6.14-stable review patch. If anyone has any objections, please let me know.
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From: Bo-Cun Chen bc-bocun.chen@mediatek.com
[ Upstream commit 1b66124135f5f8640bd540fadda4b20cdd23114b ]
The QDMA packet scheduler suffers from a performance issue. Fix this by picking up changes from MediaTek's SDK which change to use Token Bucket instead of Leaky Bucket and fix the SPEED_1000 configuration.
Fixes: 160d3a9b1929 ("net: ethernet: mtk_eth_soc: introduce MTK_NETSYS_V2 support") Signed-off-by: Bo-Cun Chen bc-bocun.chen@mediatek.com Signed-off-by: Daniel Golle daniel@makrotopia.org Link: https://patch.msgid.link/18040f60f9e2f5855036b75b28c4332a2d2ebdd8.1744764277... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 6a34ad6483a14..0cd1ecacfd29f 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -762,8 +762,8 @@ static void mtk_set_queue_speed(struct mtk_eth *eth, unsigned int idx, break; case SPEED_1000: val |= MTK_QTX_SCH_MAX_RATE_EN | - FIELD_PREP(MTK_QTX_SCH_MAX_RATE_MAN, 10) | - FIELD_PREP(MTK_QTX_SCH_MAX_RATE_EXP, 5) | + FIELD_PREP(MTK_QTX_SCH_MAX_RATE_MAN, 1) | + FIELD_PREP(MTK_QTX_SCH_MAX_RATE_EXP, 6) | FIELD_PREP(MTK_QTX_SCH_MAX_RATE_WEIGHT, 10); break; default: @@ -3274,7 +3274,7 @@ static int mtk_start_dma(struct mtk_eth *eth) if (mtk_is_netsys_v2_or_greater(eth)) val |= MTK_MUTLI_CNT | MTK_RESV_BUF | MTK_WCOMP_EN | MTK_DMAD_WR_WDONE | - MTK_CHK_DDONE_EN | MTK_LEAKY_BUCKET_EN; + MTK_CHK_DDONE_EN; else val |= MTK_RX_BT_32DWORDS; mtk_w32(eth, val, reg_map->qdma.glo_cfg);