||||
let deferred = Arc::clone(&deferred);
|
||||
let driver_name_for_thread = driver_name.clone();
|
||||
s.spawn(move || {
|
||||
let _permit = permit;
|
||||
let _ = tx.send(run_probe(
|
||||
bound,
|
||||
deferred,
|
||||
device_id,
|
||||
info,
|
||||
driver_name_for_thread,
|
||||
));
|
||||
for outcome in run_probe(bound, deferred, device_id, info, candidates) {
|
||||
let _ = tx.send(outcome);
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
drop(tx);
|
||||
|
||||
while let Ok(outcome) = rx.try_recv() {
|
||||
events.push(outcome_to_event(outcome));
|
||||
while let Ok(event) = rx.try_recv() {
|
||||
events.push(event);
|
||||
}
|
||||
events
|
||||
}
|
||||
@@ -268,24 +206,48 @@ fn run_probe(
|
||||
deferred: Arc<Mutex<Vec<(DeviceInfo, String)>>>,
|
||||
device_id: DeviceId,
|
||||
info: DeviceInfo,
|
||||
driver_name: String,
|
||||
) -> ProbeOutcome {
|
||||
// The manager keeps the only Arc<dyn Driver> for each registered
|
||||
// driver, so we cannot clone the trait object here. The probe step
|
||||
// therefore records the driver's NAME and posts a `ProbeResult::Bound`
|
||||
// outcome without calling into the actual driver. The caller (the
|
||||
// driver-manager daemon) resolves the name to the real driver and
|
||||
// invokes it in a separate, already-running phase. This is an
|
||||
// integration boundary: the concurrent manager does the high-throughput
|
||||
// dispatch and bookkeeping, while the actual driver spawn remains in
|
||||
// the driver-manager's probe path.
|
||||
let _ = (bound, deferred);
|
||||
let _ = (info, device_id.clone());
|
||||
ProbeOutcome::ProbeCompleted {
|
||||
device: device_id,
|
||||
driver_name,
|
||||
result: ProbeResult::Bound,
|
||||
candidates: Vec<Arc<dyn Driver>>,
|
||||
) -> Vec<ProbeEvent> {
|
||||
let mut events = Vec::new();
|
||||
for driver in candidates {
|
||||
let driver_name = driver.name().to_string();
|
||||
let result = driver.probe(&info);
|
||||
match &result {
|
||||
ProbeResult::Bound => {
|
||||
if let Ok(mut map) = bound.write() {
|
||||
map.insert(
|
||||
device_id.clone(),
|
||||
BoundDevice {
|
||||
info: info.clone(),
|
||||
driver_name: driver_name.clone(),
|
||||
parameters: BTreeMap::new(),
|
||||
},
|
||||
);
|
||||
}
|
||||
}
|
||||
ProbeResult::Deferred { .. } => {
|
||||
if let Ok(mut queue) = deferred.lock() {
|
||||
let already_queued = queue.iter().any(|(queued_info, queued_driver)| {
|
||||
queued_info.id == device_id && queued_driver == &driver_name
|
||||
});
|
||||
if !already_queued {
|
||||
queue.push((info.clone(), driver_name.clone()));
|
||||
}
|
||||
}
|
||||
}
|
||||
ProbeResult::Fatal { .. } | ProbeResult::NotSupported => {}
|
||||
}
|
||||
let stop = !matches!(result, ProbeResult::NotSupported);
|
||||
events.push(ProbeEvent::ProbeCompleted {
|
||||
device: device_id.clone(),
|
||||
driver_name,
|
||||
result,
|
||||
});
|
||||
if stop {
|
||||
break;
|
||||
}
|
||||
}
|
||||
events
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
@@ -296,6 +258,7 @@ mod tests {
|
||||
use crate::driver::{Driver, DriverError, ProbeResult};
|
||||
use crate::manager::{DeviceManager, ManagerConfig};
|
||||
use crate::r#match::DriverMatch;
|
||||
use std::sync::atomic::{AtomicUsize, Ordering};
|
||||
|
||||
struct CountingBus {
|
||||
devices: Vec<DeviceInfo>,
|
||||
@@ -309,10 +272,9 @@ mod tests {
|
||||
}
|
||||
}
|
||||
|
||||
/// Test driver with an empty match table. The concurrent path does
|
||||
/// not actually call `probe` (the dispatcher returns `Bound` directly
|
||||
/// in this integration boundary), so the match table contents are
|
||||
/// not exercised by the `enumerate` test.
|
||||
/// Test driver with an empty match table: `from_manager` finds no
|
||||
/// candidates for any device, so jobs stay empty regardless of what
|
||||
/// `probe` would return.
|
||||
struct EmptyDriver {
|
||||
name: &'static str,
|
||||
}
|
||||
@@ -422,6 +384,181 @@ mod tests {
|
||||
assert_eq!(c.pending_jobs(), 0);
|
||||
}
|
||||
|
||||
struct ProbeDriver {
|
||||
name: &'static str,
|
||||
priority: i32,
|
||||
matches: Vec<DriverMatch>,
|
||||
result: ProbeResult,
|
||||
probe_count: Arc<AtomicUsize>,
|
||||
}
|
||||
impl Driver for ProbeDriver {
|
||||
fn name(&self) -> &str {
|
||||
self.name
|
||||
}
|
||||
fn description(&self) -> &str {
|
||||
"probe"
|
||||
}
|
||||
fn priority(&self) -> i32 {
|
||||
self.priority
|
||||
}
|
||||
fn match_table(&self) -> &[DriverMatch] {
|
||||
&self.matches
|
||||
}
|
||||
fn probe(&self, _info: &DeviceInfo) -> ProbeResult {
|
||||
self.probe_count.fetch_add(1, Ordering::SeqCst);
|
||||
self.result.clone()
|
||||
}
|
||||
fn remove(&self, _info: &DeviceInfo) -> Result<(), DriverError> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
fn intel_match() -> DriverMatch {
|
||||
DriverMatch {
|
||||
vendor: Some(0x8086),
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
|
||||
fn test_device(index: usize) -> DeviceInfo {
|
||||
DeviceInfo {
|
||||
id: DeviceId {
|
||||
bus: "pci".to_string(),
|
||||
path: format!("0000:00:{:02x}.0", index),
|
||||
},
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x1000 + index as u16),
|
||||
class: Some(0x02),
|
||||
subclass: Some(0x00),
|
||||
prog_if: Some(0),
|
||||
revision: Some(1),
|
||||
subsystem_vendor: None,
|
||||
subsystem_device: None,
|
||||
raw_path: format!("/scheme/pci/0000:00:{:02x}.0", index),
|
||||
description: None,
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn concurrent_probe_invokes_real_driver() {
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 4,
|
||||
deferred_retry_ms: 250,
|
||||
async_probe: false,
|
||||
});
|
||||
mgr.register_bus(Box::new(CountingBus {
|
||||
devices: (0..4).map(test_device).collect(),
|
||||
}));
|
||||
let probe_count = Arc::new(AtomicUsize::new(0));
|
||||
mgr.register_driver(Box::new(ProbeDriver {
|
||||
name: "e1000d",
|
||||
priority: 0,
|
||||
matches: vec![intel_match()],
|
||||
result: ProbeResult::Bound,
|
||||
probe_count: Arc::clone(&probe_count),
|
||||
}));
|
||||
|
||||
let concurrent = ConcurrentDeviceManager::from_manager(&mgr);
|
||||
assert_eq!(concurrent.pending_jobs(), 4);
|
||||
let events = concurrent.enumerate(4);
|
||||
|
||||
assert_eq!(probe_count.load(Ordering::SeqCst), 4);
|
||||
assert_eq!(concurrent.bound_snapshot().len(), 4);
|
||||
let bound_events = events
|
||||
.iter()
|
||||
.filter(|e| {
|
||||
matches!(
|
||||
e,
|
||||
crate::manager::ProbeEvent::ProbeCompleted {
|
||||
result: ProbeResult::Bound,
|
||||
..
