[LU-13180] Reserve bit for RDMA-only memory RPC Created: 31/Jan/20  Updated: 28/Jun/21  Resolved: 28/Jun/20

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.14.0

Type: New Feature Priority: Minor
Reporter: Wang Shilong (Inactive) Assignee: Wang Shilong (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Related
Rank (Obsolete): 9223372036854775807

 Description   

This is reserved for RDMA-only memory integrated with Lustre.
The purpose of this bit is to:

1) disable short IO if memory is not directly addressable from CPU
2) prevent CPU memory pages and RDMA memory pages merging into one RPC.

 Comments   
Comment by Gerrit Updater [ 31/Jan/20 ]

Wang Shilong (wshilong@ddn.com) uploaded a new patch: https://review.whamcloud.com/37383
Subject: LU-13180 lustre: reserve bit for RDMA-only memory RPC
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: a11d2fbf19fd93b5fa0689db0f4a826702100cd9

Comment by Gerrit Updater [ 08/Feb/20 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/37383/
Subject: LU-13180 lustre: reserve bit for RDMA-only memory RPC
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 749b641e89db51dff01ae2f6ffe416b6d4d4f23a

Comment by Gerrit Updater [ 14/Feb/20 ]

Wang Shilong (wshilong@ddn.com) uploaded a new patch: https://review.whamcloud.com/37567
Subject: LU-13180 osc: disable ext merging for rdma only pages and non-rdma
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 3296d33ea7dfc2b699e59da1beb0494fbbedd926

Comment by Gerrit Updater [ 28/Jun/20 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/37567/
Subject: LU-13180 osc: disable ext merging for rdma only pages and non-rdma
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 9f6c9fa44d6e65e26b857a45a1c1ddcda5529ff9

Comment by Peter Jones [ 28/Jun/20 ]

Landed for 2.14

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