[Feature] Accelerated CRC-T10DIF checksum for the SCSI layer
Bug #1188010 reported by
XiongZhang
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
intel |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Medium
|
Tim Gardner | ||
Saucy |
Fix Released
|
Medium
|
Tim Gardner |
Bug Description
The current CRC-T10DIF checksum is computed using a table lookup. By using PCLMULQDQ and SSE instructions available in Sandy
Bridge and later CPUs, the checksum computation speed can be sped up by 8x and more, improving the throughput for Solid State Drive and also new NVM express products.
Upstream schedule: kernel 3.12
Changed in linux (Ubuntu Saucy): | |
importance: | Undecided → Medium |
status: | New → Triaged |
Changed in linux (Ubuntu Saucy): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
status: | Triaged → In Progress |
status: | In Progress → Fix Committed |
information type: | Private → Public |
Changed in intel: | |
status: | New → Fix Released |
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Code merged into crypto-dev tree targeting the 3.11 kernel /lkml.org/ lkml/2013/ 4/17/509
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