|
||||
}
|
||||
)
|
||||
})
|
||||
.count();
|
||||
assert_eq!(bound_events, 4);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn concurrent_probe_falls_back_to_next_candidate() {
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 2,
|
||||
deferred_retry_ms: 250,
|
||||
async_probe: false,
|
||||
});
|
||||
mgr.register_bus(Box::new(CountingBus {
|
||||
devices: vec![test_device(0)],
|
||||
}));
|
||||
let declining_count = Arc::new(AtomicUsize::new(0));
|
||||
let binding_count = Arc::new(AtomicUsize::new(0));
|
||||
mgr.register_driver(Box::new(ProbeDriver {
|
||||
name: "declining",
|
||||
priority: 10,
|
||||
matches: vec![intel_match()],
|
||||
result: ProbeResult::NotSupported,
|
||||
probe_count: Arc::clone(&declining_count),
|
||||
}));
|
||||
mgr.register_driver(Box::new(ProbeDriver {
|
||||
name: "binding",
|
||||
priority: 5,
|
||||
matches: vec![intel_match()],
|
||||
result: ProbeResult::Bound,
|
||||
probe_count: Arc::clone(&binding_count),
|
||||
}));
|
||||
|
||||
let concurrent = ConcurrentDeviceManager::from_manager(&mgr);
|
||||
assert_eq!(concurrent.pending_jobs(), 1);
|
||||
let events = concurrent.enumerate(2);
|
||||
|
||||
assert_eq!(declining_count.load(Ordering::SeqCst), 1);
|
||||
assert_eq!(binding_count.load(Ordering::SeqCst), 1);
|
||||
let bound = concurrent.bound_snapshot();
|
||||
assert_eq!(bound.len(), 1);
|
||||
assert!(bound.values().any(|b| b.driver_name == "binding"));
|
||||
let completed = events
|
||||
.iter()
|
||||
.filter(|e| matches!(e, crate::manager::ProbeEvent::ProbeCompleted { .. }))
|
||||
.count();
|
||||
assert_eq!(completed, 2);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn concurrent_probe_defers_enqueue_for_retry() {
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 2,
|
||||
deferred_retry_ms: 250,
|
||||
async_probe: false,
|
||||
});
|
||||
mgr.register_bus(Box::new(CountingBus {
|
||||
devices: vec![test_device(0)],
|
||||
}));
|
||||
mgr.register_driver(Box::new(ProbeDriver {
|
||||
name: "deferrer",
|
||||
priority: 0,
|
||||
matches: vec![intel_match()],
|
||||
result: ProbeResult::Deferred {
|
||||
reason: "waiting-for-firmware".to_string(),
|
||||
},
|
||||
probe_count: Arc::new(AtomicUsize::new(0)),
|
||||
}));
|
||||
|
||||
let concurrent = ConcurrentDeviceManager::from_manager(&mgr);
|
||||
assert_eq!(concurrent.pending_jobs(), 1);
|
||||
let events = concurrent.enumerate(2);
|
||||
|
||||
let deferred = concurrent.deferred_queue_snapshot();
|
||||
assert_eq!(deferred.len(), 1);
|
||||
assert_eq!(deferred[0].1, "deferrer");
|
||||
assert!(concurrent.bound_snapshot().is_empty());
|
||||
assert!(events.iter().any(|e| matches!(
|
||||
e,
|
||||
crate::manager::ProbeEvent::ProbeCompleted {
|
||||
result: ProbeResult::Deferred { .. },
|
||||
..
|
||||
}
|
||||
)));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn semaphore_releases_on_drop() {
|
||||
let sem = CountingSemaphore::new(1);
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
use alloc::boxed::Box;
|
||||
use alloc::collections::BTreeMap;
|
||||
use alloc::string::{String, ToString};
|
||||
use alloc::sync::Arc;
|
||||
use alloc::vec::Vec;
|
||||
|
||||
use crate::bus::{Bus, BusError};
|
||||
@@ -61,8 +62,9 @@ pub enum ProbeEvent {
|
||||
pub struct ManagerConfig {
|
||||
/// Maximum number of probes the manager should allow concurrently.
|
||||
///
|
||||
/// The current implementation probes synchronously and stores this as policy metadata for
|
||||
/// future async or threaded executors.
|
||||
/// Used by the concurrent dispatch path: workloads at or above the
|
||||
/// scheduler threshold are probed by a worker pool bounded by this
|
||||
/// value (see [`crate::concurrent`]).
|
||||
pub max_concurrent_probes: usize,
|
||||
/// Interval, in milliseconds, between deferred-probe retries.
|
||||
pub deferred_retry_ms: u64,
|
||||
@@ -73,7 +75,7 @@ pub struct ManagerConfig {
|
||||
/// Central device manager that orchestrates device discovery and driver binding.
|
||||
pub struct DeviceManager {
|
||||
buses: Vec<Box<dyn Bus>>,
|
||||
drivers: Vec<Box<dyn Driver>>,
|
||||
drivers: Vec<Arc<dyn Driver>>,
|
||||
bound_devices: BTreeMap<DeviceId, BoundDevice>,
|
||||
deferred_queue: Vec<(DeviceInfo, String)>,
|
||||
/// Dynamic-ID lists per driver (mirrors Linux `pci_driver.dynids`).
|
||||
@@ -103,7 +105,7 @@ impl DeviceManager {
|
||||
|
||||
/// Registers a driver and reorders drivers so higher-priority probes run first.
|
||||
pub fn register_driver(&mut self, driver: Box<dyn Driver>) {
|
||||
self.drivers.push(driver);
|
||||
self.drivers.push(Arc::from(driver));
|
||||
self.drivers
|
||||
.sort_by(|left, right| right.priority().cmp(&left.priority()));
|
||||
}
|
||||
@@ -181,10 +183,17 @@ impl DeviceManager {
|
||||
}
|
||||
|
||||
/// Iterate over registered drivers.
|
||||
pub fn drivers_iter(&self) -> impl Iterator<Item = &Box<dyn Driver>> {
|
||||
pub fn drivers_iter(&self) -> impl Iterator<Item = &Arc<dyn Driver>> {
|
||||
self.drivers.iter()
|
||||
}
|
||||
|
||||
/// Snapshot of the registered drivers as shared refs. The concurrent
|
||||
/// dispatch path clones these into worker jobs so probes run against
|
||||
/// the real driver objects.
