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[ Upstream commit294080eacf] When upper inbound and outbound queues 32-63 are enabled, we see upper vectors 32-63 in interrupt service routine. We need corresponding registers to handle masking and unmasking of these upper interrupts. To achieve this, we use registers MSGU_ODMR_U(0x34) to mask and MSGU_ODMR_CLR_U(0x3C) to unmask the interrupts. In these registers bit 0-31 represents interrupt vectors 32-63. Link: https://lore.kernel.org/r/20220411064603.668448-2-Ajish.Koshy@microchip.com Fixes:05c6c029a4("scsi: pm80xx: Increase number of supported queues") Reviewed-by: John Garry <john.garry@huawei.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Ajish Koshy <Ajish.Koshy@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.