[Xen-devel] Xen SR-IOV support initiation

[Yu Zhao <yu.zhao@xxxxxxxxx>]

Greetings,

Following commits from the upstream kernel are backported to the Domain0
kernel as the first step of enabling Xen SR-IOV. Hopefully the SR-IOV core
patches for the upstream kernel would be applied on the PCI subsystem tree
in the next several days. Will backport them immediately they are in-tree
so Xen 3.4 release could have the SR-IOV support.

  PCI: define PCI resource names in an 'enum'
  PCI: remove unnecessary condition check in pci_restore_bars()
  PCI: add a new function to map BAR offsets
  PCI: rewrite PCI BAR reading code
  PCI: handle 64-bit resources better on 32-bit machines
  PCI: fix 64-vbit prefetchable memory resource BARs
  PCI: export __pci_read_base()
  PCI: support PCIe ARI capability
  PCI: fix ARI code to be compatible with mixed ARI/non-ARI systems
  PCI: enhance pci_ari_enabled()
  PCI: allow pci_alloc_child_bus() to handle a NULL bridge
  PCI: remove unnecessary arg of pci_update_resource()

  drivers/pci/pci-sysfs.c  |    4
  drivers/pci/pci.c        |  104 +++++++++++++------
  drivers/pci/pci.h        |   29 ++++-
  drivers/pci/probe.c      |  252 
++++++++++++++++++++++++++++-------------------
  drivers/pci/proc.c       |    7 -
  drivers/pci/quirks.c     |    2
  drivers/pci/setup-res.c  |   20 +--
  include/linux/pci.h      |   40 ++++---
  include/linux/pci_regs.h |   15 ++
  9 files changed, 310 insertions(+), 163 deletions(-)

---

The SR-IOV specification (requires membership) can be found at:
  * 
http://www.pcisig.com/members/downloads/specifications/iov/sr-iov1.0_11Sep07.pdf

The latest SR-IOV core patches for the upstream kernel are:
  PCI: initialize and release SR-IOV capability
  * http://patchwork.kernel.org/patch/11062/
  PCI: restore saved SR-IOV state
  * http://patchwork.kernel.org/patch/11063/
  PCI: reserve bus range for SR-IOV device
  * http://patchwork.kernel.org/patch/11064/
  PCI: centralize device setup code
  * http://patchwork.kernel.org/patch/11065/
  PCI: add SR-IOV API for Physical Function driver
  * http://patchwork.kernel.org/patch/11070/
  PCI: handle SR-IOV Virtual Function Migration
  * http://patchwork.kernel.org/patch/11066/
  PCI: document SR-IOV sysfs entries
  * http://patchwork.kernel.org/patch/11068/
  PCI: manual for SR-IOV user and driver developer
  * http://patchwork.kernel.org/patch/11069/

Intel 82576 Gigabit Ethernet Controller datasheet is available at:
  * http://download.intel.com/design/network/datashts/82576_Datasheet.pdf

The patches to enable the SR-IOV capability of Intel 82576 NIC are
available at (a.k.a Physical Function driver):
  * http://patchwork.kernel.org/patch/8063/
  * http://patchwork.kernel.org/patch/8064/
  * http://patchwork.kernel.org/patch/8065/
  * http://patchwork.kernel.org/patch/8066/

And the driver for Intel 82576 Virtual Function is available at:
  * http://patchwork.kernel.org/patch/11029/
  * http://patchwork.kernel.org/patch/11028/

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