 flamingcow
|
6a1a860548
|
Panel cleanup: chip padding up a step and a tighter chip line gap, corrected/SNR numbers neutral until amber or red, dB margin casing, compound elapsed units (1m39s) ending the minutes/metres m collision, noise chip shows presence only
|
2026-08-14 23:47:45 -07:00 |
|
|
flamingcow
|
9f2b074c4a
|
Mixed FS+Wiitek test pair: modules dispatched by EEPROM PN to a BCM or Go RollBall client (whitelist panics outside the wiitek proven-safe set), SNR now solely the wiitek's IEEE margins (BCM handler SNR dropped as unactionable), ECD-clears-AN-enable trap found and fixed (7.0 |= 0x1200 on every restart, explicit restart after each diag), mixed roles FS-slave/wiitek-auto-master, window re-arms at taken edge so the one CMD write per window sits far from the poll; X710 rejects the honest FS EEPROM so the noise pair runs Fibergaga+Wiitek
|
2026-08-14 23:35:19 -07:00 |
|
|
flamingcow
|
c0f3d0d61a
|
Wiitek vendor doc converted to English markdown: A2 Table 3 I2C-to-MDIO mailbox spec (official RollBall protocol confirmation) plus A2.250 part number and A2.120 link rate; embedded Visio register-map figure transcribed via libvisio
|
2026-08-14 08:51:34 -07:00 |
|
|
flamingcow
|
9301348850
|
Re-lock the mailbox window on lost phase instead of anchoring blind: one loop goroutine per module owns all transport, windows edge-locked from first touch, bringup verifies both modules before either AN restart; corrected charges and link-down reads print raw registers; harness -fuzz repeats lifecycles judging by exit status (30/30 module-clean)
|
2026-08-13 16:32:14 -07:00 |
|
|
flamingcow
|
fef6b52b74
|
Force master/slave roles at bringup (A master / B slave, IEEE 7.32): the AN role lottery plus per-training DSP convergence moves per-pair SNR up to ~3.6 dB, so sessions are pinned to identical conditions; launch power documented firmware-pinned (1.130), single-training SNR documented as a weak qualification number
|
2026-08-13 14:23:57 -07:00 |
|
|
flamingcow
|
a9f10d3055
|
Windowed module protocol: every op admitted inside a 3.4s window after the firmware's observed temp poll (cadence 3.5-4.2s measured, stuck-at-last-fetch stale mechanism proven and avoided), acquire/window with panic on dead heartbeat; noise column shows green on/off cycle phase, cable-missing state unchanged
|
2026-08-13 14:04:16 -07:00 |
|
|
flamingcow
|
d81594ffbf
|
Temp-warning disable proven not to silence the firmware's internal temp poll; corrected-error channel stays untrustworthy, register-docs ask is the remaining path (open-questions §5)
|
2026-08-13 11:03:47 -07:00 |
|
|
flamingcow
|
a3de66f746
|
Document the stale-read poisoning of the corrected-error channel: every burst decodes as a neighbor register, channel untrustworthy until stale reads are solved
|
2026-08-13 10:57:54 -07:00 |
|
|
flamingcow
|
f9140ff8d9
|
Bringup waits for nothing (no sleeps, no link waits, SETs fire cable-or-not with advert readback), errors held off the display while a measure is in flight, status poll is a deadline not a retry count, ghost signals (implausible SNR, undefined ECD verdict) panic outright; persistent stale-pipeline bridge fact documented
|
2026-08-13 10:49:01 -07:00 |
|
|
flamingcow
|
f2891886f3
|
Strip canaries, double-reads, retries and floors from the module protocol; every bcm method holds the per-module lock for its whole operation; facts stay in docs with internal-client contention marked unresolved
|
2026-08-13 10:32:24 -07:00 |
|
|
flamingcow
|
9d1f15045f
|