|
||||
pub fn drivers_snapshot(&self) -> Vec<Arc<dyn Driver>> {
|
||||
self.drivers.clone()
|
||||
}
|
||||
|
||||
/// Snapshot of the bound-devices map.
|
||||
pub fn bound_devices_snapshot(&self) -> BTreeMap<DeviceId, BoundDevice> {
|
||||
self.bound_devices.clone()
|
||||
|
||||
@@ -1,8 +1,6 @@
|
||||
//! AER (PCI Express Advanced Error Reporting) listener.
|
||||
//! AER (PCI Express Advanced Error Reporting) event parsing and routing.
|
||||
|
||||
use std::path::Path;
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
pub use redox_driver_core::driver::{ErrorSeverity, RecoveryAction};
|
||||
|
||||
@@ -41,34 +39,6 @@ impl AerEvent {
|
||||
}
|
||||
}
|
||||
|
||||
pub fn spawn_aer_listener(
|
||||
aer_path: std::path::PathBuf,
|
||||
bind_snapshot: impl Fn() -> Vec<(String, String)> + Send + 'static,
|
||||
handle_event: impl Fn(&AerEvent, RecoveryAction) + Send + 'static,
|
||||
) -> std::thread::JoinHandle<()> {
|
||||
thread::spawn(move || run(aer_path, bind_snapshot, handle_event))
|
||||
}
|
||||
|
||||
fn run(
|
||||
aer_path: std::path::PathBuf,
|
||||
bind_snapshot: impl Fn() -> Vec<(String, String)>,
|
||||
handle_event: impl Fn(&AerEvent, RecoveryAction),
|
||||
) {
|
||||
log::info!("AER: listener thread started (path={})", aer_path.display());
|
||||
let mut last_seen: u64 = 0;
|
||||
loop {
|
||||
std::thread::sleep(Duration::from_millis(500));
|
||||
let Some(events) = read_aer_lines(&aer_path, &mut last_seen) else {
|
||||
continue;
|
||||
};
|
||||
let binds = bind_snapshot();
|
||||
for event in events {
|
||||
let action = route_to_driver(&event, &binds);
|
||||
handle_event(&event, action);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn read_aer_lines(path: &Path, last_seen: &mut u64) -> Option<Vec<AerEvent>> {
|
||||
if !path.exists() {
|
||||
return None;
|
||||
@@ -97,7 +67,7 @@ pub fn read_aer_lines(path: &Path, last_seen: &mut u64) -> Option<Vec<AerEvent>>
|
||||
}
|
||||
}
|
||||
|
||||
fn route_to_driver(event: &AerEvent, binds: &[(String, String)]) -> RecoveryAction {
|
||||
pub(crate) fn route_to_driver(event: &AerEvent, binds: &[(String, String)]) -> RecoveryAction {
|
||||
for (bdf, name) in binds {
|
||||
if bdf == &event.device {
|
||||
log::info!(
|
||||
@@ -130,10 +100,6 @@ fn stable_hash(s: &str) -> u64 {
|
||||
h
|
||||
}
|
||||
|
||||
pub fn parse_aer_line(line: &str) -> Option<AerEvent> {
|
||||
AerEvent::parse(line)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
@@ -703,11 +703,6 @@ impl Driver for DriverConfig {
|
||||
|
||||
log::info!("probing {} with driver {}", device_key, self.name);
|
||||
|
||||
let (device_path, bind_handle) = match claim_pci_device(info) {
|
||||
Ok(claimed) => claimed,
|
||||
Err(result) => return result,
|
||||
};
|
||||
|
||||
let channel_fd = match open_pcid_channel(&device_path) {
|
||||
Ok(channel_fd) => channel_fd,
|
||||
Err(result) => return result,
|
||||
|
||||
@@ -0,0 +1,279 @@
|
||||
//! End-to-end integration test for driver-manager. Exercises the full
|
||||
//! probe path with a mock pcid bus: bus enumeration → driver matching →
|
||||
//! blacklist filter → SpawnDecision committee → claim → spawn.
|
||||
//!
|
||||
//! This is the missing piece from earlier rounds. All 51 prior tests are
|
||||
//! unit tests with mocked dependencies. This test exercises the full
|
||||
//! flow end-to-end without QEMU.
|
||||
|
||||
use std::sync::{Arc, Mutex};
|
||||
|
||||
use redox_driver_core::bus::Bus;
|
||||
use redox_driver_core::device::{DeviceId, DeviceInfo};
|
||||
use redox_driver_core::driver::{Driver, DriverError, ProbeResult};
|
||||
use redox_driver_core::manager::{DeviceManager, ManagerConfig};
|
||||
use redox_driver_core::r#match::DriverMatch;
|
||||
|
||||
/// Mock pcid bus that returns a fixed set of devices.
|
||||
#[derive(Clone)]
|
||||
struct MockPciBus {
|
||||
devices: Vec<DeviceInfo>,
|
||||
}
|
||||
|
||||
impl Bus for MockPciBus {
|
||||
fn name(&self) -> &str {
|
||||
"pci"
|
||||
}
|
||||
fn enumerate_devices(&self) -> Result<Vec<DeviceInfo>, redox_driver_core::bus::BusError> {
|
||||
Ok(self.devices.clone())
|
||||
}
|
||||
}
|
||||
|
||||
/// Mock driver that records probes and returns a configurable result.
|
||||
struct MockDriver {
|
||||
name: &'static str,
|
||||
probe_result: ProbeResult,
|
||||
probe_count: Arc<Mutex<usize>>,
|
||||
matches: Vec<DriverMatch>,
|
||||
}
|
||||
|
||||
impl MockDriver {
|
||||
fn new(name: &'static str, probe_result: ProbeResult, matches: Vec<DriverMatch>) -> Self {
|
||||
Self {
|
||||
name,
|
||||
probe_result,
|
||||
probe_count: Arc::new(Mutex::new(0)),
|
||||
matches,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Driver for MockDriver {
|
||||
fn name(&self) -> &str {
|
||||
self.name
|
||||
}
|
||||
fn description(&self) -> &str {
|
||||
"mock"
|
||||
}
|
||||
fn priority(&self) -> i32 {
|
||||
0
|
||||
}
|
||||
fn match_table(&self) -> &[DriverMatch] {
|
||||
&self.matches
|
||||
}
|
||||
fn probe(&self, _info: &DeviceInfo) -> ProbeResult {
|
||||
if let Ok(mut c) = self.probe_count.lock() {
|
||||
*c += 1;
|
||||
}
|
||||
self.probe_result.clone()
|
||||
}
|
||||
fn remove(&self, _info: &DeviceInfo) -> Result<(), DriverError> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn end_to_end_probe_fires_spawn() {
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 4,
|
||||
deferred_retry_ms: 500,
|
||||
async_probe: true,
|
||||
});
|
||||
|
||||
// Mock bus with two devices: one Intel e1000, one Realtek rtl8168.
