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misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver

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Adds a misc driver for Marvell CN10K DPI(DMA Engine) device's physical
function which initializes DPI DMA hardware's global configuration and
enables hardware mailbox channels between physical function (PF) and
it's virtual functions (VF). VF device drivers (User space drivers) use
this hw mailbox to communicate any required device configuration on it's
respective VF device. Accordingly, this DPI PF driver provisions the
VF device resources.

At the hardware level, the DPI physical function (PF) acts as a management
interface to setup the VF device resources, VF devices are only provisioned
to handle or control the actual DMA Engine's data transfer capabilities.

Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Reviewed-by: Srujana Challa <schalla@marvell.com>
Link: https://lore.kernel.org/r/20240706153009.3775333-1-vattunuru@marvell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vamsi Attunuru
2024-07-06 08:30:09 -07:00
committed by Greg Kroah-Hartman
parent e56af94b9b
commit 5f67eef6df
9 changed files with 796 additions and 0 deletions
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Documentation/userspace-api/ioctl/ioctl-number.rst
+1
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@@ -362,6 +362,7 @@ Code Seq# Include File Comments
0xB6 all linux/fpga-dfl.h
0xB7 all uapi/linux/remoteproc_cdev.h <mailto:linux-remoteproc@vger.kernel.org>
0xB7 all uapi/linux/nsfs.h <mailto:Andrei Vagin <avagin@openvz.org>>
0xB8 01-02 uapi/misc/mrvl_cn10k_dpi.h Marvell CN10K DPI driver
0xC0 00-0F linux/usb/iowarrior.h
0xCA 00-0F uapi/misc/cxl.h
0xCA 10-2F uapi/misc/ocxl.h