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kernel: fix Mediatek queue size patch
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This got added in commit 15887235, cherry-picked into the 24.10 branch
as 642b5b61 and was partially lost in a manual patch refresh in
3a2a2c99.

The main branch still contains the full set of rx DMA size changes, so I
assume it was lost by accident.

With rx.dma_size=2K, my TP-Link Archer MR600v2 (MT7621) randomly reboots
due to OOM.

Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
This commit is contained in:
Stefan Dösinger 2025-08-14 13:40:09 +03:00 • committed by Felix Fietkau
parent faf168ffc9
commit 92d4f59709
1 changed files with 45 additions and 0 deletions
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45
target/linux/generic/pending-6.6/738-01-net-ethernet-mtk_eth_soc-reduce-rx-ring-size-for-older.patch
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@ -30,6 +30,24 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -5401,7 +5401,7 @@ static const struct mtk_soc_data mt2701_
.desc_size = sizeof(struct mtk_rx_dma),
.irq_done_mask = MTK_RX_DONE_INT,
.dma_l4_valid = RX_DMA_L4_VALID,
- .dma_size = MTK_DMA_SIZE(2K),
+ .dma_size = MTK_DMA_SIZE(512),
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
},
@@ -5429,7 +5429,7 @@ static const struct mtk_soc_data mt7621_
.desc_size = sizeof(struct mtk_rx_dma),
.irq_done_mask = MTK_RX_DONE_INT,
.dma_l4_valid = RX_DMA_L4_VALID,
- .dma_size = MTK_DMA_SIZE(2K),
+ .dma_size = MTK_DMA_SIZE(512),
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
},
@@ -5459,7 +5459,7 @@ static const struct mtk_soc_data mt7622_
.desc_size = sizeof(struct mtk_rx_dma),
.irq_done_mask = MTK_RX_DONE_INT,
@ -57,3 +75,30 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
},
@@ -5546,7 +5546,7 @@ static const struct mtk_soc_data mt7981_
.dma_l4_valid = RX_DMA_L4_VALID_V2,
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
- .dma_size = MTK_DMA_SIZE(2K),
+ .dma_size = MTK_DMA_SIZE(512),
},
};
@@ -5576,7 +5576,7 @@ static const struct mtk_soc_data mt7986_
.dma_l4_valid = RX_DMA_L4_VALID_V2,
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
- .dma_size = MTK_DMA_SIZE(2K),
+ .dma_size = MTK_DMA_SIZE(1K),
},
};
@@ -5629,7 +5629,7 @@ static const struct mtk_soc_data rt5350_
.dma_l4_valid = RX_DMA_L4_VALID_PDMA,
.dma_max_len = MTK_TX_DMA_BUF_LEN,
.dma_len_offset = 16,
- .dma_size = MTK_DMA_SIZE(2K),
+ .dma_size = MTK_DMA_SIZE(256),
},
};