[PATCH net-next] net: stmmac: stm32: Set TSO/TBS Tx queues default settings
From: Kurt Kanzenbach <kurt@linutronix.de>
Date: 2026-08-12 06:29:30
Also in:
linux-arm-kernel
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
TSO and TBS cannot coexist. Use the first queue with TSO and the rest for TBS. Tx queues with TBS can support etf qdisc hw offload. This is done similar to dwmac-imx and dwmac-intel. Tested on stm32mp257f-dk with AF_XDP and Tx Launch Time on queue 1. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> --- drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
index e1b260ed4790..8e15094eeab9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c@@ -557,6 +557,12 @@ static int stm32_dwmac_probe(struct platform_device *pdev) return ret; } + /* Default TX Q0 to use TSO and rest TXQ for TBS */ + if (dwmac->ops->is_mp2) { + for (int i = 1; i < plat_dat->tx_queues_to_use; i++) + plat_dat->tx_queues_cfg[i].tbs_en = 1; + } + plat_dat->flags |= STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP; plat_dat->bsp_priv = dwmac; plat_dat->suspend = stm32_dwmac_suspend;
--- base-commit: ac155a26750a595703e7dadff84735456d75a479 change-id: 20260811-stm32mp2_txtime-6bf9e01c968e Best regards, -- Kurt Kanzenbach [off-list ref]