|
||||
let devices = vec![
|
||||
DeviceInfo {
|
||||
id: DeviceId {
|
||||
bus: "pci".to_string(),
|
||||
path: "0000:00:03.0".to_string(),
|
||||
},
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
subclass: Some(0x00),
|
||||
prog_if: Some(0),
|
||||
revision: Some(1),
|
||||
subsystem_vendor: None,
|
||||
subsystem_device: None,
|
||||
raw_path: "/scheme/pci/0000:00:03.0".to_string(),
|
||||
description: Some("mock-e1000".to_string()),
|
||||
},
|
||||
DeviceInfo {
|
||||
id: DeviceId {
|
||||
bus: "pci".to_string(),
|
||||
path: "0000:00:1f.2".to_string(),
|
||||
},
|
||||
vendor: Some(0x10ec),
|
||||
device: Some(0x8168),
|
||||
class: Some(0x02),
|
||||
subclass: Some(0x00),
|
||||
prog_if: Some(0),
|
||||
revision: Some(1),
|
||||
subsystem_vendor: None,
|
||||
subsystem_device: None,
|
||||
raw_path: "/scheme/pci/0000:00:1f.2".to_string(),
|
||||
description: Some("mock-rtl8168".to_string()),
|
||||
},
|
||||
];
|
||||
|
||||
let driver = Box::new(MockDriver::new(
|
||||
"e1000d",
|
||||
ProbeResult::Bound,
|
||||
vec![DriverMatch {
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
..Default::default()
|
||||
}],
|
||||
));
|
||||
|
||||
mgr.register_bus(Box::new(MockPciBus { devices }));
|
||||
mgr.register_driver(driver);
|
||||
|
||||
let events = mgr.enumerate();
|
||||
|
||||
// Assert that at least one bus enumeration and one probe completed.
|
||||
assert!(
|
||||
events
|
||||
.iter()
|
||||
.any(|e| matches!(e, redox_driver_core::manager::ProbeEvent::BusEnumerated { device_count: 2, .. }))
|
||||
);
|
||||
assert!(
|
||||
events
|
||||
.iter()
|
||||
.any(|e| matches!(e, redox_driver_core::manager::ProbeEvent::ProbeCompleted { result: ProbeResult::Bound, .. }))
|
||||
);
|
||||
|
||||
// The mock driver should have been probed at least once (probe_count
|
||||
// is per-MockDriver, not shared with the test, so we verify via
|
||||
// the ProbeCompleted event in the event list).
|
||||
let probe_completed = events
|
||||
.iter()
|
||||
.filter(|e| matches!(e, redox_driver_core::manager::ProbeEvent::ProbeCompleted { result: ProbeResult::Bound, .. }))
|
||||
.count();
|
||||
assert!(probe_completed >= 1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn end_to_end_probe_deferred_retry() {
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 4,
|
||||
deferred_retry_ms: 250,
|
||||
async_probe: true,
|
||||
});
|
||||
|
||||
let devices = vec![DeviceInfo {
|
||||
id: DeviceId {
|
||||
bus: "pci".to_string(),
|
||||
path: "0000:00:03.0".to_string(),
|
||||
},
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
subclass: Some(0x00),
|
||||
prog_if: Some(0),
|
||||
revision: Some(1),
|
||||
subsystem_vendor: None,
|
||||
subsystem_device: None,
|
||||
raw_path: "/scheme/pci/0000:00:03.0".to_string(),
|
||||
description: Some("mock-e1000".to_string()),
|
||||
}];
|
||||
|
||||
let driver = Box::new(MockDriver::new(
|
||||
"e1000d",
|
||||
ProbeResult::Deferred {
|
||||
reason: "deferred for test".to_string(),
|
||||
},
|
||||
vec![DriverMatch {
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
..Default::default()
|
||||
}],
|
||||
));
|
||||
|
||||
mgr.register_bus(Box::new(MockPciBus { devices }));
|
||||
mgr.register_driver(driver);
|
||||
|
||||
let events = mgr.enumerate();
|
||||
|
||||
// Assert that a deferred probe is reported.
|
||||
assert!(
|
||||
events
|
||||
.iter()
|
||||
.any(|e| matches!(e, redox_driver_core::manager::ProbeEvent::ProbeCompleted { result: ProbeResult::Deferred { .. }, .. }))
|
||||
);
|
||||
|
||||
// Retry deferred probes.
|
||||
let retry_events = mgr.retry_deferred();
|
||||
assert!(
|
||||
retry_events
|
||||
.iter()
|
||||
.any(|e| matches!(e, redox_driver_core::manager::ProbeEvent::ProbeCompleted { result: ProbeResult::Deferred { .. }, .. }))
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn end_to_end_probe_exclusive_with_defers() {
|
||||
// This test exercises the exclusive_with mutual exclusion in a
|
||||
// probe path. Two drivers that could claim the same device; the
|
||||
// exclusive_with field on the second one should cause it to defer
|
||||
// when the first claims the device.
|
||||
let mut mgr = DeviceManager::new(ManagerConfig {
|
||||
max_concurrent_probes: 4,
|
||||
deferred_retry_ms: 250,
|
||||
async_probe: true,
|
||||
});
|
||||
|
||||
let devices = vec![DeviceInfo {
|
||||
id: DeviceId {
|
||||
bus: "pci".to_string(),
|
||||
path: "0000:00:03.0".to_string(),
|
||||
},
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
subclass: Some(0x00),
|
||||
prog_if: Some(0),
|
||||
revision: Some(1),
|
||||
subsystem_vendor: None,
|
||||
subsystem_device: None,
|
||||
raw_path: "/scheme/pci/0000:00:03.0".to_string(),
|
||||
description: Some("mock-e1000".to_string()),
|
||||
}];
|
||||
|
||||
let first = Box::new(MockDriver::new("e1000d", ProbeResult::Bound, vec![DriverMatch {
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
..Default::default()
|
||||
}]));
|
||||
let second = Box::new(MockDriver::new("rtl8168d", ProbeResult::Bound, vec![DriverMatch {
|
||||
vendor: Some(0x10ec),
|
||||
device: Some(0x8168),
|
||||
class: Some(0x02),
|
||||
..Default::default()
|
||||
}]));
|
||||
let exclusive = Box::new(MockDriver::new("exclusive-with-e1000d", ProbeResult::Bound, vec![DriverMatch {
|
||||
vendor: Some(0x8086),
|
||||
device: Some(0x100E),
|
||||
class: Some(0x02),
|
||||
..Default::default()
|
||||
}]));
|
||||
|
||||
mgr.register_bus(Box::new(MockPciBus { devices }));
|
||||
mgr.register_driver(first);
|
||||
mgr.register_driver(second);
|
||||
mgr.register_driver(exclusive);
|
||||
|
||||
let events = mgr.enumerate();
|
||||
|
||||
// The exclusive_with field on the "exclusive-with-e1000d" driver is
|
||||
// checked at probe time. If e1000d is already bound, the exclusive
|
||||
// driver should defer.
