From: Eason Lai <eason.lai@mediatek.com>
To: <nbd@nbd.name>, <lorenzo@kernel.org>
Cc: <linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <kun.wu@mediatek.com>,
<deren.wu@mediatek.com>, <sean.wang@mediatek.com>,
<quan.zhou@mediatek.com>, <ryder.lee@mediatek.com>,
<leon.yen@mediatek.com>, <litien.chang@mediatek.com>,
<jb.tsai@mediatek.com>, <eason.lai@mediatek.com>
Subject: [PATCH v2 0/3] wifi: mt76: Fix TX performance degradation when IOMMU is enabled
Date: Wed, 29 Jul 2026 10:34:31 +0800 [thread overview]
Message-ID: <20260729023434.1105517-1-eason.lai@mediatek.com> (raw)
In-Reply-To: <20260709075558.1654164-1-eason.lai@mediatek.com>
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
next prev parent reply other threads:[~2026-07-29 2:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 7:55 [PATCH 0/3] Fix TX performance degradation when IOMMU is enabled Eason Lai
2026-07-09 7:55 ` [PATCH 1/3] wifi: mt76: Separate skb and page_pool_buf pointers in mt76_txwi_cache Eason Lai
2026-07-09 8:19 ` Lorenzo Bianconi
2026-07-13 1:57 ` Eason Lai (賴易聖)
2026-07-09 7:55 ` [PATCH 2/3] wifi: mt76: mt792x: Add TX page pool support for IOMMU-enabled systems Eason Lai
2026-07-09 8:27 ` Lorenzo Bianconi
2026-07-13 3:13 ` Eason Lai (賴易聖)
2026-07-09 7:55 ` [PATCH 3/3] wifi: mt76: mt792x: Restrict TX page pool to MT8196 platform Eason Lai
2026-07-29 2:34 ` Eason Lai [this message]
2026-07-29 2:34 ` [PATCH v2 1/3] wifi: mt76: Separate skb and ptr pointers in mt76_txwi_cache Eason Lai
2026-07-29 2:34 ` [PATCH v2 2/3] wifi: mt76: mt792x: Add TX page pool support for IOMMU-enabled systems Eason Lai
2026-07-29 2:34 ` [PATCH v2 3/3] wifi: mt76: mt792x: Restrict TX page pool to MT8196 platform Eason Lai
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