Re: [Qemu-devel] [PATCH v6 0/4] pcie: Add support for Single Root I/O Virtualization

[Knut Omang]

Michael,

I just realized that this now went out without 

Reviewed-by: Marcel Apfelbaum <address@hidden>

to patches 2-4, 

Sorry about that - can you add it for me?

Thanks,
Knut

On Thu, 2015-10-22 at 10:01 +0200, Knut Omang wrote:
> This patch set implements generic support for SR/IOV as an extension
> to the
> core PCIe functionality, similar to the way other capabilities such
> as AER
> is implemented.
> 
> There is no implementation of any device that provides
> SR/IOV support included, but I have implemented a test
> example which can be found together with this patch set here:
> 
>   git://github.com/knuto/qemu.git sriov_patches_v6
> 
> Testing with the example device was documented here:
> 
>   
> http://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg05110.html
> 
> Changes since v5:
>   - Fix reset logic that got broken in v5. Reset logic is now equal
> to
>     that of v4 except that two ambiguous initialization statements
>     (introduced during rebase) have been removed
>   - From private feedback, added observer functions for SR/IOV values
>     in pcie_sriov.h. To ease access to the vf number, the SR/IOV VF
> device
>     struct extension now caches this value.
> 
> Changes since v4:
>   - Mostly based on feeback in Marcel Apfelbaum's review:
>   - The patch with changes to pci_regs.h got eliminated by rebase
>   - Added some documentation as an additional patch
>   - Some trivial fixes moved to separate patch
>   - Modified code to use error and trace functions instead of printfs
> 
> Changes since v3:
>   - Reworked 'pci: Update pci_regs header' to merge kernel version
> improvements
>     with the current qemu version instead of copying from the kernel
> version.
> 
> Changes since v2:
>   - Rebased onto 090d0bfd
>   - Un-qdev'ified - avoids issues when resetting NUM_VFS
>   - Fixed handling of vf_offset/vf_stride
> 
> Changes since v1:
>   - Rebased on top of latest master, eliminating prereqs.
>   - Implement proper support for VF_STRIDE, VF_OFFSET and SUP_PGSIZE
>     Time better spent fixing it than explaining what the previous
>     limitations were.
>     - Added new first patch to fix pci bug related to this
>   - Split out patch to pci_default_config_write to a separate patch 2
>     to highlight bug fix.
>   - Refactored out logic into new source files
>     hw/pci/pcie_sriov.c include/hw/pci/pcie_sriov.h
>     similar to pcie_aer.c/h.
>   - Rename functions and introduce structs to better separate
>     pf and vf functionality.
>   - Replaced is_vf member with pci_is_vf() function abstraction
>   - Fix numerous syntax, whitespace and comment issues
>     according to Michael's review.
>   - Fix memory leaks.
>   - Removed igb example device - a rebased version available
>     on github instead.
> 
> Knut Omang (4):
>   pci: Make use of the devfn property when registering new devices
>   pcie: Add support for Single Root I/O Virtualization (SR/IOV)
>   pcie: Add some SR/IOV API documentation in docs/pcie_sriov.txt
>   pcie: A few minor fixes (type+code simplify)
> 
>  docs/pcie_sriov.txt         | 115 ++++++++++++++++++
>  hw/pci/Makefile.objs        |   2 +-
>  hw/pci/pci.c                |  97 ++++++++++++----
>  hw/pci/pcie.c               |   9 +-
>  hw/pci/pcie_sriov.c         | 277
> ++++++++++++++++++++++++++++++++++++++++++++
>  include/hw/pci/pci.h        |  11 +-
>  include/hw/pci/pcie.h       |   6 +
>  include/hw/pci/pcie_sriov.h |  67 +++++++++++
>  include/qemu/typedefs.h     |   2 +
>  trace-events                |   5 +
>  10 files changed, 561 insertions(+), 30 deletions(-)
>  create mode 100644 docs/pcie_sriov.txt
>  create mode 100644 hw/pci/pcie_sriov.c
>  create mode 100644 include/hw/pci/pcie_sriov.h
> 
> --
> 2.4.3