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0e234f5c80
NVMe over Fabrics (TCP) target implementation sharing the same BlockVol engine, fencing, replication, and failover as the existing iSCSI target. New package: weed/storage/blockvol/nvme/ (11 files, 2,242 production LOC) - protocol.go: PDU types, opcodes, status codes, marshal/unmarshal - wire.go: TCP reader/writer with header bounds validation - controller.go: IC handshake, per-queue state, command dispatch, KATO - fabric.go: Connect (admin+IO), PropertyGet/Set, Disconnect - identify.go: Controller/Namespace/NS list/NS descriptors (Linux 5.15) - admin.go: SetFeatures, GetFeatures, GetLogPage (SMART/ANA), KeepAlive - io.go: Read (C2HData), Write (inline), Flush, WriteZeros/Trim - server.go: TCP listener, admin session registry, graceful shutdown - adapter.go: BlockVol-to-NVMe bridge, error mapping, ANA state Integration: NVMeConfig + CLI flags (-block.nvme.*), disabled by default. Key design: inline-data writes only (no R2T), MaxH2CDataLength=32KB, single ANA group coherent with BlockVol role, CNTLID session registry for cross-connection IO queues, HostNQN continuity enforcement. Tests: 65 dev + 44 QA adversarial = 109 total, all passing. Bugs fixed during review: IO queue cross-connection (A), header bounds validation (B), write payload size check (C), disconnect error (D), stream desync prevention (E), HostNQN enforcement (F), capsule-before-IC state guard (H), flowCtlOff SQHD timing (I). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>