openwrt/target/linux/ipq40xx/patches-6.6/704-net-qualcomm-ipqess-enable-threaded-NAPI-by-default.patch

From 9fa4a57a65e270e4d579cace4de5c438f46c7d12 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Tue, 15 Aug 2023 14:38:44 +0200
Subject: [PATCH] net: qualcomm: ipqess: enable threaded NAPI by default

Threaded NAPI provides a nice performance boost, so lets enable it by
default.

We do however need to move the __napi_schedule() after HW IRQ has been
cleared in order to avoid concurency issues.

Signed-off-by: Robert Marko <robimarko@gmail.com>
---
 drivers/net/ethernet/qualcomm/ipqess/ipqess.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/qualcomm/ipqess/ipqess.c
+++ b/drivers/net/ethernet/qualcomm/ipqess/ipqess.c
@@ -530,9 +530,9 @@ static irqreturn_t ipqess_interrupt_tx(i
 	struct ipqess_tx_ring *tx_ring = (struct ipqess_tx_ring *)priv;
 
 	if (likely(napi_schedule_prep(&tx_ring->napi_tx))) {
-		__napi_schedule(&tx_ring->napi_tx);
 		ipqess_w32(tx_ring->ess, IPQESS_REG_TX_INT_MASK_Q(tx_ring->idx),
 			   0x0);
+		__napi_schedule(&tx_ring->napi_tx);
 	}
 
 	return IRQ_HANDLED;
@@ -543,9 +543,9 @@ static irqreturn_t ipqess_interrupt_rx(i
 	struct ipqess_rx_ring *rx_ring = (struct ipqess_rx_ring *)priv;
 
 	if (likely(napi_schedule_prep(&rx_ring->napi_rx))) {
-		__napi_schedule(&rx_ring->napi_rx);
 		ipqess_w32(rx_ring->ess, IPQESS_REG_RX_INT_MASK_Q(rx_ring->idx),
 			   0x0);
+		__napi_schedule(&rx_ring->napi_rx);
 	}
 
 	return IRQ_HANDLED;
@@ -1269,6 +1269,8 @@ static int ipqess_axi_probe(struct platf
 	if (err)
 		goto err_notifier_unregister;
 
+	dev_set_threaded(netdev, true);
+
 	return 0;
 
 err_notifier_unregister: