Commit 61da6ac7 authored by Ong Boon Leong's avatar Ong Boon Leong Committed by Jakub Kicinski
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net: stmmac: perserve TX and RX coalesce value during XDP setup 



When XDP program is loaded, it is desirable that the previous TX and RX
coalesce values are not re-inited to its default value. This prevents
unnecessary re-configurig the coalesce values that were working fine
before.

Fixes: ac746c85 ("net: stmmac: enhance XDP ZC driver level switching performance")
Signed-off-by: default avatarOng Boon Leong <boon.leong.ong@intel.com>
Tested-by: default avatarKurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20211124114019.3949125-1-boon.leong.ong@intel.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 739752d6

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+3 −2
Original line number Diff line number Diff line
@@ -6519,6 +6519,9 @@ int stmmac_xdp_open(struct net_device *dev) 
		tx_q->tx_tail_addr = tx_q->dma_tx_phy;

		stmmac_set_tx_tail_ptr(priv, priv->ioaddr,

				       tx_q->tx_tail_addr, chan);



		hrtimer_init(&tx_q->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);

		tx_q->txtimer.function = stmmac_tx_timer;

	}



	/* Enable the MAC Rx/Tx */
@@ -6527,8 +6530,6 @@ int stmmac_xdp_open(struct net_device *dev) 
	/* Start Rx & Tx DMA Channels */

	stmmac_start_all_dma(priv);



	stmmac_init_coalesce(priv);



	ret = stmmac_request_irq(dev);

	if (ret)

		goto irq_error;