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Message-ID: <BL0PR11MB29133BBDC826A8B79F59FEB1E7212@BL0PR11MB2913.namprd11.prod.outlook.com>
Date: Wed, 6 Mar 2024 23:44:58 +0000
From: <Woojung.Huh@...rochip.com>
To: <Parthiban.Veerasooran@...rochip.com>, <davem@...emloft.net>,
<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
<horms@...nel.org>, <saeedm@...dia.com>, <anthony.l.nguyen@...el.com>,
<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <andrew@...n.ch>,
<corbet@....net>, <linux-doc@...r.kernel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<devicetree@...r.kernel.org>, <Horatiu.Vultur@...rochip.com>,
<ruanjinjie@...wei.com>, <Steen.Hegelund@...rochip.com>,
<vladimir.oltean@....com>
CC: <UNGLinuxDriver@...rochip.com>, <Thorsten.Kummermehr@...rochip.com>,
<Pier.Beruto@...emi.com>, <Selvamani.Rajagopal@...emi.com>,
<Nicolas.Ferre@...rochip.com>, <benjamin.bigler@...nformulastudent.ch>
Subject: RE: [PATCH net-next v3 11/12] microchip: lan865x: add driver support
for Microchip's LAN865X MAC-PHY
Hi Parthiban,
> diff --git a/drivers/net/ethernet/microchip/lan865x/lan865x.c
> b/drivers/net/ethernet/microchip/lan865x/lan865x.c
...
> +static void lan865x_multicast_work_handler(struct work_struct *work)
> +{
> + struct lan865x_priv *priv = container_of(work, struct lan865x_priv,
> + multicast_work);
> + u32 regval = 0;
> +
> + if (priv->netdev->flags & IFF_PROMISC) {
> + /* Enabling promiscuous mode */
> + regval |= MAC_NET_CFG_PROMISCUOUS_MODE;
> + regval &= (~MAC_NET_CFG_MULTICAST_MODE);
> + regval &= (~MAC_NET_CFG_UNICAST_MODE);
> + } else if (priv->netdev->flags & IFF_ALLMULTI) {
> + /* Enabling all multicast mode */
> + regval &= (~MAC_NET_CFG_PROMISCUOUS_MODE);
> + regval |= MAC_NET_CFG_MULTICAST_MODE;
> + regval &= (~MAC_NET_CFG_UNICAST_MODE);
> + } else if (!netdev_mc_empty(priv->netdev)) {
> + lan865x_set_specific_multicast_addr(priv->netdev);
> + regval &= (~MAC_NET_CFG_PROMISCUOUS_MODE);
> + regval &= (~MAC_NET_CFG_MULTICAST_MODE);
> + regval |= MAC_NET_CFG_UNICAST_MODE;
> + } else {
> + /* enabling local mac address only */
> + if (oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_H_HASH,
> + regval)) {
Your intention to write 0 into LAN865X_REG_MAC_H_HASH?
If then, using 0 than regval makes more clear.
> + netdev_err(priv->netdev, "Failed to write reg_hashh");
> + return;
> + }
> + if (oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_L_HASH,
> + regval)) {
Same here.
> + netdev_err(priv->netdev, "Failed to write reg_hashl");
> + return;
> + }
> + }
> + if (oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_NET_CFG,
> regval))
> + netdev_err(priv->netdev,
> + "Failed to enable promiscuous/multicast/normal mode");
> +}
> +
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