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The number of flags found in pf->flags has grown quite large, and there are a lot of different types of flags. Most of the flags are simply hardware features which are enabled on some firmware or some MAC types. Other flags are dynamic run-time flags which enable or disable certain features of the driver. Separate these two types of flags into pf->hw_features and pf->flags. The hw_features list will contain a set of features which are enabled at init time. This will not contain toggles or otherwise dynamically changing features. These flags should not need atomic protections, as they will be set once during init and then be essentially read only. Everything else will remain in the flags variable. These flags may be modified at any time during run time. A future patch may wish to convert these flags into set_bit/clear_bit/test_bit or similar approach to ensure atomic correctness. The I40E_FLAG_MFP_ENABLED flag may be a good fit for hw_features but currently is used by ethtool in the private flags settings, and thus has been left as part of flags. Additionally, I40E_FLAG_DCB_CAPABLE may be a good fit for the hw_features but this patch has not tried to untangle it yet. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.