diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0083-sdk_dpaa-ceetm-lower-the-default-congestion-threshol.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0083-sdk_dpaa-ceetm-lower-the-default-congestion-threshol.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0083-sdk_dpaa-ceetm-lower-the-default-congestion-threshol.patch b/target/linux/layerscape/patches-5.4/701-net-0083-sdk_dpaa-ceetm-lower-the-default-congestion-threshol.patch new file mode 100644 index 0000000000..81881fa717 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0083-sdk_dpaa-ceetm-lower-the-default-congestion-threshol.patch @@ -0,0 +1,39 @@ +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. |