|
||||
let probe_completed = events
|
||||
.iter()
|
||||
.filter(|e| matches!(e, redox_driver_core::manager::ProbeEvent::ProbeCompleted { .. }))
|
||||
.count();
|
||||
assert!(probe_completed >= 1);
|
||||
}
|
||||
@@ -2,13 +2,13 @@
|
||||
//! `/var/run/driver-manager.heartbeat.json` so operators can grep for
|
||||
//! `last_heartbeat` and see whether the manager is alive. Counters are
|
||||
//! supplied by an `Arc<Mutex<Stats>>` shared with the probe / hotplug
|
||||
//! loops. The publisher thread exits cleanly when the `stop` flag is set.
|
||||
//! loops.
|
||||
|
||||
extern crate alloc;
|
||||
|
||||
use std::fs;
|
||||
use std::path::Path;
|
||||
use std::sync::{Arc, Condvar, Mutex};
|
||||
use std::sync::{Arc, Mutex};
|
||||
use std::thread;
|
||||
use std::time::{Duration, SystemTime, UNIX_EPOCH};
|
||||
|
||||
@@ -27,8 +27,6 @@ pub struct Stats {
|
||||
|
||||
struct Shared {
|
||||
stats: Mutex<Stats>,
|
||||
cv: Condvar,
|
||||
stop: Mutex<bool>,
|
||||
}
|
||||
|
||||
pub struct Heartbeat {
|
||||
@@ -48,8 +46,6 @@ impl Heartbeat {
|
||||
.unwrap_or(0),
|
||||
..Default::default()
|
||||
}),
|
||||
cv: Condvar::new(),
|
||||
stop: Mutex::new(false),
|
||||
}),
|
||||
path: path.into(),
|
||||
interval,
|
||||
@@ -71,12 +67,6 @@ impl Heartbeat {
|
||||
|
||||
fn run(self) {
|
||||
loop {
|
||||
{
|
||||
let stop = self.shared.stop.lock().unwrap_or_else(|e| e.into_inner());
|
||||
if *stop {
|
||||
return;
|
||||
}
|
||||
}
|
||||
self.tick();
|
||||
std::thread::sleep(self.interval);
|
||||
}
|
||||
@@ -103,14 +93,6 @@ impl Heartbeat {
|
||||
);
|
||||
write_atomic(&self.path, body.as_bytes());
|
||||
}
|
||||
|
||||
/// Request a graceful shutdown.
|
||||
pub fn stop(&self) {
|
||||
if let Ok(mut stop) = self.shared.stop.lock() {
|
||||
*stop = true;
|
||||
self.shared.cv.notify_all();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn write_atomic(path: &Path, bytes: &[u8]) {
|
||||
|
||||
@@ -14,6 +14,7 @@ pub fn run_hotplug_loop(
|
||||
manager: Arc<Mutex<DeviceManager>>,
|
||||
scheme: Arc<DriverManagerScheme>,
|
||||
poll_interval_ms: u64,
|
||||
heartbeat: crate::heartbeat::HeartbeatHandle,
|
||||
) {
|
||||
log::info!(
|
||||
"hotplug: starting event loop ({} ms poll)",
|
||||
@@ -62,6 +63,7 @@ pub fn run_hotplug_loop(
|
||||
ProbeResult::Bound => {
|
||||
log::info!("hotplug: bound {} -> {}", device.path, driver_name);
|
||||
notify_bound_device(scheme.as_ref(), device, driver_name);
|
||||
heartbeat.record_bound();
|
||||
}
|
||||
ProbeResult::Deferred { reason } => {
|
||||
log::info!(
|
||||
@@ -103,6 +105,7 @@ pub fn run_hotplug_loop(
|
||||
if !seen_pci_devices.contains(&pci_addr) {
|
||||
log::info!("hotplug: removed {}", pci_addr);
|
||||
notify_unbind(scheme.as_ref(), &pci_addr);
|
||||
heartbeat.record_unbound();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -128,6 +131,7 @@ pub fn run_hotplug_loop(
|
||||
if *result == ProbeResult::Bound {
|
||||
resolved += 1;
|
||||
notify_bound_device(scheme.as_ref(), device, driver_name);
|
||||
heartbeat.record_bound();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -349,4 +349,40 @@ static const struct pci_device_id e1000_id_table[] = {
|
||||
assert_eq!(m.class, Some(0x02));
|
||||
assert_eq!(m.subclass, Some(0x00));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn parse_linux_id_table_reads_file() {
|
||||
let dir = std::env::temp_dir().join("rb-dm-linux-loader-file");
|
||||
let _ = fs::remove_dir_all(&dir);
|
||||
fs::create_dir_all(&dir).unwrap();
|
||||
let path = dir.join("e1000_main.c");
|
||||
fs::write(
|
||||
&path,
|
||||
r#"
|
||||
static const struct pci_device_id e1000_id_table[] = {
|
||||
{ PCI_DEVICE(0x8086, 0x100E) },
|
||||
{ 0 }
|
||||
};
|
||||
"#,
|
||||
)
|
||||
.unwrap();
|
||||
let ids = parse_linux_id_table(&path).unwrap();
|
||||
assert_eq!(ids.len(), 1);
|
||||
assert_eq!(ids[0].vendor, 0x8086);
|
||||
assert_eq!(ids[0].device, 0x100E);
|
||||
let _ = fs::remove_dir_all(&dir);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn to_driver_matches_batch_conversion() {
|
||||
let ids = parse_linux_id_table_from_source(
|
||||
r#"{ PCI_DEVICE(0x8086, 0x100E) }
|
||||
{ PCI_DEVICE(0x10ec, 0x8168) }"#,
|
||||
)
|
||||
.unwrap();
|
||||
let matches = to_driver_matches(&ids);
|
||||
assert_eq!(matches.len(), 2);
|
||||
assert_eq!(matches[0].vendor, Some(0x8086));
|
||||
assert_eq!(matches[1].vendor, Some(0x10ec));
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,8 +1,11 @@
|
||||
mod aer;
|
||||
mod config;
|
||||
#[cfg(test)]
|
||||
mod end_to_end_test;
|
||||
mod exec;
|
||||
mod heartbeat;
|
||||
mod hotplug;
|
||||
#[cfg(test)]
|
||||
mod linux_loader;
|
||||
mod modalias;
|
||||
mod modern_tech;
|
||||
@@ -49,6 +52,7 @@ impl log::Log for StderrLogger {
|
||||
fn run_enumeration(
|
||||
manager: &Arc<Mutex<DeviceManager>>,
|
||||
scheme: &DriverManagerScheme,
|
||||
heartbeat: &heartbeat::HeartbeatHandle,
|
||||
) -> (usize, usize) {
|
||||
let enum_start = Instant::now();
|
||||
let events = match manager.lock() {
|
||||
@@ -75,14 +79,18 @@ fn run_enumeration(
|
||||
ProbeResult::Bound => {
|
||||
log::info!("bound: {} -> {}", device.path, driver_name);
|
||||
notify_bound_device(scheme, device, driver_name);
|
||||
heartbeat.record_bound();
|
||||
heartbeat.record_spawned();
|
||||
bound += 1;
|
||||
}
|
||||
ProbeResult::Deferred { reason } => {
|
||||
log::info!("deferred: {} -> {} ({})", device.path, driver_name, reason);
|
||||
heartbeat.record_deferred();
|
||||
deferred += 1;
|
||||
}
|
||||
ProbeResult::Fatal { reason } => {
|
||||
log::error!("fatal: {} -> {} ({})", device.path, driver_name, reason);
|
||||
heartbeat.record_on_error();
|
||||
}
|
||||
ProbeResult::NotSupported => {
|
||||
log::debug!("not-supported: {} (no match)", device.path);
|
||||
@@ -187,6 +195,7 @@ fn main() {
|
||||
process::exit(1);
|
||||
}
|
||||
};
|
||||
config::set_registered_drivers(driver_configs.clone());
|
||||
|
||||
let policy_dir = if initfs {
|
||||
"/scheme/initfs/etc/driver-manager.d"
|
||||
@@ -288,7 +297,7 @@ fn main() {
|
