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G.1: xHCI bulk-endpoint stall recovery (per F.14), built + verified

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Full BOT-spec stall recovery per FABRIC-3.md F.14: new STALL_ERROR handling,
Reset Endpoint + Set TR Dequeue Pointer commands, CLEAR_FEATURE(ENDPOINT_HALT),
escalating to Bulk-Only Mass Storage Reset, capped retries
(XHCI_BOT_STALL_MAX_RECOVERIES=2) mirroring bot_tur_retries, clean terminal
failure via xhci_stall_fail().

Purely additive recovery path off the non-success transfer-event branch; the
normal path is unchanged. Builds clean on amd64/aarch64/riscv64. QEMU amd64
boot regression passes: zero stalls, BOT attach (READ CAPACITY10 -> READ10 ->
home-blocks) completes, normal-path xHCI trace identical to baseline. Live
stall injection is not provable under qemu-xhci; deferred to v2.5.0 hardware.

FABRIC-3.md G.1 documented; ROADMAP release-versioning policy folded in.
This commit is contained in:
Robert Allan James
2026-08-29 00:58:59 -04:00
parent 5689c397fc
commit 49a3faa331
7 changed files with 730 additions and 5 deletions
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capsules/BLOCK_MAP.md
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# Capsule Block Manifest — Auto-generated
<!-- Generated by mkcapsule --manifest 2026-08-29T02:41:11Z -->
<!-- Generated by mkcapsule --manifest 2026-08-29T04:57:27Z -->
<!-- DO NOT EDIT — re-run mkcapsule --manifest to refresh. -->
<!-- Hand-written justifications and immutability notes live -->
<!-- in MANIFEST.md alongside this auto-generated index. -->