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net: mediatek: do not set the QID field in the TX DMA descriptors
The QID field gets set to the mac id. This made the DMA linked list queue the traffic of each MAC on a different internal queue. However during long term testing we found that this will cause traffic stalls as the multi queue setup requires a more complete initialisation which is not part of the upstream driver yet. This patch removes the code setting the QID field, resulting in all traffic ending up in queue 0 which works without any special setup. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 1 additions and 2 deletions
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@ -603,8 +603,7 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev,
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WRITE_ONCE(txd->txd1, mapped_addr);
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WRITE_ONCE(txd->txd3, (TX_DMA_SWC |
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TX_DMA_PLEN0(frag_map_size) |
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last_frag * TX_DMA_LS0) |
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mac->id);
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last_frag * TX_DMA_LS0));
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WRITE_ONCE(txd->txd4, 0);
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tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC;
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