||||
std::path::PathBuf::from("/var/run/driver-manager.heartbeat.json"),
|
||||
std::time::Duration::from_secs(5),
|
||||
);
|
||||
let _heartbeat_handle = heartbeat.handle();
|
||||
let heartbeat_handle = heartbeat.handle();
|
||||
let _heartbeat_thread = heartbeat.spawn();
|
||||
|
||||
crate::modern_tech::init_modern_tech();
|
||||
@@ -309,15 +318,10 @@ fn main() {
|
||||
));
|
||||
|
||||
let scheme_for_events = Arc::clone(&scheme);
|
||||
let manager_for_events = Arc::clone(&manager);
|
||||
let _events_thread = unified_events::spawn_unified_listener(
|
||||
std::path::PathBuf::from("/scheme/acpi/aer"),
|
||||
std::path::PathBuf::from("/scheme/pci/pciehp"),
|
||||
move || {
|
||||
let _m = manager_for_events.lock().unwrap_or_else(|e| e.into_inner());
|
||||
let scheme = scheme_for_events.bound_device_addresses();
|
||||
scheme.into_iter().map(|addr| (addr, String::new())).collect()
|
||||
},
|
||||
move || scheme_for_events.bound_device_pairs(),
|
||||
move |event| {
|
||||
match event {
|
||||
unified_events::UnifiedEvent::Aer(e) => {
|
||||
@@ -369,8 +373,9 @@ fn main() {
|
||||
reset_timeline_log();
|
||||
|
||||
if manager_config.async_probe {
|
||||
let heartbeat_clone = heartbeat_handle.clone();
|
||||
let handle = thread::spawn(move || {
|
||||
let (bound, deferred) = run_enumeration(&mgr_clone, scheme_clone.as_ref());
|
||||
let (bound, deferred) = run_enumeration(&mgr_clone, scheme_clone.as_ref(), &heartbeat_clone);
|
||||
log::info!("async enum: {} bound, {} deferred", bound, deferred);
|
||||
});
|
||||
if handle.join().is_err() {
|
||||
@@ -378,7 +383,7 @@ fn main() {
|
||||
process::exit(1);
|
||||
}
|
||||
} else {
|
||||
let (bound, deferred) = run_enumeration(&manager, scheme.as_ref());
|
||||
let (bound, deferred) = run_enumeration(&manager, scheme.as_ref(), &heartbeat_handle);
|
||||
log::info!("enum complete: {} bound, {} deferred", bound, deferred);
|
||||
}
|
||||
|
||||
@@ -389,7 +394,7 @@ fn main() {
|
||||
|
||||
if hotplug_mode {
|
||||
log::info!("entering hotplug event loop");
|
||||
hotplug::run_hotplug_loop(manager.clone(), scheme.clone(), 250);
|
||||
hotplug::run_hotplug_loop(manager.clone(), scheme.clone(), 250, heartbeat_handle.clone());
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
@@ -7,10 +7,12 @@
|
||||
//! MODALIAS in boot timeline JSON so the guest's /tmp/redbear-boot-timeline.json
|
||||
//! has the same format as /sys/kernel/pci/uevent on a Linux host.
|
||||
|
||||
#[cfg(test)]
|
||||
use redox_driver_core::device::DeviceInfo;
|
||||
|
||||
/// Compute the MODALIAS string for a device. Follows Linux's
|
||||
/// `pci_uevent` format from `drivers/pci/pci-driver.c:1587-1617`.
|
||||
#[cfg(test)]
|
||||
pub fn compute_modalias(info: &DeviceInfo) -> String {
|
||||
let vendor = info.vendor.unwrap_or(0);
|
||||
let device = info.device.unwrap_or(0);
|
||||
@@ -27,6 +29,7 @@ pub fn compute_modalias(info: &DeviceInfo) -> String {
|
||||
|
||||
/// Compute the MODALIAS for a list of matches. Used when registering
|
||||
/// a driver to check whether the MODALIAS matches.
|
||||
#[cfg(any(target_os = "redox", test))]
|
||||
pub fn compute_match_modalias(matches: &[redox_driver_core::r#match::DriverMatch]) -> Vec<String> {
|
||||
matches
|
||||
.iter()
|
||||
@@ -48,6 +51,7 @@ pub fn compute_match_modalias(matches: &[redox_driver_core::r#match::DriverMatch
|
||||
/// Look up a driver by MODALIAS string. Returns the driver's name if
|
||||
/// the string matches any registered driver's `match_table`, or `None`
|
||||
/// otherwise. Used by the `/modalias` scheme endpoint.
|
||||
#[cfg(any(target_os = "redox", test))]
|
||||
pub fn lookup_modalias(modalias: &str) -> Option<String> {
|
||||
for driver in crate::config::drivers_registered() {
|
||||
for m in compute_match_modalias(&driver.matches) {
|
||||
|
||||
@@ -17,8 +17,6 @@
|
||||
//! future power-management work.
|
||||
|
||||
use std::path::Path;
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
/// A pciehp event.
|
||||
#[derive(Debug, Clone)]
|
||||
@@ -59,45 +57,6 @@ impl PciehpEventKind {
|
||||
}
|
||||
}
|
||||
|
||||
/// Spawn the pciehp listener thread. Returns a join handle.
|
||||
pub fn spawn_pciehp_listener(
|
||||
pciehp_path: std::path::PathBuf,
|
||||
bind_snapshot: impl Fn() -> Vec<(String, String)> + Send + 'static,
|
||||
handle_event: impl Fn(&PciehpEvent) + Send + 'static,
|
||||
) -> thread::JoinHandle<()> {
|
||||
thread::Builder::new()
|
||||
.name("driver-manager-pciehp".to_string())
|
||||
.spawn(move || run(pciehp_path, bind_snapshot, handle_event))
|
||||
.expect("spawn pciehp listener")
|
||||
}
|
||||
|
||||
fn run(
|
||||
pciehp_path: std::path::PathBuf,
|
||||
bind_snapshot: impl Fn() -> Vec<(String, String)>,
|
||||
handle_event: impl Fn(&PciehpEvent),
|
||||
) {
|
||||
log::info!(
|
||||
"pciehp: listener thread started (path={})",
|
||||
pciehp_path.display()
|
||||
);
|
||||
let mut last_seen: u64 = 0;
|
||||
loop {
|
||||
std::thread::sleep(Duration::from_millis(500));
|
||||
let Some(events) = read_pciehp_lines(&pciehp_path, &mut last_seen) else {
|
||||
continue;
|
||||
};
|
||||
let _binds = bind_snapshot();
|
||||
for event in events {
|
||||
log::info!(
|
||||
"pciehp: event kind={} device={}",
|
||||
event.kind.label(),
|
||||
event.device
|
||||
);
|
||||
handle_event(&event);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn read_pciehp_lines(path: &Path, last_seen: &mut u64) -> Option<Vec<PciehpEvent>> {
|
||||
if !path.exists() {
|
||||
return None;
|
||||
|
||||
@@ -155,14 +155,10 @@ impl SharedBlacklist {
|
||||
pub fn is_blacklisted(&self, module: &str) -> bool {
|
||||
self.inner
|
||||
.read()
|
||||
.map(|b| b.names.contains(module))
|
||||
.map(|b| b.is_blacklisted(module))
|
||||
.unwrap_or(false)
|
||||
}
|
||||
|
||||
pub fn len(&self) -> usize {
|
||||
self.inner.read().map(|b| b.names.len()).unwrap_or(0)
|
||||
}
|
||||
|
||||
/// Replace the in-memory blacklist with a fresh load from the
|
||||
/// configured source path. Returns the new count, or an error if
|
||||
/// the load failed.
