netdev - Re: [PATCH v4 5/5] net: rnpgbe: Add register

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Message-ID: <3D47BB8C932EF2F5+20250815022831.GA1137415@nic-Precision-5820-Tower>
Date: Fri, 15 Aug 2025 10:28:31 +0800
From: Yibo Dong <dong100@...se.com>
To: MD Danish Anwar <danishanwar@...com>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
	corbet@....net, gur.stavi@...wei.com, maddy@...ux.ibm.com,
	mpe@...erman.id.au, lee@...ger.us, gongfan1@...wei.com,
	lorenzo@...nel.org, geert+renesas@...der.be,
	Parthiban.Veerasooran@...rochip.com, lukas.bulwahn@...hat.com,
	alexanderduyck@...com, richardcochran@...il.com,
	netdev@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 5/5] net: rnpgbe: Add register_netdev

On Thu, Aug 14, 2025 at 05:44:51PM +0530, MD Danish Anwar wrote:
> On 14/08/25 1:08 pm, Dong Yibo wrote:
> > Initialize get mac from hw, register the netdev.
> > 
> > Signed-off-by: Dong Yibo <dong100@...se.com>
> > ---
> >  drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h    | 18 +++++
> >  .../net/ethernet/mucse/rnpgbe/rnpgbe_chip.c   | 73 ++++++++++++++++++
> >  drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h |  1 +
> >  .../net/ethernet/mucse/rnpgbe/rnpgbe_main.c   | 75 +++++++++++++++++++
> >  4 files changed, 167 insertions(+)
> > 
> > diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h
> > index 7ab1cbb432f6..7e51a8871b71 100644
> > --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h
> > +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h
> > @@ -6,6 +6,7 @@
> >  
> >  #include <linux/types.h>
> >  #include <linux/mutex.h>
> > +#include <linux/netdevice.h>
> >  
> >  extern const struct rnpgbe_info rnpgbe_n500_info;
> >  extern const struct rnpgbe_info rnpgbe_n210_info;
> > @@ -82,6 +83,15 @@ struct mucse_mbx_info {
> >  	u32 fw2pf_mbox_vec;
> >  };
> >  
> > +struct mucse_hw_operations {
> > +	int (*reset_hw)(struct mucse_hw *hw);
> > +	void (*driver_status)(struct mucse_hw *hw, bool enable, int mode);
> > +};
> > +
> > +enum {
> > +	mucse_driver_insmod,
> > +};
> > +
> >  struct mucse_hw {
> >  	u8 pfvfnum;
> >  	void __iomem *hw_addr;
> > @@ -91,12 +101,17 @@ struct mucse_hw {
> >  	u32 axi_mhz;
> >  	u32 bd_uid;
> >  	enum rnpgbe_hw_type hw_type;
> > +	const struct mucse_hw_operations *ops;
> >  	struct mucse_dma_info dma;
> >  	struct mucse_eth_info eth;
> >  	struct mucse_mac_info mac;
> >  	struct mucse_mbx_info mbx;
> > +	u32 flags;
> > +#define M_FLAGS_INIT_MAC_ADDRESS BIT(0)
> >  	u32 driver_version;
> >  	u16 usecstocount;
> > +	int lane;
> > +	u8 perm_addr[ETH_ALEN];
> >  };
> >  
> >  struct mucse {
> > @@ -117,4 +132,7 @@ struct rnpgbe_info {
> >  #define PCI_DEVICE_ID_N500_DUAL_PORT 0x8318
> >  #define PCI_DEVICE_ID_N210 0x8208
> >  #define PCI_DEVICE_ID_N210L 0x820a
> > +
> > +#define dma_wr32(dma, reg, val) writel((val), (dma)->dma_base_addr + (reg))
> > +#define dma_rd32(dma, reg) readl((dma)->dma_base_addr + (reg))
> 
> These macros could collide with other definitions. Consider prefixing
> them with the driver name (rnpgbe_dma_wr32).
> 
> I don't see these macros getting used anywhere in this series. They
> should be introduced when they are used.
> 

dma_wr32 is used in rnpgbe_reset_hw_ops (rnpgbe_chip.c). I rename it to
rnpgbe_dma_wr32.
dma_rd32 is not used, I will remove it.