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8061c8b8f9
* kernel: crypto: add atmel i2c hw accelerator support Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org> * kernel: add led act/polarity select for rtl8221 phy Signed-off-by: Tianling Shen <cnsztl@gmail.com> * mediatek: add support for OpenEmbed SOM7981 Hardware specification: SoC: MediaTek MT7981B 2x A53 Flash: 256 MiB SPI-NAND RAM: 0.5/1 GB DDR4 Ethernet: 1x 1GbE, 1x 2.5GbE (RTL8221B) WiFi: MediaTek MT7976C USB: 1x M.2 B-Key GPIO: 26-Pin header UART: 6 GND, 8 TX, 10 RX (in Pin header) Button: Reset Installation: The board comes with a third-party custom OpenWrt image, you can upload sysupgrade image via LuCI directly WITHOUT keeping configurations. Or power on the board with pressing reset button for 5 second, then visit http://192.168.1.1 and upload -factory.bin firmware. Signed-off-by: Tianling Shen <cnsztl@gmail.com> --------- Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org> Signed-off-by: Tianling Shen <cnsztl@gmail.com>
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Wed, 29 Mar 2023 16:02:54 +0200
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Subject: [PATCH] net: ethernet: mtk_eth_soc: fix remaining throughput
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regression
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Based on further tests, it seems that the QDMA shaper is not able to
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perform shaping close to the MAC link rate without throughput loss.
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This cannot be compensated by increasing the shaping rate, so it seems
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to be an internal limit.
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Fix the remaining throughput regression by detecting that condition and
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limiting shaping to ports with lower link speed.
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This patch intentionally ignores link speed gain from TRGMII, because
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even on such links, shaping to 1000 Mbit/s incurs some throughput
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degradation.
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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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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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@@ -722,6 +722,7 @@ static void mtk_mac_link_up(struct phyli
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MAC_MCR_FORCE_RX_FC);
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/* Configure speed */
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+ mac->speed = speed;
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switch (speed) {
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case SPEED_2500:
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case SPEED_1000:
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@@ -3291,6 +3292,9 @@ found:
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if (dp->index >= MTK_QDMA_NUM_QUEUES)
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return NOTIFY_DONE;
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+ if (mac->speed > 0 && mac->speed <= s.base.speed)
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+ s.base.speed = 0;
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+
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mtk_set_queue_speed(eth, dp->index + 3, s.base.speed);
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return NOTIFY_DONE;
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