mbox series

[v10,00/12] hw/pci: SR-IOV related fixes and improvements

Message ID 20240627-reuse-v10-0-7ca0b8ed3d9f@daynix.com (mailing list archive)
Headers show
Series hw/pci: SR-IOV related fixes and improvements | expand

Message

Akihiko Odaki June 27, 2024, 6:07 a.m. UTC 
I submitted a RFC series[1] to add support for SR-IOV emulation to
virtio-net-pci. During the development of the series, I fixed some
trivial bugs and made improvements that I think are independently
useful. This series extracts those fixes and improvements from the RFC
series.

[1]: https://patchew.org/QEMU/20231210-sriov-v2-0-b959e8a6dfaf@daynix.com/

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v10:
- Added patch "hw/ppc/spapr_pci: Do not reject VFs created after a PF".
- Added patch "hw/ppc/spapr_pci: Do not create DT for disabled PCI device".
- Added patch "hw/pci: Convert rom_bar into OnOffAuto".
- Dropped patch "hw/pci: Determine if rombar is explicitly enabled".
- Dropped patch "hw/qdev: Remove opts member".
- Link to v9: https://lore.kernel.org/r/20240315-reuse-v9-0-67aa69af4d53@daynix.com

Changes in v9:
- Rebased.
- Restored '#include "qapi/error.h"' (Michael S. Tsirkin)
- Added patch "pcie_sriov: Ensure VF function number does not overflow"
  to fix abortion with wrong PF addr.
- Link to v8: https://lore.kernel.org/r/20240228-reuse-v8-0-282660281e60@daynix.com

Changes in v8:
- Clarified that "hw/pci: Replace -1 with UINT32_MAX for romsize" is
  not a bug fix. (Markus Armbruster)
- Squashed patch "vfio: Avoid inspecting option QDict for rombar" into
  "hw/pci: Determine if rombar is explicitly enabled".
  (Markus Armbruster)
- Noted the minor semantics change for patch "hw/pci: Determine if
  rombar is explicitly enabled". (Markus Armbruster)
- Link to v7: https://lore.kernel.org/r/20240224-reuse-v7-0-29c14bcb952e@daynix.com

Changes in v7:
- Replaced -1 with UINT32_MAX when expressing uint32_t.
  (Markus Armbruster)
- Added patch "hw/pci: Replace -1 with UINT32_MAX for romsize".
- Link to v6: https://lore.kernel.org/r/20240220-reuse-v6-0-2e42a28b0cf2@daynix.com

Changes in v6:
- Fixed migration.
- Added patch "pcie_sriov: Do not manually unrealize".
- Restored patch "pcie_sriov: Release VFs failed to realize" that was
  missed in v5.
- Link to v5: https://lore.kernel.org/r/20240218-reuse-v5-0-e4fc1c19b5a9@daynix.com

Changes in v5:
- Added patch "hw/pci: Always call pcie_sriov_pf_reset()".
- Added patch "pcie_sriov: Reset SR-IOV extended capability".
- Removed a reference to PCI_SRIOV_CTRL_VFE in hw/nvme.
  (Michael S. Tsirkin)
- Noted the impact on the guest of patch "pcie_sriov: Do not reset
  NumVFs after unregistering VFs". (Michael S. Tsirkin)
- Changed to use pcie_sriov_num_vfs().
- Restored pci_set_power() and changed it to call pci_set_enabled() only
  for PFs with an expalanation. (Michael S. Tsirkin)
- Reordered patches.
- Link to v4: https://lore.kernel.org/r/20240214-reuse-v4-0-89ad093a07f4@daynix.com

Changes in v4:
- Reverted the change to pci_rom_bar_explicitly_enabled().
  (Michael S. Tsirkin)
- Added patch "pcie_sriov: Do not reset NumVFs after unregistering VFs".
- Added patch "hw/nvme: Refer to dev->exp.sriov_pf.num_vfs".
- Link to v3: https://lore.kernel.org/r/20240212-reuse-v3-0-8017b689ce7f@daynix.com

Changes in v3:
- Extracted patch "hw/pci: Use -1 as a default value for rombar" from
  patch "hw/pci: Determine if rombar is explicitly enabled"
  (Philippe Mathieu-Daudé)
- Added an audit result of PCIDevice::rom_bar to the message of patch
  "hw/pci: Use -1 as a default value for rombar"
  (Philippe Mathieu-Daudé)
- Link to v2: https://lore.kernel.org/r/20240210-reuse-v2-0-24ba2a502692@daynix.com

Changes in v2:
- Reset after enabling a function so that NVMe VF state gets updated.
- Link to v1: https://lore.kernel.org/r/20240203-reuse-v1-0-5be8c5ce6338@daynix.com

---
Akihiko Odaki (12):
      hw/pci: Rename has_power to enabled
      hw/ppc/spapr_pci: Do not create DT for disabled PCI device
      hw/ppc/spapr_pci: Do not reject VFs created after a PF
      pcie_sriov: Do not manually unrealize
      pcie_sriov: Ensure VF function number does not overflow
      pcie_sriov: Reuse SR-IOV VF device instances
      pcie_sriov: Release VFs failed to realize
      pcie_sriov: Remove num_vfs from PCIESriovPF
      pcie_sriov: Register VFs after migration
      hw/pci: Replace -1 with UINT32_MAX for romsize
      hw/pci: Convert rom_bar into OnOffAuto
      hw/qdev: Remove opts member

 docs/igd-assign.txt               |   2 +-
 docs/pcie_sriov.txt               |   8 +-
 include/hw/pci/pci.h              |   2 +-
 include/hw/pci/pci_device.h       |  19 ++++-
 include/hw/pci/pcie_sriov.h       |   9 ++-
 include/hw/qdev-core.h            |   4 -
 hw/core/qdev.c                    |   1 -
 hw/net/igb.c                      |  13 +++-
 hw/nvme/ctrl.c                    |  24 ++++--
 hw/pci/pci.c                      |  33 +++++----
 hw/pci/pci_host.c                 |   4 +-
 hw/pci/pcie_sriov.c               | 149 +++++++++++++++++++++-----------------
 hw/ppc/spapr_pci.c                |   8 +-
 hw/vfio/pci-quirks.c              |   2 +-
 hw/vfio/pci.c                     |  11 ++-
 hw/xen/xen_pt_load_rom.c          |   6 +-
 system/qdev-monitor.c             |  12 +--
 tests/qtest/virtio-net-failover.c |  32 ++++----
 hw/pci/trace-events               |   2 +-
 19 files changed, 200 insertions(+), 141 deletions(-)
---
base-commit: 74abb45dac6979e7ff76172b7f0a24e869405184
change-id: 20240129-reuse-faae22b11934

Best regards,