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40 lines
1.6 KiB
Diff
40 lines
1.6 KiB
Diff
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From c18056f0a2648457cdaf06450addd217091f4bea Mon Sep 17 00:00:00 2001
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From: Camelia Groza <camelia.groza@nxp.com>
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Date: Tue, 2 Oct 2018 16:49:28 +0300
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Subject: [PATCH] sdk_dpaa: ceetm: lower the default congestion thresholds
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The congestion thresholds need to be set in such a way that:
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a) the threshold is high enough so that frames aren't dropped
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unnecessarily
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b) the threshold is low enough so that the latency isn't too big
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The current thresholds are set too high. In forwarding scenarios, the
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latency is too large and frames are dropped on ingress due to a lack of
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buffers.
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Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
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---
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drivers/net/ethernet/freescale/sdk_dpaa/Kconfig | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
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+++ b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
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@@ -24,7 +24,7 @@ config FSL_DPAA_CEETM_CCS_THRESHOLD_1G
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hex "CEETM egress congestion threshold on 1G ports"
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depends on FSL_DPAA_CEETM
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range 0x1000 0x10000000
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- default "0x000a0000"
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+ default "0x00005000"
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help
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The size in bytes of the CEETM egress Class Congestion State threshold on 1G ports.
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The threshold needs to be configured keeping in mind the following factors:
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@@ -38,7 +38,7 @@ config FSL_DPAA_CEETM_CCS_THRESHOLD_10G
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hex "CEETM egress congestion threshold on 10G ports"
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depends on FSL_DPAA_CEETM
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range 0x1000 0x20000000
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- default "0x00640000"
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+ default "0x00032000"
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help
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The size in bytes of the CEETM egress Class Congestion State threshold on 10G ports.
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See FSL_DPAA_CEETM_CCS_THRESHOLD_1G for details.
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