[PATCH v4 0/6] features provisioning fixes and mlx5_vdpa support

[Si-Wei Liu]

This patchset is pre-requisite to export and provision device
config attributes and features for vdpa live migration, in a way
backward and forward compatibility can be retained. The follow up
work [1] will need to be built around the new feature provisioning
uAPI, with which it's easier to formalize migration compatibility
support at the driver level.

Thanks,
-Siwei

[1] [PATCH v3 0/4] vDPA: initial config export via "vdpa dev show"
https://lore.kernel.org/virtualization/1666392237-4042-1-git-send-email-si-wei.liu@xxxxxxxxxx/

---
v3 -> v4:
  - rewrite while loop to a for loop per mst's call
  - fix wording in the subject of patch
v2 -> v3:
  - fix incorrect reference of local variable in future patch
  - prohibit per-device bitmask macro from exposure in uapi header
  - add fixes tag
v1 -> v2:
  - include specific attribute info to error message 
  - move conditional feature presence in mlx5_vdpa config space
    to a separate patch
  - remove redundant check
---

Si-Wei Liu (6):
  vdpa: fix improper error message when adding vdpa dev
  vdpa: conditionally read STATUS in config space
  vdpa: validate provisioned device features against specified attribute
  vdpa: validate device feature provisioning against supported class
  vdpa/mlx5: make MTU/STATUS presence conditional on feature bits
  vdpa/mlx5: support device features provisioning

 drivers/vdpa/mlx5/net/mlx5_vnet.c |  71 ++++++++++++++++++++------
 drivers/vdpa/vdpa.c               | 103 ++++++++++++++++++++++++++++++++------
 2 files changed, 144 insertions(+), 30 deletions(-)

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1.8.3.1