|
||||
@@ -178,6 +174,7 @@ impl SharedBlacklist {
|
||||
}
|
||||
|
||||
/// Snapshot the in-memory blacklist for read-only iteration.
|
||||
#[cfg(test)]
|
||||
pub fn snapshot(&self) -> Blacklist {
|
||||
self.inner
|
||||
.read()
|
||||
|
||||
@@ -26,6 +26,7 @@ extern "C" fn sigchld_handler(_sig: i32) {
|
||||
}
|
||||
|
||||
/// Externally trigger a reap cycle. Async-signal-safe.
|
||||
#[cfg(test)]
|
||||
pub fn set_reap_flag() {
|
||||
REAP_FLAG.store(true, Ordering::SeqCst);
|
||||
}
|
||||
@@ -39,6 +40,9 @@ pub fn spawn_reaper_thread<F>(on_reap: F) -> thread::JoinHandle<()>
|
||||
where
|
||||
F: Fn(u32) + Send + 'static,
|
||||
{
|
||||
unsafe {
|
||||
libc::signal(libc::SIGCHLD, sigchld_handler as *const () as libc::sighandler_t);
|
||||
}
|
||||
thread::Builder::new()
|
||||
.name("driver-manager-sigchld".to_string())
|
||||
.spawn(move || run(on_reap))
|
||||
@@ -67,17 +71,6 @@ fn run<F: Fn(u32)>(on_reap: F) {
|
||||
}
|
||||
}
|
||||
|
||||
/// Install the SIGCHLD signal handler. The actual `libc::signal` call
|
||||
/// is delegated to the host program to avoid a libc Cargo dep. Callers
|
||||
/// that have libc available can use the `install_handler_unsafe` helper
|
||||
/// instead. (Kept as a placeholder per the v1.7 sighup design.)
|
||||
pub fn install_handler() {
|
||||
// In v1.7 we keep the worker, and the public `set_reap_flag`
|
||||
// function below. The actual signal-handler installation is delegated
|
||||
// to the host program (e.g. an init script) which knows the local
|
||||
// libc + signal-name mapping. This avoids the libc Cargo dep.
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
@@ -21,7 +21,7 @@ use syscall::Stat;
|
||||
#[cfg(target_os = "redox")]
|
||||
use syscall::error::{EACCES, EBADF, EINVAL, EIO, ENOENT, Error, Result};
|
||||
#[cfg(target_os = "redox")]
|
||||
use syscall::flag::{EventFlags, MODE_DIR, MODE_FILE, O_ACCMODE, O_RDONLY};
|
||||
use syscall::flag::{EventFlags, MODE_DIR, MODE_FILE, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY};
|
||||
#[cfg(target_os = "redox")]
|
||||
use syscall::schemev2::NewFdFlags;
|
||||
|
||||
@@ -49,6 +49,8 @@ pub struct DriverManagerScheme {
|
||||
#[cfg(target_os = "redox")]
|
||||
handles: Mutex<BTreeMap<usize, HandleKind>>,
|
||||
#[cfg(target_os = "redox")]
|
||||
modalias_results: Mutex<BTreeMap<usize, String>>,
|
||||
#[cfg(target_os = "redox")]
|
||||
next_id: AtomicUsize,
|
||||
}
|
||||
|
||||
@@ -65,6 +67,8 @@ impl DriverManagerScheme {
|
||||
#[cfg(target_os = "redox")]
|
||||
handles: Mutex::new(BTreeMap::new()),
|
||||
#[cfg(target_os = "redox")]
|
||||
modalias_results: Mutex::new(BTreeMap::new()),
|
||||
#[cfg(target_os = "redox")]
|
||||
next_id: AtomicUsize::new(ROOT_ID + 1),
|
||||
}
|
||||
}
|
||||
@@ -79,6 +83,19 @@ impl DriverManagerScheme {
|
||||
}
|
||||
}
|
||||
|
||||
pub fn bound_device_pairs(&self) -> Vec<(String, String)> {
|
||||
match self.bound_devices.lock() {
|
||||
Ok(bound_devices) => bound_devices
|
||||
.iter()
|
||||
.map(|(addr, driver)| (addr.clone(), driver.clone()))
|
||||
.collect(),
|
||||
Err(err) => {
|
||||
log::error!("driver-manager: failed to snapshot bound device pairs: {err}");
|
||||
Vec::new()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(target_os = "redox")]
|
||||
fn alloc_handle(&self, kind: HandleKind) -> Result<usize> {
|
||||
let id = self.next_id.fetch_add(1, Ordering::Relaxed);
|
||||
@@ -183,7 +200,7 @@ impl DriverManagerScheme {
|
||||
}
|
||||
|
||||
#[cfg(target_os = "redox")]
|
||||
fn read_handle_string(&self, kind: &HandleKind) -> Result<String> {
|
||||
fn read_handle_string(&self, id: usize, kind: &HandleKind) -> Result<String> {
|
||||
match kind {
|
||||
HandleKind::Root => Ok("devices\nevents\n".to_string()),
|
||||
HandleKind::Devices => {
|
||||
@@ -200,7 +217,14 @@ impl DriverManagerScheme {
|
||||
HandleKind::Device(pci_addr) => self.device_status(pci_addr),
|
||||
HandleKind::Bound => self.bound_output(),
|
||||
HandleKind::Events => self.events_output(),
|
||||
HandleKind::Modalias => Ok("write MODALIAS string to /scheme/driver-manager/modalias\n".to_string()),
|
||||
HandleKind::Modalias => {
|
||||
if let Ok(results) = self.modalias_results.lock() {
|
||||
if let Some(result) = results.get(&id) {
|
||||
return Ok(result.clone());
|
||||
}
|
||||
}
|
||||
Ok("write MODALIAS string to /scheme/driver-manager/modalias\n".to_string())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -270,7 +294,7 @@ impl SchemeSync for SchemeServer {
|
||||
_ctx: &CallerCtx,
|
||||
) -> Result<OpenResult> {
|
||||
let accmode = flags & O_ACCMODE;
|
||||
if accmode != O_RDONLY && accmode != libc::O_WRONLY && accmode != libc::O_RDWR {
|
||||
if accmode != O_RDONLY && accmode != O_WRONLY && accmode != O_RDWR {
|
||||
return Err(Error::new(EACCES));
|
||||
}
|
||||
|
||||
@@ -295,7 +319,7 @@ impl SchemeSync for SchemeServer {
|
||||
_ctx: &CallerCtx,
|
||||
) -> Result<usize> {
|
||||
let kind = self.scheme.handle(id)?;
|
||||
let data = self.scheme.read_handle_string(&kind)?;
|
||||
let data = self.scheme.read_handle_string(id, &kind)?;
|
||||
let bytes = data.as_bytes();
|
||||
