[PATCH v2 0/3] wifi: mt76: Fix TX performance degradation when IOMMU is enabled
Eason Lai
eason.lai at mediatek.com
Tue Jul 28 19:34:31 PDT 2026
This series adds a TX preallocated buffer mechanism to fix the TX performance degradation observed after enabling IOMMU.
Currently this feature is only enabled on MT8196, where it has been validated.
Changes in v2:
- Reword cover letter subject to add wifi: mt76: prefix
Eason Lai (3):
wifi: mt76: Separate skb and ptr pointers in mt76_txwi_cache
wifi: mt76: mt792x: Add TX page pool support for IOMMU-enabled systems
wifi: mt76: mt792x: Restrict TX page pool to MT8196 platform
drivers/net/wireless/mediatek/mt76/dma.c | 28 +-
drivers/net/wireless/mediatek/mt76/dma.h | 3 +
drivers/net/wireless/mediatek/mt76/mt76.h | 9 +-
.../wireless/mediatek/mt76/mt76_connac_mac.c | 6 +
.../net/wireless/mediatek/mt76/mt7925/pci.c | 2 +
drivers/net/wireless/mediatek/mt76/mt792x.h | 1 +
.../net/wireless/mediatek/mt76/mt792x_dma.c | 279 +++++++++++++++++-
7 files changed, 317 insertions(+), 11 deletions(-)
--
2.45.2
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