hyperv/storvsc: Enable TRIM support for Win2012R2
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Authored by honzhan_microsoft.com on Aug 3 2016, 5:05 AM.

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howard0su_gmail.com
decui_microsoft.com
hrs
delphij
sepherosa_gmail.com
royger

Commits

rS303737: hyperv/storvsc: Claim SPC-3 conformance, thus enable UNMAP support

Summary

On win8 and win2012 the inquiry response indicates the device is SPC-2, but in fact it is SPC-3.
This is a host issue and has fixed on win2016. FreeBSD VM has to manually set SCSI version to SPC-3 to support TRIM.

Submitted by: Hongjiang Zhang <honzhan microsoft com>

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Repository

rS FreeBSD src repository - subversion

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Event Timeline

honzhan_microsoft.com updated this revision to Diff 18989.Aug 3 2016, 5:05 AM

honzhan_microsoft.com retitled this revision from to hyperv/storvsc: Enable TRIM support for Win2012R2.

honzhan_microsoft.com updated this object.

Herald added subscribers: Contributor Reviews (src), imp. · View Herald TranscriptAug 3 2016, 5:05 AM

honzhan_microsoft.com updated this object.Aug 3 2016, 5:17 AM

honzhan_microsoft.com added reviewers: hrs, sepherosa_gmail.com, decui_microsoft.com, delphij, royger, howard0su_gmail.com.

Fix the comment. Rest looks fine.

sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
2162 ↗	(On Diff #18989)	UNMAP?

This revision is now accepted and ready to land.Aug 3 2016, 5:27 AM

honzhan_microsoft.com added inline comments.Aug 3 2016, 5:29 AM

sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
2162 ↗	(On Diff #18989)	yes, UNMAP is the formal command.

honzhan_microsoft.com updated this revision to Diff 18990.Aug 3 2016, 5:35 AM

honzhan_microsoft.com edited edge metadata.

honzhan_microsoft.com removed rS FreeBSD src repository - subversion as the repository for this revision.

This revision now requires review to proceed.Aug 3 2016, 5:35 AM

sepherosa_gmail.com accepted this revision.Aug 3 2016, 5:49 AM

sepherosa_gmail.com edited edge metadata.

This revision is now accepted and ready to land.Aug 3 2016, 5:49 AM

Closed by commit rS303737: hyperv/storvsc: Claim SPC-3 conformance, thus enable UNMAP support (authored by sephe). · Explain WhyAug 4 2016, 5:06 AM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

dev/

hyperv/

storvsc/

hv_storvsc_drv_freebsd.c

23 lines

Diff 19027

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head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c

hyperv/storvsc: Enable TRIM support for Win2012R2ClosedPublicActions