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wifi: mt76: mt7915: add WDS support when WED is enabled

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The current WED only supports 256 wcid, whereas mt7986 can support up to
512 entries, so firmware provides a rule to get sta_info by DA when wcid
is set to 0x3ff by txd. Also, WED provides a register to overwrite txd
wcid, that is, wcid[9:8] can be overwritten by 0x3 and wcid[7:0] is set
to 0xff by host driver.

However, firmware is unable to get sta_info from DA as DA != RA for
4addr cases, so firmware and wifi host driver both use wcid (256 - 271)
and (768 ~ 783) for sync up to get correct sta_info.

Currently WDS+WED config is completely broken on MT7986/7981 devices if
without this patch.

Signed-off-by: Bo Jiao <[email protected]>
Signed-off-by: Sujuan Chen <[email protected]>
Signed-off-by: Shengyu Qu <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2025-10-20 16:09:22 +02:00
parent 2fe5bdbe7e
commit c63db0fcad
9 changed files with 122 additions and 33 deletions
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mt76.h
+3
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@@ -33,6 +33,9 @@
#define MT76_TOKEN_FREE_THR 64
#define MT76_WED_WDS_MIN 256
#define MT76_WED_WDS_MAX 272
#define MT_QFLAG_WED_RING GENMASK(1, 0)
#define MT_QFLAG_WED_TYPE GENMASK(4, 2)
#define MT_QFLAG_WED BIT(5)