Thread (7 messages) flat view 7 messages, 2 authors, 2020-01-16

RE: [PATCH net v2 1/4] net: stmmac: Fix incorrect location to set real_num_rx|tx_queues

From: Jose Abreu <Jose.Abreu@synopsys.com>
Date: 2020-01-15 16:16:22
Also in: lkml, netdev

From: Ong Boon Leong <redacted>
Date: Jan/15/2020, 07:10:00 (UTC+00:00)
quoted hunk ↗ jump to hunk
From: Aashish Verma <redacted>

netif_set_real_num_tx_queues() & netif_set_real_num_rx_queues() should be
used to inform network stack about the real Tx & Rx queue (active) number
in both stmmac_open() and stmmac_resume(), therefore, we move the code
from stmmac_dvr_probe() to stmmac_hw_setup().

Fixes: c02b7a914551 ("net: stmmac: use netif_set_real_num_{rx,tx}_queues")
Signed-off-by: Aashish Verma <redacted>
Signed-off-by: Ong Boon Leong <redacted>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 80d59b775907..0780e00580a2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2624,6 +2624,10 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
 	if (priv->dma_cap.vlins)
 		stmmac_enable_vlan(priv, priv->hw, STMMAC_VLAN_INSERT);
 
+	/* Configure real RX and TX queues */
+	netif_set_real_num_rx_queues(dev, priv->plat->rx_queues_to_use);
+	netif_set_real_num_tx_queues(dev, priv->plat->tx_queues_to_use);
+
Nack. You need to hold rtnl lock when calling this and at suspend / resume 
you don't.

---
Thanks,
Jose Miguel Abreu

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