On 12/08/25 3:09 pm, Dong Yibo wrote:
> Initialize get mac from hw, register the netdev.
>
> Signed-off-by: Dong Yibo <dong100@xxxxxxxxx>
> ---
> drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h | 22 ++++++
> .../net/ethernet/mucse/rnpgbe/rnpgbe_chip.c | 73 ++++++++++++++++++
> drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h | 1 +
> .../net/ethernet/mucse/rnpgbe/rnpgbe_main.c | 76 +++++++++++++++++++
> 4 files changed, 172 insertions(+)
>
> diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h
> index 6cb14b79cbfe..644b8c85c29d 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;
> @@ -86,6 +87,18 @@ struct mucse_mbx_info {
> u32 fw2pf_mbox_vec;
> };
>
> +struct mucse_hw_operations {
> + int (*init_hw)(struct mucse_hw *hw);
> + int (*reset_hw)(struct mucse_hw *hw);
> + void (*start_hw)(struct mucse_hw *hw);
> + void (*init_rx_addrs)(struct mucse_hw *hw);
> + void (*driver_status)(struct mucse_hw *hw, bool enable, int mode);
> +};
You define functions init_hw, start_hw, and init_rx_addrs in this
structure but they aren't implemented in this patch. Either implement
them or remove them if not needed yet.
> +
> +enum {
> + mucse_driver_insmod,
> +};
> +
> struct mucse_hw {
> void *back;
> u8 pfvfnum;
> @@ -96,12 +109,18 @@ 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 addr[ETH_ALEN];
> + u8 perm_addr[ETH_ALEN];
> };
>
> struct mucse {
> @@ -123,4 +142,7 @@ 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))
> #endif /* _RNPGBE_H */
> diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c
> index 16d0a76114b5..3eaa0257f3bb 100644
> --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c
> +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c
> @@ -2,10 +2,82 @@
> /* Copyright(c) 2020 - 2025 Mucse Corporation. */
>
> #include <linux/string.h>
> +#include <linux/etherdevice.h>
>
> #include "rnpgbe.h"
> #include "rnpgbe_hw.h"
> #include "rnpgbe_mbx.h"
> +#include "rnpgbe_mbx_fw.h"
> +
> +/**
> + * rnpgbe_get_permanent_mac - Get permanent mac
> + * @hw: hw information structure
> + * @mac_addr: pointer to store mac
> + *
> + * rnpgbe_get_permanent_mac tries to get mac from hw.
> + * It use eth_random_addr if failed.
> + **/
> +static void rnpgbe_get_permanent_mac(struct mucse_hw *hw,
> + u8 *mac_addr)
> +{
> + if (mucse_fw_get_macaddr(hw, hw->pfvfnum, mac_addr, hw->lane)) {
> + eth_random_addr(mac_addr);
> + } else {
> + if (!is_valid_ether_addr(mac_addr))
> + eth_random_addr(mac_addr);
> + }
> +
The function should log a warning when falling back to a random MAC
address, especially in the second case where the hardware returned an
invalid MAC.
> + hw->flags |= M_FLAGS_INIT_MAC_ADDRESS;
> +}
> +
> +/**
> + * rnpgbe_xmit_frame - Send a skb to driver
> + * @skb: skb structure to be sent
> + * @netdev: network interface device structure
> + *
> + * @return: NETDEV_TX_OK or NETDEV_TX_BUSY
> + **/
> +static netdev_tx_t rnpgbe_xmit_frame(struct sk_buff *skb,
> + struct net_device *netdev)
> +{
> + dev_kfree_skb_any(skb);
> + return NETDEV_TX_OK;
> +}
Extra indentation on these two lines. Also, the function just drops all
packets without any actual transmission. This should at least increment
the drop counter statistics.
> +
> +static const struct net_device_ops rnpgbe_netdev_ops = {
> + .ndo_open = rnpgbe_open,
> + .ndo_stop = rnpgbe_close,
> + .ndo_start_xmit = rnpgbe_xmit_frame,
> +};
--
Thanks and Regards,
Danish
