On Thu, 2015-10-22 at 16:14 +0300, Michael S. Tsirkin wrote: > On Thu, Oct 22, 2015 at 10:01:31AM +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. > > We are in soft freeze now so I'd rather defer this until > 2.5 is out.
Ok, I kind of suspected that the 2.5 train had left, no problem.. > This should give you some time to come up with an actual > user for this API. > > If it helps, I can park these patches on a branch in my tree so > you don't need to keep reposting them. Yes, that would be great, Thanks, Knut > > 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