Shared-mailbox reality: module firmware is its own handler client (internal GET_CURRENT_TEMP ~3.5s, proven idle-watch), handler writes wedge the uC in busy windows; quiet-window writes, bare GETs double-read with CMD-readback tripwire, SNR floor, SETs verified externally; sentinel handshake and wire-probe jumbo check removed
|
2026-08-13 10:19:32 -07:00 |
|
|
flamingcow
|
e99c7121e7
|
Bridged MDIO reads verify freshness: a late async fetch serves the previous response as the wrong register (observed STATUS 0x0004 as 0.4dB SNR); unchanged-or-zero results re-read bare without re-arming until stable, first read always verified, identify retries against the constant PHY ID
|
2026-08-13 08:26:22 -07:00 |
|
|
flamingcow
|
bba1fa5e02
|
Jumbo in the size mix (MTU 9000 + module jumbo pinned), check-first module config trusting GET reads, cable diag async at startup through the reset path, MODULES table dissolved into SETTINGS/LINKS, per-driver NIC counter sets, comment cleanup
|
2026-08-13 08:04:26 -07:00 |
|
|
flamingcow
|
979dc7a772
|
BCM module diagnostics replace timestamp probes: bringup forces EEE off and runs ECD (re-run on every reset, re-baselining past its blip), 1 Hz SNR margin + corrected counters on panel and console; X520 bench divergences bypassed and tracked in open-questions
|
2026-08-13 07:10:39 -07:00 |
|
|
flamingcow
|
a00f2216b7
|
BCM bridge tolerates MCIA offset-write-then-read framing, proven on hardware via bcm_mcia_emu.py; MCIA question narrows to firmware acceptance of 0x56 and offset/framing details
|
2026-08-12 21:39:46 -07:00 |
|
|
flamingcow
|
4e5ba0bccf
|
Sharpen MCIA open question from mlx5_ifc.h register format; drop offline-rig and instrumentation-flow framing
|
2026-08-12 21:37:02 -07:00 |
|
|
flamingcow
|
65b1e18004
|
Dissolve resolved analyses into standalone device docs; open-questions.md keeps only the four live problems; discard NIC-timestamp length path (BCM ECD is proven) and Aquantia length trivia (30m part, oracle-only)
|
2026-08-12 21:30:16 -07:00 |
|
|
flamingcow
|
8b021d186b
|
Add full transcription of Marvell Alaska 88E151x public datasheet (168pp, 89 register tables) as CUX3610 family reference
|
2026-08-12 21:15:05 -07:00 |
|
|
flamingcow
|
1afe36a3c8
|
Remove WX1820: never had the hardware, evaluation was paper-only
|
2026-08-12 21:10:38 -07:00 |
|
|
flamingcow
|
b6e0fe8978
|
Add NIC datasheets: 82599 rev3.5, 710-series v4.1, E810 full datasheet, ConnectX-5 user manual + mlx5 PRM
|
2026-08-12 21:09:08 -07:00 |
|
|
flamingcow
|
9cb82ca3fa
|
Re-transcribe BCM84891L MDIO command and SFP register excerpts in full (all 45 commands, complete serial-ID table); scrub doc-provenance attribution and label all our interjections as field notes
|
2026-08-12 21:02:30 -07:00 |
|
|
flamingcow
|
5588ebec6f
|
Resolve X520 open questions on hardware: ETQF raw-L2 steering and single-hold compound I2C proven; 82599 has no all-packet exact-timestamp path so it is disqualified as product NIC (diagnostics-only), counter route rejected for a cable tester
|
2026-08-12 20:36:31 -07:00 |
|
|
flamingcow
|
910379e614
|
Correct Wiitek danger analysis: whole 3.0x8000+/31.0xF000+ window is lethal, not just *.??64 -- 88Q2220 recipe is IN the danger zone; record live baseline and no-safe-VCT-path finding
|
2026-08-12 19:50:15 -07:00 |
|
|
flamingcow
|
ad9bc9fae4
|
BCM ECD recovered from OpenBCM SDK and proven: 1E.4006 start, 1.A896 verdicts, 1.A897-9A per-pair meters -- meter-accurate on a 45m cable, healthy pairs report length
|
2026-08-12 19:37:54 -07:00 |
|
|
flamingcow
|
c57816345f
|
