From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: "Théo Lebrun" <theo.lebrun@bootlin.com>
Cc: "Nicolai Buchwitz" <nb@tipi-net.de>,
netdev@vger.kernel.org, andrew+netdev@lunn.ch,
claudiu.beznea@tuxon.dev, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org,
nicolas.ferre@microchip.com, pabeni@redhat.com,
phil@raspberrypi.com,
"Grégory Clement" <gregory.clement@bootlin.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH 3/5] net: cadence: macb: implement EEE TX LPI support
Date: Wed, 25 Feb 2026 17:50:12 +0000 [thread overview]
Message-ID: <aZ82VFPu2FDmPpJ0@shell.armlinux.org.uk> (raw)
In-Reply-To: <DGO88446M74S.6C1O0I79IM0E@bootlin.com>
On Wed, Feb 25, 2026 at 06:42:08PM +0100, Théo Lebrun wrote:
> On Wed Feb 25, 2026 at 10:15 AM CET, Nicolai Buchwitz wrote:
> > @@ -2349,6 +2454,8 @@ static netdev_tx_t macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
> > netdev_tx_sent_queue(netdev_get_tx_queue(bp->dev, queue_index),
> > skb->len);
> >
> > + macb_tx_lpi_wake(bp);
>
> Should this be protected by a bp->eee_active condition? It could go
> in macb_tx_lpi_wake(). We avoid a spinlock acquire per xmit for most
> platforms. Probably negligeable though.
It will read the register, find the bit clear, and then return if
EEE is already disabled.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2026-02-25 17:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-25 9:15 [PATCH net-next v3 0/5] net: cadence: macb: add IEEE 802.3az EEE support Nicolai Buchwitz
2026-02-25 9:15 ` [PATCH 1/5] net: cadence: macb: add EEE register definitions and capability flag Nicolai Buchwitz
2026-02-25 17:26 ` Théo Lebrun
2026-02-26 1:49 ` Jakub Kicinski
2026-02-25 9:15 ` [PATCH 2/5] net: cadence: macb: add EEE LPI statistics counters Nicolai Buchwitz
2026-02-25 9:15 ` [PATCH 3/5] net: cadence: macb: implement EEE TX LPI support Nicolai Buchwitz
2026-02-25 17:32 ` Sai Krishna Gajula
2026-02-26 8:01 ` Nicolai Buchwitz
2026-02-25 17:42 ` Théo Lebrun
2026-02-25 17:50 ` Russell King (Oracle) [this message]
2026-02-26 9:52 ` Théo Lebrun
2026-02-26 10:49 ` Nicolai Buchwitz
2026-02-26 13:50 ` Théo Lebrun
2026-02-27 9:00 ` Nicolai Buchwitz
2026-02-27 14:39 ` Théo Lebrun
2026-02-25 9:15 ` [PATCH 4/5] net: cadence: macb: add ethtool EEE support Nicolai Buchwitz
2026-02-25 9:15 ` [PATCH 5/5] net: cadence: macb: enable EEE for Raspberry Pi RP1 Nicolai Buchwitz
2026-02-25 10:56 ` [PATCH net-next v3 0/5] net: cadence: macb: add IEEE 802.3az EEE support Nicolai Buchwitz
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