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2ee95ec17e
Complete the network device (netdev) registration flow for Mucse Gbe
Ethernet chips, including:
1. Hardware state initialization:
- Send powerup notification to firmware (via echo_fw_status)
- Sync with firmware
- Reset hardware
2. MAC address handling:
- Retrieve permanent MAC from firmware (via mucse_mbx_get_macaddr)
- Fallback to random valid MAC (eth_random_addr) if not valid mac
from Fw
Signed-off-by: Dong Yibo <dong100@mucse.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251101013849.120565-6-dong100@mucse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
144 lines
3.0 KiB
C
144 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2020 - 2025 Mucse Corporation. */
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#include <linux/pci.h>
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#include <linux/errno.h>
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#include <linux/etherdevice.h>
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#include "rnpgbe.h"
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#include "rnpgbe_hw.h"
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#include "rnpgbe_mbx.h"
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#include "rnpgbe_mbx_fw.h"
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/**
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* rnpgbe_get_permanent_mac - Get permanent mac
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* @hw: hw information structure
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* @perm_addr: pointer to store perm_addr
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*
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* rnpgbe_get_permanent_mac tries to get mac from hw
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*
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* Return: 0 on success, negative errno on failure
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**/
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int rnpgbe_get_permanent_mac(struct mucse_hw *hw, u8 *perm_addr)
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{
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struct device *dev = &hw->pdev->dev;
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int err;
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err = mucse_mbx_get_macaddr(hw, hw->pfvfnum, perm_addr, hw->port);
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if (err) {
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dev_err(dev, "Failed to get MAC from FW %d\n", err);
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return err;
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}
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if (!is_valid_ether_addr(perm_addr)) {
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dev_err(dev, "Failed to get valid MAC from FW\n");
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return -EINVAL;
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}
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return 0;
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}
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/**
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* rnpgbe_reset_hw - Do a hardware reset
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* @hw: hw information structure
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*
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* rnpgbe_reset_hw calls fw to do a hardware
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* reset, and cleans some regs to default.
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*
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* Return: 0 on success, negative errno on failure
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**/
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int rnpgbe_reset_hw(struct mucse_hw *hw)
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{
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mucse_hw_wr32(hw, RNPGBE_DMA_AXI_EN, 0);
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return mucse_mbx_reset_hw(hw);
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}
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/**
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* rnpgbe_send_notify - Echo fw status
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* @hw: hw information structure
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* @enable: true or false status
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* @mode: status mode
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*
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* Return: 0 on success, negative errno on failure
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**/
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int rnpgbe_send_notify(struct mucse_hw *hw,
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bool enable,
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int mode)
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{
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int err;
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/* Keep switch struct to support more modes in the future */
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switch (mode) {
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case mucse_fw_powerup:
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err = mucse_mbx_powerup(hw, enable);
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break;
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default:
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err = -EINVAL;
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}
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return err;
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}
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/**
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* rnpgbe_init_n500 - Setup n500 hw info
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* @hw: hw information structure
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*
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* rnpgbe_init_n500 initializes all private
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* structure for n500
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**/
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static void rnpgbe_init_n500(struct mucse_hw *hw)
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{
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struct mucse_mbx_info *mbx = &hw->mbx;
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mbx->fwpf_ctrl_base = MUCSE_N500_FWPF_CTRL_BASE;
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mbx->fwpf_shm_base = MUCSE_N500_FWPF_SHM_BASE;
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}
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/**
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* rnpgbe_init_n210 - Setup n210 hw info
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* @hw: hw information structure
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*
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* rnpgbe_init_n210 initializes all private
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* structure for n210
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**/
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static void rnpgbe_init_n210(struct mucse_hw *hw)
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{
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struct mucse_mbx_info *mbx = &hw->mbx;
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mbx->fwpf_ctrl_base = MUCSE_N210_FWPF_CTRL_BASE;
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mbx->fwpf_shm_base = MUCSE_N210_FWPF_SHM_BASE;
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}
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/**
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* rnpgbe_init_hw - Setup hw info according to board_type
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* @hw: hw information structure
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* @board_type: board type
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*
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* rnpgbe_init_hw initializes all hw data
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*
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* Return: 0 on success, -EINVAL on failure
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**/
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int rnpgbe_init_hw(struct mucse_hw *hw, int board_type)
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{
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struct mucse_mbx_info *mbx = &hw->mbx;
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hw->port = 0;
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mbx->pf2fw_mbx_ctrl = MUCSE_GBE_PFFW_MBX_CTRL_OFFSET;
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mbx->fwpf_mbx_mask = MUCSE_GBE_FWPF_MBX_MASK_OFFSET;
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switch (board_type) {
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case board_n500:
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rnpgbe_init_n500(hw);
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break;
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case board_n210:
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rnpgbe_init_n210(hw);
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break;
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default:
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return -EINVAL;
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}
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/* init_params with mbx base */
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mucse_init_mbx_params_pf(hw);
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return 0;
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}
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