[LSF/MM/BPF TOPIC] Implementation of Cross-controller reset/Time-based recovery (CQT) in the linux nvme driver
Randy Jennings
randyj at purestorage.com
Fri Feb 13 17:09:09 PST 2026
I'd like to discuss the state of patchsets related to implementing
Cross-controller Reset and Time-based recovery (CQT) in the linux nvme
driver for fabrics transports. I expect to present performance test
results that show the impact on read, read/write, write workloads with
packet drop and storage controller failover scenarios for different
levels of implementation (none, CQT only, CCR+CQT, filtering some
outstanding requests (probably just reads, maybe some admin
requests)).
Current patchset is:
https://lore.kernel.org/all/35ae10c9-808a-4882-86dc-311b23c821e5@grimberg.me/
Although, I expect it will be updated shortly.
Sincerely,
Randy Jennings
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