From: Andrew Lunn <andrew@lunn.ch>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: davem@davemloft.net, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, thomas.petazzoni@bootlin.com,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Luka Perkov <luka.perkov@sartura.hr>,
Robert Marko <robert.marko@sartura.hr>
Subject: Re: [PATCH net-next v5 2/5] net: ipqess: introduce the Qualcomm IPQESS driver
Date: Fri, 21 Oct 2022 16:39:40 +0200 [thread overview]
Message-ID: <Y1KvLP39QFyvbARB@lunn.ch> (raw)
In-Reply-To: <20221021124556.100445-3-maxime.chevallier@bootlin.com>
> +static int ipqess_axi_remove(struct platform_device *pdev)
> +{
> + const struct net_device *netdev = platform_get_drvdata(pdev);
> + struct ipqess *ess = netdev_priv(netdev);
> +
> + ipqess_hw_stop(ess);
> + unregister_netdev(ess->netdev);
Should the unregister come first? What happens if the network stack
tries to use the interface during/after ipqess_hw_stop()? It just
seems like it would be safer to first unregister the interface, and
then stop it?
> +struct ipqess_tx_desc {
> + __le16 len;
> + __le16 svlan_tag;
> + __le32 word1;
> + __le32 addr;
> + __le32 word3;
> +} __aligned(16) __packed;
> +
> +struct ipqess_rx_desc {
> + u16 rrd0;
> + u16 rrd1;
> + u16 rrd2;
> + u16 rrd3;
> + u16 rrd4;
> + u16 rrd5;
> + u16 rrd6;
> + u16 rrd7;
> +} __aligned(16) __packed;
The TX descriptor is little endian, but the RX descriptor is host
endian?
Andrew
next prev parent reply other threads:[~2022-10-21 14:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 12:45 [PATCH net-next v5 0/5] [PATCH net-next v4 0/5] net: ipqess: introduce Qualcomm IPQESS driver Maxime Chevallier
2022-10-21 12:45 ` [PATCH net-next v5 1/5] net: dt-bindings: Introduce the Qualcomm IPQESS Ethernet controller Maxime Chevallier
2022-10-21 13:33 ` Krzysztof Kozlowski
2022-10-21 14:30 ` Vladimir Oltean
2022-10-21 14:53 ` Rob Herring
2022-10-21 12:45 ` [PATCH net-next v5 2/5] net: ipqess: introduce the Qualcomm IPQESS driver Maxime Chevallier
2022-10-21 13:38 ` Krzysztof Kozlowski
2022-10-21 14:39 ` Andrew Lunn [this message]
2022-10-21 17:49 ` kernel test robot
2022-10-21 17:59 ` kernel test robot
2022-10-21 12:45 ` [PATCH net-next v5 3/5] net: dsa: add out-of-band tagging protocol Maxime Chevallier
2022-10-21 14:01 ` Vladimir Oltean
2022-10-21 14:43 ` Andrew Lunn
2022-10-21 14:46 ` Andrew Lunn
2022-10-21 19:51 ` kernel test robot
2022-10-21 12:45 ` [PATCH net-next v5 4/5] net: ipqess: Add out-of-band DSA tagging support Maxime Chevallier
2022-10-21 14:12 ` Vladimir Oltean
2022-10-21 12:45 ` [PATCH net-next v5 5/5] ARM: dts: qcom: ipq4019: Add description for the IPQESS Ethernet controller Maxime Chevallier
2022-10-21 14:20 ` Vladimir Oltean
2022-10-21 14:29 ` Krzysztof Kozlowski
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