openwrt/target/linux/bcm27xx/patches-5.4/950-0211-bcmgenet-Better-coalescing-parameter-defaults.patch
Petr Štetiar e44e60b290 kernel: bump 5.4 to 5.4.48
Resolved merge conflict in the following patches:

 layerscape: 701-net-0213-dpaa2-eth-Add-CEETM-qdisc-support.patch
 ramips: 0013-owrt-hack-fix-mt7688-cache-issue.patch

Refreshed patches, removed upstreamed patch:

 bcm63xx: 020-v5.8-mtd-rawnand-brcmnand-fix-hamming-oob-layout.patch

Run tested: qemu-x86-64
Build tested: x86/64

Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-06-22 12:51:22 +02:00

44 lines
1.7 KiB
Diff

From b3344ca9ef887c4004c61be39f7d8d058a569d4d Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 27 Mar 2019 13:45:46 +0000
Subject: [PATCH] bcmgenet: Better coalescing parameter defaults
Set defaults for TX and RX packet coalescing to be equivalent to:
# ethtool -C eth0 tx-frames 10
# ethtool -C eth0 rx-usecs 50
This may be something we want to set via DT parameters in the
future.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2151,7 +2151,7 @@ static void bcmgenet_init_tx_ring(struct
bcmgenet_tdma_ring_writel(priv, index, 0, TDMA_PROD_INDEX);
bcmgenet_tdma_ring_writel(priv, index, 0, TDMA_CONS_INDEX);
- bcmgenet_tdma_ring_writel(priv, index, 1, DMA_MBUF_DONE_THRESH);
+ bcmgenet_tdma_ring_writel(priv, index, 10, DMA_MBUF_DONE_THRESH);
/* Disable rate control for now */
bcmgenet_tdma_ring_writel(priv, index, flow_period_val,
TDMA_FLOW_PERIOD);
@@ -3575,9 +3575,12 @@ static int bcmgenet_probe(struct platfor
netif_set_real_num_rx_queues(priv->dev, priv->hw_params->rx_queues + 1);
/* Set default coalescing parameters */
- for (i = 0; i < priv->hw_params->rx_queues; i++)
+ for (i = 0; i < priv->hw_params->rx_queues; i++) {
priv->rx_rings[i].rx_max_coalesced_frames = 1;
+ priv->rx_rings[i].rx_coalesce_usecs = 50;
+ }
priv->rx_rings[DESC_INDEX].rx_max_coalesced_frames = 1;
+ priv->rx_rings[DESC_INDEX].rx_coalesce_usecs = 50;
/* libphy will determine the link state */
netif_carrier_off(dev);