The v4.8 based kernel has been uploaded to the Yakkety 16.10 archive.
I'm setting this to Fix Released.
** Information type changed from Proprietary to Public
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Fix Released
** Changed in: intel
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1591806
Title:
[Feature] Volume Management Device (VMD) Driver
Status in intel:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Bug description:
The Volume Management Device (VMD) is a secondary PCI Express host bridge
provided by the Intel CPU. Individual CPU-attached root ports, and all devices
behind them, may be configured by BIOS to appear underneath VMD instead of
underneath the primary root bus.
VMD is represented by a root bus integrated endpoint, which serves as a proxy
to the devices beneath it for access to configuration space, MMIO, DMA, and MSI.
The VMD driver implements Linux's PCI host bridge interface. When probed, the
driver dynamically creates a new PCI domain(segment). The PCI subsystem
enumerates the VMD PCI domain and loads drivers for devices and ports it finds.
A software validation team is testing the driver with VMD-enabled servers,
PCIe switches, and NVMe PCIe SSDs. They will also be testing error handling and
hotplug for SSDs behind VMD-owned root ports.
http://www.intel.com/cd/edesign/library/asmo-na/eng/546831.htm (CNDA)
http://www.intel.com/cd/edesign/library/asmo-na/eng/546833.htm (CNDA).
HW: Purley
Upstream statues:
v4.5 kernel implement this with:
185a383 x86/PCI: Add driver for Intel Volume Management Device (VMD)
28ef241 PCI/AER: Use 32 bit PCI domain numbers
d9c3d6f x86/PCI: Allow DMA ops specific to a PCI domain
64bce3e irqdomain: Export irq_domain_set_info() for module use
bf6f869 genirq/MSI: Relax msi_domain_alloc() to support parentless MSI
irqdomain
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