mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 06:08:08 +00:00
40 lines
1.6 KiB
Diff
40 lines
1.6 KiB
Diff
|
From c18056f0a2648457cdaf06450addd217091f4bea Mon Sep 17 00:00:00 2001
|
||
|
|
From: Camelia Groza <camelia.groza@nxp.com>
|
||
|
|
Date: Tue, 2 Oct 2018 16:49:28 +0300
|
||
|
|
Subject: [PATCH] sdk_dpaa: ceetm: lower the default congestion thresholds
|
||
|
|
|
||
|
|
The congestion thresholds need to be set in such a way that:
|
||
|
|
a) the threshold is high enough so that frames aren't dropped
|
||
|
|
unnecessarily
|
||
|
|
b) the threshold is low enough so that the latency isn't too big
|
||
|
|
|
||
|
|
The current thresholds are set too high. In forwarding scenarios, the
|
||
|
|
latency is too large and frames are dropped on ingress due to a lack of
|
||
|
|
buffers.
|
||
|
|
|
||
|
|
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
|
||
|
|
---
|
||
|
|
drivers/net/ethernet/freescale/sdk_dpaa/Kconfig | 4 ++--
|
||
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
|
||
|
|
+++ b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
|
||
|
|
@@ -24,7 +24,7 @@ config FSL_DPAA_CEETM_CCS_THRESHOLD_1G
|
||
|
|
hex "CEETM egress congestion threshold on 1G ports"
|
||
|
|
depends on FSL_DPAA_CEETM
|
||
|
|
range 0x1000 0x10000000
|
||
|
|
- default "0x000a0000"
|
||
|
|
+ default "0x00005000"
|
||
|
|
help
|
||
|
|
The size in bytes of the CEETM egress Class Congestion State threshold on 1G ports.
|
||
|
|
The threshold needs to be configured keeping in mind the following factors:
|
||
|
|
@@ -38,7 +38,7 @@ config FSL_DPAA_CEETM_CCS_THRESHOLD_10G
|
||
|
|
hex "CEETM egress congestion threshold on 10G ports"
|
||
|
|
depends on FSL_DPAA_CEETM
|
||
|
|
range 0x1000 0x20000000
|
||
|
|
- default "0x00640000"
|
||
|
|
+ default "0x00032000"
|
||
|
|
help
|
||
|
|
The size in bytes of the CEETM egress Class Congestion State threshold on 10G ports.
|
||
|
|
See FSL_DPAA_CEETM_CCS_THRESHOLD_1G for details.
|