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19281e8668
When removing VFs, the driver takes a weird approach of assigning pf->num_alloc_vfs to 0 before iterating over the VFs using a temporary variable. This logic has been in the driver for a long time, and seems to have been carried forward from i40e. We want to refactor the way VFs are stored, and iterating over the data structure without the ice_for_each_vf interface impedes this work. The logic relies on implicitly using the num_alloc_vfs as a sort of "safe guard" for accessing VF data. While this sort of guard makes sense for Single Root IOV where all VFs are added at once, the data structures don't work for VFs which can be added and removed dynamically. We also have a separate state flag, ICE_VF_DEINIT_IN_PROGRESS which is a stronger protection against concurrent removal and access. Avoid the custom tmp iteration and replace it with the standard ice_for_each_vf iterator. Delay the assignment of num_alloc_vfs until after this loop finishes. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.