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This commit patches the DDE Linux contrib code to remove IRQ coalescing from the R8169 driver that for reason not yet known leads to interrupts occurring irregularly. Issue #5356.
16 lines
592 B
Diff
16 lines
592 B
Diff
Disable IRQ coalescing as it seems to not work properly in our
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port because at some point triggering interrupts stops altogether.
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In this case the netperf tests produce around 0.1(!) MBit/s of
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throughput.
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--- src/linux/drivers/net/ethernet/realtek/r8169_main.c
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+++ src/linux/drivers/net/ethernet/realtek/r8169_main.c
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@@ -5374,7 +5374,7 @@
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dev->hw_features |= NETIF_F_RXALL;
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dev->hw_features |= NETIF_F_RXFCS;
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- netdev_sw_irq_coalesce_default_on(dev);
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+ // netdev_sw_irq_coalesce_default_on(dev);
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/* configure chip for default features */
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rtl8169_set_features(dev, dev->features);
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