let offset = usize::try_from(offset).map_err(|_| Error::new(EINVAL))?;
|
||||
|
||||
@@ -341,7 +365,7 @@ impl SchemeSync for SchemeServer {
|
||||
fn write(
|
||||
&mut self,
|
||||
id: usize,
|
||||
buf: &mut [u8],
|
||||
buf: &[u8],
|
||||
_offset: u64,
|
||||
_flags: u32,
|
||||
_ctx: &CallerCtx,
|
||||
@@ -355,10 +379,13 @@ impl SchemeSync for SchemeServer {
|
||||
}
|
||||
let driver_name = crate::modalias::lookup_modalias(&line);
|
||||
let payload = format!("{}\n", driver_name.unwrap_or_default());
|
||||
let bytes = payload.as_bytes();
|
||||
let count = bytes.len().min(buf.len());
|
||||
buf[..count].copy_from_slice(&bytes[..count]);
|
||||
Ok(count)
|
||||
let mut results = self
|
||||
.scheme
|
||||
.modalias_results
|
||||
.lock()
|
||||
.map_err(|_| Error::new(EIO))?;
|
||||
results.insert(id, payload);
|
||||
Ok(buf.len())
|
||||
}
|
||||
_ => Err(Error::new(EACCES)),
|
||||
}
|
||||
@@ -372,6 +399,9 @@ impl SchemeSync for SchemeServer {
|
||||
if let Ok(mut handles) = self.scheme.handles.lock() {
|
||||
handles.remove(&id);
|
||||
}
|
||||
if let Ok(mut results) = self.scheme.modalias_results.lock() {
|
||||
results.remove(&id);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -16,6 +16,9 @@ extern "C" fn signal_handler(_sig: i32) {
|
||||
}
|
||||
|
||||
pub fn spawn_reload_worker(blacklist: Arc<SharedBlacklist>) -> thread::JoinHandle<()> {
|
||||
unsafe {
|
||||
libc::signal(libc::SIGHUP, signal_handler as *const () as libc::sighandler_t);
|
||||
}
|
||||
thread::Builder::new()
|
||||
.name("driver-manager-sighup".to_string())
|
||||
.spawn(move || run(blacklist))
|
||||
@@ -46,24 +49,6 @@ fn run(blacklist: Arc<SharedBlacklist>) {
|
||||
}
|
||||
}
|
||||
|
||||
/// Install the SIGHUP signal handler. Idempotent. Requires the
|
||||
/// `libc` crate on the target — kept as a separate `libc` dep in
|
||||
/// future work. The `set_reload_flag` function below is the
|
||||
/// public interface that an external process can use to trigger
|
||||
/// a reload without depending on SIGHUP at all.
|
||||
pub fn install_sighup_handler() {
|
||||
// In the v1.7 round we keep the worker, and the public
|
||||
// `set_reload_flag` function below. The actual signal-handler
|
||||
// installation is delegated to the host program (e.g. an init
|
||||
// script) which knows the local libc + signal-name mapping.
|
||||
// This avoids the libc Cargo dep for now.
|
||||
}
|
||||
|
||||
/// Externally trigger a reload. Async-signal-safe.
|
||||
pub fn set_reload_flag() {
|
||||
RELOAD_FLAG.store(true, Ordering::SeqCst);
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
@@ -1,18 +1,17 @@
|
||||
//! Unified event listener for AER + pciehp. Polls both
|
||||
//! `/scheme/acpi/aer` and `/scheme/pci/pciehp` every 500ms and routes
|
||||
//! events to the bound drivers. Combines the two listeners into one
|
||||
//! `/scheme/acpi/aer` and `/scheme/pci/pciehp` every 500ms and forwards
|
||||
//! events to the event handler. Combines the two listeners into one
|
||||
//! thread so we don't have two separate polling loops doing similar
|
||||
//! work.
|
||||
//!
|
||||
//! See `aer.rs` for the AER event source and `pciehp.rs` for the
|
||||
//! pciehp event source. This module is the merged listener.
|
||||
|
||||
use std::path::Path;
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
use crate::aer::{AerEvent, ErrorSeverity};
|
||||
use crate::pciehp::{PciehpEvent, PciehpEventKind};
|
||||
use crate::aer::AerEvent;
|
||||
use crate::pciehp::PciehpEvent;
|
||||
|
||||
/// A unified event: either AER (error) or pciehp (hotplug).
|
||||
#[derive(Debug, Clone)]
|
||||
@@ -22,7 +21,9 @@ pub enum UnifiedEvent {
|
||||
}
|
||||
|
||||
/// Spawn the unified event listener thread. Polls both files and
|
||||
/// routes events to `handle_event`.
|
||||
/// routes events to `handle_event`. AER events are routed through
|
||||
/// `route_to_driver` using the `bind_snapshot` of currently-bound
|
||||
/// devices; the decided recovery action is logged per event.
|
||||
pub fn spawn_unified_listener(
|
||||
aer_path: std::path::PathBuf,
|
||||
pciehp_path: std::path::PathBuf,
|
||||
@@ -53,16 +54,17 @@ fn run(
|
||||
if let Some(events) = crate::aer::read_aer_lines(&aer_path, &mut last_seen_aer) {
|
||||
let binds = bind_snapshot();
|
||||
for event in events {
|
||||
let action = crate::aer::route_to_driver(&event, &binds);
|
||||
log::info!(
|
||||
"AER: event device={} severity={:?}",
|
||||
"AER: event device={} severity={:?} action={:?}",
|
||||
event.device,
|
||||
event.severity
|
||||
event.severity,
|
||||
action
|
||||
);
|
||||
handle_event(&UnifiedEvent::Aer(event));
|
||||
}
|
||||
}
|
||||
if let Some(events) = crate::pciehp::read_pciehp_lines(&pciehp_path, &mut last_seen_pciehp) {
|
||||
let binds = bind_snapshot();
|
||||
for event in events {
|
||||
log::info!(
|
||||
"pciehp: event kind={} device={}",
|
||||
@@ -79,6 +81,7 @@ fn run(
|
||||
mod tests {
|
||||
use super::*;
|
||||
use crate::pciehp::PciehpEventKind;
|
||||
use redox_driver_core::driver::ErrorSeverity;
|
||||
|
||||
#[test]
|
||||
fn unified_event_wraps_aer() {
|
||||
|
||||
Reference in New Issue
Block a user