diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0042-sdk_dpaa-ceetm-add-independent-CEETM-congestion-thre.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0042-sdk_dpaa-ceetm-add-independent-CEETM-congestion-thre.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0042-sdk_dpaa-ceetm-add-independent-CEETM-congestion-thre.patch b/target/linux/layerscape/patches-5.4/701-net-0042-sdk_dpaa-ceetm-add-independent-CEETM-congestion-thre.patch new file mode 100644 index 0000000000..461280baf6 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0042-sdk_dpaa-ceetm-add-independent-CEETM-congestion-thre.patch @@ -0,0 +1,61 @@ +From aa54d82b06962bb620852ed20270f7783be68897 Mon Sep 17 00:00:00 2001 +From: Camelia Groza <camelia.groza@nxp.com> +Date: Fri, 24 Nov 2017 10:29:12 +0200 +Subject: [PATCH] sdk_dpaa: ceetm: add independent CEETM congestion thresholds + +Configure the CEETM egress congestion thresholds independently from the +default Ethernet driver's Work Queues. Allow the user to edit the +thresholds through menuconfig. + +Signed-off-by: Camelia Groza <camelia.groza@nxp.com> +--- + drivers/net/ethernet/freescale/sdk_dpaa/Kconfig | 23 ++++++++++++++++++++++ + .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c | 4 ++-- + 2 files changed, 25 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig ++++ b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig +@@ -20,6 +20,29 @@ config FSL_DPAA_CEETM + help + Enable QoS offloading support through the CEETM hardware block. + ++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" ++ 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: ++ - A threshold too large will buffer frames for a long time in the TX queues, ++ when a small shaping rate is configured. This will cause buffer pool depletion ++ or out of memory errors. This in turn will cause frame loss on RX; ++ - A threshold too small will cause unnecessary frame loss by entering ++ congestion too often. ++ ++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" ++ 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. ++ + config FSL_DPAA_OFFLINE_PORTS + bool "Offline Ports support" + depends on FSL_SDK_DPAA_ETH +--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c ++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c +@@ -185,9 +185,9 @@ static int ceetm_config_ccg(struct qm_ce + + /* Set the congestion state thresholds according to the link speed */ + if (dpa_priv->mac_dev->if_support & SUPPORTED_10000baseT_Full) +- cs_th = CONFIG_FSL_DPAA_CS_THRESHOLD_10G; ++ cs_th = CONFIG_FSL_DPAA_CEETM_CCS_THRESHOLD_10G; + else +- cs_th = CONFIG_FSL_DPAA_CS_THRESHOLD_1G; ++ cs_th = CONFIG_FSL_DPAA_CEETM_CCS_THRESHOLD_1G; + + qm_cgr_cs_thres_set64(&ccg_params.cs_thres_in, cs_th, 1); + qm_cgr_cs_thres_set64(&ccg_params.cs_thres_out, |