Restructure docs: per-device directories under modules/ and nics/ with co-located datasheets, state centralized in state.md, prose tightened into lists and tables
|
2026-08-12 19:23:02 -07:00 |
|
|
flamingcow
|
dc1fa6538d
|
Record FS probe sweep: AutogrEEEn found and forced off (defensive at bringup), identity pair map, FR count as metric, firmware DATA1 reliability caveat
|
2026-08-12 18:41:32 -07:00 |
|
|
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 |
|
|
flamingcow
|
4023d7ccf0
|
Add FS/BCM capability inventory; drop SNR/power-backoff length proxies -- length is PHY features or NIC timestamps only
|
2026-08-12 18:23:28 -07:00 |
|
|
flamingcow
|
01e00dfffe
|
BCM path proven on X520: fix multi-byte i2c read (SDA release), GET_SNR is 0x8030 invoked bare, IEEE SNR regs dead on BCM, module pause forced off
|
2026-08-12 17:50:14 -07:00 |
|
|
flamingcow
|
6f787c0873
|
Record X520 install: FS+Wiitek seated and linked, FS's honest EEPROM is what trips ixgbe qualification, uplink moved to enp88s0
|
2026-08-12 17:35:25 -07:00 |
|
|
flamingcow
|
5f4a8ceb57
|
Vendor AQR datasheet, correct timestamp model (hw rx stamps are a hard requirement), order ConnectX-5, map 82599 bucket-timestamp routes
|
2026-08-10 12:50:57 -07:00 |
|
|
flamingcow
|
73074040e0
|
Answer open questions from desk analysis: ETQF steering, E820 is post-FEC, compound I2C op, forced co-location
|
2026-08-10 11:51:39 -07:00 |
|
|
flamingcow
|
8c8e0c7d32
|
Add open-questions doc for pre-hardware deep-dive
|
2026-08-10 11:31:19 -07:00 |
|
|
flamingcow
|
44e010caa9
|
Note Wiitek ixgbe RollBall client and flag ixgbe RX-steering as open investigation
|
2026-08-10 11:29:05 -07:00 |
|
|
flamingcow
|
3f1bb03e52
|
Record X520 ixgbe raw-i2c patch and BCM client prep in state doc
|
2026-08-10 11:21:49 -07:00 |
|
|
flamingcow
|
6597a11c33
|
Add in-repo project docs: goals, state, hardware, module-PHY transports, module diagnostics, and measurement lessons
|
2026-08-10 10:34:26 -07:00 |
|
|
flamingcow
|
6d73221123
|
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 |
|
|
flamingcow
|
cd259556d4
|
Build i40e into the appliance kernel, whose forbidden list predated the noise pair that needs it
|
2026-08-05 21:46:15 -07:00 |
|
|
flamingcow
|
e7c73ca0a9
|
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 |
|
|
flamingcow
|
2fcab83756
|
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 |
|
|
flamingcow
|
88f4f7da80
|
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 |
|
|
flamingcow
|
ab60cc1cfc
|
Cap cpu idle exit latency for the life of the run, deep enough to keep C1 and shallow enough to block the rest
|
2026-08-04 22:50:22 -07:00 |
|
|
flamingcow
|
49eaa8a8a8
|
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 |
|
|
flamingcow
|
7b2601a02e
|
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 |
|
|
flamingcow
|
12cef6a89b
|
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 |
|
|
flamingcow
|
19b0f1d2ea
|
Refuse a filter location something else holds, and the driver's word on how many it wrote
|
2026-08-04 22:12:03 -07:00 |
|
|
flamingcow
|
f5d05d1fc5
|
Fail loudly on a drm read instead of leaving the panel frozen on its last frame
|
2026-08-04 22:11:58 -07:00 |
|
|
flamingcow
|
dd94f4cab5
|
Set the socket buffers through the force options alone instead of falling back to the capped ones
|
2026-08-04 22:01:10 -07:00 |
|
|
flamingcow
|
4c7062d600
|
Take the line rate as a constant so nothing has to be plugged in, and drop the config box
|
2026-08-04 21:58:52 -07:00 |
|
|
flamingcow
|
01d673dc83
|
Check the header version on arrival and say what the error window actually spans
|
2026-08-04 21:29:03 -07:00 |
|