文件
android_kernel_samsung_sm86…/hal/wifi3.0
Rakesh Pillai 27f5c5e7b8 qcacmn: Fix mpdu re-stitch failure for fragmented wifi frames
When the length of a 802.11 frame is more than the
size of the posted receive buffers, it is split across
multiple buffers, which have to be accumulated before
submitting to network stack.

For all-but-last buffer which are used for the above
mentioned large 802.11 frame, the MSDU_CONTINUATION
flag will be set indicating that remaining data of the
same msdu has been DMA'ed to the next buffer.

The current implementation in monitor-1.0 works for
legacy chipsets, where MSDU_START tlv is available and
hence the aforementioned information was available in
all the buffers containing the large 802.11 frame.

For kiwi target, there is no MSDU_START tlv, and hence
a lot of information eg: mpdu_len_err, decap_format and
l2_hdr_offset are not available in the buffers where the
msdu_continuation flag is set. This leads to an attempt
of mpdu_restitch using incorrect data from tlv, and hence
the mpdu_restitch fails for such large 802.11 frame.

Fix this issue for kiwi target, by gathering all these
information which are available in the last buffer and
are used to process/accumulate the entire 802.11 frame.

Change-Id: I1c4fc9fd574c1c5fabc845407aa6f2d990c60906
CRs-Fixed: 3261494
2022-10-09 06:51:07 -07:00
..
2022-09-13 16:46:48 -07:00

The below qca6290 and qca8074 folder has c files defining functions
and structures to hold target specific definitions to handle differences between
chips with respect to hal.

Please ensure changes get applied to all platform specific files if the fixes
are generic and applicable to all the folders.

qca6290
	hal_6290_rx.c - rx related target specific function
	hal_6290_srng_table.c - holds hw srng table and hal hw reg offsets array
	hal_6290_tx.c - tx related target specific function
qca8074
	hal_8074_rx.c - rx related target specific function
	hal_8074_srng_table.c - holds hw srng table and hal hw reg offsets array
	hal_8074_tx.c - tx related target specific function