From: Joe Perches <joe@perches.com>
To: Leon Romanovsky <leon@leon.nu>, Bartosz Golaszewski <brgl@bgdev.pl>
Cc: devicetree@vger.kernel.org, Felix Fietkau <nbd@openwrt.org>,
Arnd Bergmann <arnd@arndb.de>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
linux-netdev <netdev@vger.kernel.org>,
Sean Wang <sean.wang@mediatek.com>,
linux-kernel@vger.kernel.org, Mark Lee <Mark-MC.Lee@mediatek.com>,
Fabien Parent <fparent@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
John Crispin <john@phrozen.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Jakub Kicinski <kuba@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 06/11] net: ethernet: mtk-eth-mac: new driver
Date: Wed, 06 May 2020 12:24:31 -0700 [thread overview]
Message-ID: <fd17302d94f6e2242d041268989e94a04df159de.camel@perches.com> (raw)
In-Reply-To: <CALq1K=Lu0hv9UCgxgrwCVoOe9L7A4sgBEM=RW2d9JkizHmdBPQ@mail.gmail.com>
On Wed, 2020-05-06 at 22:16 +0300, Leon Romanovsky wrote:
> On Tue, May 5, 2020 at 5:03 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > This adds the driver for the MediaTek Ethernet MAC used on the MT8* SoC
> > family. For now we only support full-duplex.
[]
> > diff --git a/drivers/net/ethernet/mediatek/mtk_eth_mac.c b/drivers/net/ethernet/mediatek/mtk_eth_mac.c
[]
> > +struct mtk_mac_priv {
> > + struct regmap *regs;
> > + struct regmap *pericfg;
> > +
> > + struct clk_bulk_data clks[MTK_MAC_NCLKS];
> > +
> > + void *ring_base;
> > + struct mtk_mac_ring_desc *descs_base;
> > + dma_addr_t dma_addr;
> > + struct mtk_mac_ring tx_ring;
> > + struct mtk_mac_ring rx_ring;
> > + struct work_struct tx_work;
> > +
> > + struct mii_bus *mii;
> > + struct napi_struct napi;
> > +
> > + struct device_node *phy_node;
> > + phy_interface_t phy_intf;
> > + struct phy_device *phydev;
> > + unsigned int link;
> > + int speed;
> > + int duplex;
> > +
> > + /* Protects against concurrent descriptor access. */
> > + spinlock_t lock;
> > + unsigned long lock_flags;
> > +
> > + struct rtnl_link_stats64 stats;
> > +};
> > +
> > +static struct net_device *mtk_mac_get_netdev(struct mtk_mac_priv *priv)
> > +{
> > + char *ptr = (char *)priv;
> > +
> > + return (struct net_device *)(ptr - ALIGN(sizeof(struct net_device),
> > + NETDEV_ALIGN));
> > +}
This code looks ugly/fragile.
Why not store the struct net_device * in struct mtk_mac_priv ?
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next prev parent reply other threads:[~2020-05-06 19:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 14:02 [PATCH 00/11] mediatek: add support for MediaTek Ethernet MAC Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 01/11] dt-bindings: add a binding document for MediaTek PERICFG controller Bartosz Golaszewski
2020-05-13 2:38 ` Rob Herring
2020-05-13 8:09 ` Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 02/11] dt-bindings: new: add yaml bindings for MediaTek Ethernet MAC Bartosz Golaszewski
2020-05-13 2:41 ` Rob Herring
2020-05-05 14:02 ` [PATCH 03/11] net: ethernet: mediatek: rename Kconfig prompt Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 04/11] net: ethernet: mediatek: remove unnecessary spaces from Makefile Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 05/11] net: core: provide devm_register_netdev() Bartosz Golaszewski
2020-05-05 17:31 ` Jakub Kicinski
2020-05-06 6:39 ` Bartosz Golaszewski
2020-05-06 17:12 ` Jakub Kicinski
2020-05-07 9:25 ` Bartosz Golaszewski
2020-05-07 16:53 ` Jakub Kicinski
2020-05-07 17:03 ` Bartosz Golaszewski
2020-05-07 22:56 ` Jakub Kicinski
2020-05-08 5:54 ` Heiner Kallweit
2020-05-08 18:39 ` Bartosz Golaszewski
2020-05-05 19:25 ` Edwin Peer
2020-05-06 6:46 ` Bartosz Golaszewski
2020-05-06 18:20 ` Edwin Peer
2020-05-05 14:02 ` [PATCH 06/11] net: ethernet: mtk-eth-mac: new driver Bartosz Golaszewski
2020-05-05 17:47 ` Andrew Lunn
2020-05-06 7:02 ` Bartosz Golaszewski
2020-05-05 18:04 ` Jakub Kicinski
2020-05-06 7:09 ` Bartosz Golaszewski
2020-05-06 17:19 ` Jakub Kicinski
2020-05-06 19:16 ` Leon Romanovsky
2020-05-06 19:23 ` Jakub Kicinski
2020-05-07 5:55 ` Leon Romanovsky
2020-05-07 22:50 ` Jakub Kicinski
2020-05-06 19:24 ` Joe Perches [this message]
2020-05-07 9:46 ` Mark-MC.Lee
2020-05-07 10:50 ` Bartosz Golaszewski
2020-05-07 13:16 ` Andrew Lunn
2020-05-07 17:01 ` Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 07/11] ARM64: dts: mediatek: add pericfg syscon to mt8516.dtsi Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 08/11] ARM64: dts: mediatek: add the ethernet node " Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 09/11] ARM64: dts: mediatek: add an alias for ethernet0 for pumpkin boards Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 10/11] ARM64: dts: mediatek: add ethernet pins " Bartosz Golaszewski
2020-05-05 14:02 ` [PATCH 11/11] ARM64: dts: mediatek: enable ethernet on " Bartosz Golaszewski
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