theater/cabletest

T

flamingcow ff64b59fe0 Transcribe BCM PDFs to markdown visually (tables intact); catalog probe candidates: EEE advertised in reference bringup, EMI cmds are fast-retrain enables, 1588/loopback/ECD chapters missing

2026-08-12 18:33:10 -07:00

Transcribe BCM PDFs to markdown visually (tables intact); catalog probe candidates: EEE advertised in reference bringup, EMI cmds are fast-retrain enables, 1588/loopback/ECD chapters missing

2026-08-12 18:33:10 -07:00

Render the live status to the framebuffer in Atkinson Hyperlegible Mono

2026-07-25 19:41:53 -07:00

Move the shared drm ioctl abi into internal/drm

2026-08-04 13:21:50 -07:00

Cut the drm package comments back to what is not evident from the code

2026-08-04 13:23:41 -07:00

Drive a noise cable on the i40e pair, cycling its link down and up since the module PHYs ignore everything softer, and flag its absence beside the error columns

2026-08-05 10:49:23 -07:00

.gitignore

Fold the leftover formatters into the SI ones and stop reallocating the draw scratch

2026-08-04 13:37:19 -07:00

counters.go

Poll the nic on the sampler's cadence, and reboot rather than exit when a clean return reaches PID 1

2026-08-05 08:18:44 -07:00

fatal.go

Hold a fatal error on the framebuffer and reboot in five minutes rather than exiting, since init's death drops the kernel's panic screen over the cause

2026-08-05 21:46:15 -07:00

fb.go

Hold a fatal error on the framebuffer and reboot in five minutes rather than exiting, since init's death drops the kernel's panic screen over the cause

2026-08-05 21:46:15 -07:00

frame_test.go

Checksum the header and refuse sequence numbers the sender never sent

2026-08-04 20:41:16 -07:00

frame.go

Check the header version on arrival and say what the error window actually spans

2026-08-04 21:29:03 -07:00

go.mod

Clear staticcheck, gopls and go.mod warnings

2026-07-26 10:33:38 -07:00

go.sum

Render the live status to the framebuffer in Atkinson Hyperlegible Mono

2026-07-25 19:41:53 -07:00

init.go

Drop the fatal flag now that every failed check is fatal

2026-08-04 13:33:08 -07:00

input.go

Hold a fatal error on the framebuffer and reboot in five minutes rather than exiting, since init's death drops the kernel's panic screen over the cause

2026-08-05 21:46:15 -07:00

loss_test.go

Checksum the header and refuse sequence numbers the sender never sent

2026-08-04 20:41:16 -07:00

loss.go

Fold the shutdown flags into one, take the smallest frame to the wire minimum, drop the speed column

2026-08-04 22:12:07 -07:00

main_test.go

Take the rate epoch from the slowest stream's frontier, since reading a bucket claims every stream has delivered through it

2026-08-04 22:38:10 -07:00

main.go

Hold a fatal error on the framebuffer and reboot in five minutes rather than exiting, since init's death drops the kernel's panic screen over the cause

2026-08-05 21:46:15 -07:00

mkimage

Build i40e into the appliance kernel, whose forbidden list predated the noise pair that needs it

2026-08-05 21:46:15 -07:00

noise.go

Drive a noise cable on the i40e pair, cycling its link down and up since the module PHYs ignore everything softer, and flag its absence beside the error columns

2026-08-05 10:49:23 -07:00

probe_test.go

Cover the loss window, rate window, error taxonomy and formatters with tests

2026-08-04 15:46:12 -07:00

probe.go

Fail loudly on a touch read, stop the workers before their sockets close, and file down the small edges

2026-08-04 22:26:07 -07:00

render_test.go

Cover the loss window, rate window, error taxonomy and formatters with tests

2026-08-04 15:46:12 -07:00

render.go

Fail loudly on a touch read, stop the workers before their sockets close, and file down the small edges

2026-08-04 22:26:07 -07:00

rx.go

Commit the receive counters once per batch instead of once per frame

2026-08-04 21:25:04 -07:00

sock.go

Fold the shutdown flags into one, take the smallest frame to the wire minimum, drop the speed column

2026-08-04 22:12:07 -07:00

system.go

Drive a noise cable on the i40e pair, cycling its link down and up since the module PHYs ignore everything softer, and flag its absence beside the error columns

2026-08-05 10:49:23 -07:00

text.go

Cut the comments back to the genuinely subtle ones

2026-08-01 16:14:12 -07:00

ts_test.go

Walk the control buffer by hand instead of allocating a message list per frame

2026-08-04 20:48:17 -07:00

ts.go

Walk the control buffer by hand instead of allocating a message list per frame

2026-08-04 20:48:17 -07:00

tx.go

Checksum the header and refuse sequence numbers the sender never sent

2026-08-04 20:41:16 -07:00

ui_test.go

Cover the loss window, rate window, error taxonomy and formatters with tests

2026-08-04 15:46:12 -07:00

ui.go

Reveal the build's commit hash in place of the reset label while a finger holds the top-right corner, and dev where go run left no stamp

2026-08-05 16:13:20 -07:00

docs/README.md

cabletest docs

Project knowledge that moves and versions with the repo.

goals.md — what cabletest is for and what it must output.
state.md — where things are now: committed vs stashed, hardware in flight, bringup plan, open items.
hardware.md — the box, interfaces, host tuning, how to run.
transports.md — how to reach module-PHY diagnostics, why the NIC choice governs it, and the register-level protocols.
modules.md — per-module diagnostics, register maps, cable-length physics, and the Marvell brick hazard.
measurement.md — how to measure correctly; performance results and dead ends.
open-questions.md — genuinely open problems worth deeper thinking before the X520 hardware arrives.

Vendor PDFs (BCM84891L transport + command handler, Marvell 88E151x datasheet) live alongside these.