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2e4592dc9b
The existing scheme sets aside a number of MSIX/NQs for the RoCE driver whether the RoCE driver is registered or not. This scheme is not flexible and limits the resources available for the L2 rings if RoCE is never used. Modify the scheme so that the RoCE MSIX/NQs can be used by the L2 driver if they are not used for RoCE. The MSIX/NQs are now represented by 3 fields. bp->ulp_num_msix_want contains the desired default value, edev->ulp_num_msix_vec contains the available value (but not necessarily in use), and ulp_tbl->msix_requested contains the actual value in use by RoCE. The L2 driver can dip into edev->ulp_num_msix_vec if necessary. We need to add rtnl_lock() back in bnxt_register_dev() and bnxt_unregister_dev() to synchronize the MSIX usage between L2 and RoCE. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240409215431.41424-6-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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 reStructuredText 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.