2023-03-29 09:38:30 +00:00
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From: Felix Fietkau <nbd@nbd.name>
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Date: Fri, 24 Mar 2023 14:56:58 +0100
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Subject: [PATCH] net: ethernet: mtk_eth_soc: fix tx throughput regression with
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direct 1G links
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Using the QDMA tx scheduler to throttle tx to line speed works fine for
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switch ports, but apparently caused a regression on non-switch ports.
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Based on a number of tests, it seems that this throttling can be safely
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dropped without re-introducing the issues on switch ports that the
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tx scheduling changes resolved.
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Link: https://lore.kernel.org/netdev/trinity-92c3826f-c2c8-40af-8339-bc6d0d3ffea4-1678213958520@3c-app-gmx-bs16/
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Fixes: f63959c7eec3 ("net: ethernet: mtk_eth_soc: implement multi-queue support for per-port queues")
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Reported-by: Frank Wunderlich <frank-w@public-files.de>
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Reported-by: Daniel Golle <daniel@makrotopia.org>
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Tested-by: Daniel Golle <daniel@makrotopia.org>
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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2024-03-29 14:45:50 +00:00
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@@ -675,8 +675,6 @@ static void mtk_mac_link_up(struct phyli
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2023-03-29 09:38:30 +00:00
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break;
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}
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- mtk_set_queue_speed(mac->hw, mac->id, speed);
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-
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/* Configure duplex */
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if (duplex == DUPLEX_FULL)
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mcr |= MAC_MCR_FORCE_DPX;
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