Differential D8546

hyperv/vmbus: Fix the multi-channel revoking on vmbus side.
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Authored by sepherosa_gmail.com on Nov 17 2016, 9:13 AM.

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howard0su_gmail.com
honzhan_microsoft.com
decui_microsoft.com
delphij
royger

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rS309083: hyperv/vmbus: Fix the multi-channel revoking on vmbus side.

Summary

Reference count the sub-channel when channel offer message is processed, so that immediate rescind message on the same channel will not race sub-channel open on driver side.
Drop the above reference when sub-channel is closed, this closely mimics the hypervisor's reaction when primary channel is closed on the VM side. No drivers use sub-channel after primary channel is closed.

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rS FreeBSD src repository - subversion

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sepherosa_gmail.com updated this revision to Diff 22277.Nov 17 2016, 9:13 AM

sepherosa_gmail.com retitled this revision from to hyperv/vmbus: Fix the multi-channel revoking on vmbus side..

sepherosa_gmail.com updated this object.

sepherosa_gmail.com edited the test plan for this revision. (Show Details)

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

Closed by commit rS309083: hyperv/vmbus: Fix the multi-channel revoking on vmbus side. (authored by sephe). · Explain WhyNov 24 2016, 6:01 AM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

dev/

hyperv/

vmbus/

52 lines

vmbus_chanvar.h

2 lines

Diff 22478

head/sys/dev/hyperv/vmbus/vmbus_chan.c

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head/sys/dev/hyperv/vmbus/vmbus_chanvar.h

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