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4f82a8d5c2
Currently, data path Rx descriptor placed in the CMEM memory respective
to the Rx offset. This Rx descriptor CMEM placement is not meeting the
requirements to support inter device MLO. In inter device MLO, multiple
devices participate in a group. The device specific Rx descriptor buffers
transmit to multiple device REO rings. To distinguish between device
specific Rx descriptor buffers, the CMEM setup configuration need to
choose a different placement based on the unique identifier (device index).
Below are the CMEM configuration placement representation:
Intra-Device MLO scenario:
Device 0 Device 1
+-------------+ +-------------+
| | | |
| Tx | | Tx |
| | | |
+-------------+ +-------------+
| | | |
| Rx | | Rx |
| | | |
+-------------+ +-------------+
Inter-Device MLO scenario:
Device 0 Device 1
+-------------+ +-------------+
| | | |
| Tx | | Tx |
| | | |
+-------------+ +-------------+
| | | |
| Rx | | Reserved |
| Device 0 | | |
| | | |
+-------------+ +-------------+
| | | Rx |
| Reserved | | Device 1 |
| | | |
+-------------+ +-------------+
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 HW2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240516000807.1704913-2-quic_periyasa@quicinc.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 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.