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| Filename | Latest commit message | Latest commit date |
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0e04e8e14b
Currently if the kernel has the intel_iommu=on parameter set, on some platforms removing the driver causes a system reboot. In initialization we associate the control queue interrupts with the pf->hw_oicr_idx and enable the interrupts by setting the CAUSE_ENA bit. The problem comes on teardown because we are not clearing the CAUSE_ENA bit for the control queues, but the vector at pf->hw_oicr_idx (miscellaneous interrupt vector) gets disabled. Fix this by clearing the CAUSE_ENA bit in the appropriate control queue registers on when freeing the miscellaneous interrupt vector. Also, move the call to ice_free_irq_msix_misc() to after ice_deinit_sw() in ice_remove() because ice_deinit_sw() makes an AQ call, but ice_free_irq_msix_misc() disables the miscellaneous vector and it's associated interrupts. Also, create two small helper functions to enable and disable the control queue interrupts respectively. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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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 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.