Bug 839434 (ENGINE_VIRT_PCI_Bridge)

Summary:	[RFE] PCI Bridge Support in engine
Product:	[oVirt] ovirt-engine	Reporter:	Karen Noel <knoel>
Component:	RFEs	Assignee:	Rob Young <royoung>
Status:	CLOSED DEFERRED	QA Contact:	Shai Revivo <srevivo>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	---	CC:	ailan, bugs, ehabkost, juzhang, knoel, laine, lersek, lpeer, marcel, michal.skrivanek, mtessun
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---	Flags:	ylavi: ovirt-future? rule-engine: planning_ack? rule-engine: devel_ack? rule-engine: testing_ack?
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:	818005	Environment:
Last Closed:	2020-04-01 14:45:07 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	737721, 737723, 818006, 827542
Bug Blocks:	818005, 843996, 844000, 844001

Description Karen Noel 2012-07-12 00:58:14 UTC

+++ This bug was initially created as a clone of Bug #818005 +++

https://home.corp.redhat.com/wiki/rhel-7-feature-page-pci-bridge

Description:

Bridge allows more than 32 PCI devices, each one individually hotpluggable.

PRD Requirements:

* 10.3.1.1.4: Deliver PCI bridge support for all supported devices 7.0

Key functional requirements: 

Ability to support up to ~900 devices, each one individually hotpluggable/unpluggable.

Constraints and limitations: Only one level of bridge hierarchy. No support for hot-plugging bridges. Might not support multifunction devices behind bridges.

Comment 2 Michal Skrivanek 2014-07-03 07:33:23 UTC

management of each device might become tricky with the various limitations.
If I read it correctly, you need to decide up front how many bridges are going to be there and then decide where to plug each device.
We have no notion/granularity like that ATM. We're looking into adding a device tree so you can at least see how are they laid out. Later on we can evolve this into actions (add device here).

if we want something before the device tree it's going to be tricky as we don't really have any good device identification before frost VM run.

Comment 3 Michal Skrivanek 2014-07-07 12:18:19 UTC

s/frost/first/ :-)

Comment 17 Michal Skrivanek 2020-03-18 15:44:16 UTC

This bug didn't get any attention for a while, we didn't have the capacity to make any progress. If you deeply care about it or want to work on it please assign/target accordingly

Comment 18 Michal Skrivanek 2020-03-18 15:47:21 UTC

This bug didn't get any attention for a while, we didn't have the capacity to make any progress. If you deeply care about it or want to work on it please assign/target accordingly

Comment 19 Michal Skrivanek 2020-04-01 14:45:07 UTC

ok, closing. Please reopen if still relevant/you want to work on it.

Comment 20 Michal Skrivanek 2020-04-01 14:49:49 UTC

ok, closing. Please reopen if still relevant/you want to work on it.