Commit 4543534c authored by Dong Yibo's avatar Dong Yibo Committed by Jakub Kicinski
Browse files

net: rnpgbe: Add basic mbx ops support 



Add fundamental mailbox (MBX) communication operations between PF
(Physical Function) and firmware for n500/n210 chips

Signed-off-by: default avatarDong Yibo <dong100@mucse.com>
Reviewed-by: default avatarVadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251101013849.120565-4-dong100@mucse.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 1b7f85f7

drivers/net/ethernet/mucse/rnpgbe/Makefile

+3 −1
Original line number Diff line number Diff line
@@ -5,4 +5,6 @@ 
#



obj-$(CONFIG_MGBE) += rnpgbe.o

rnpgbe-objs := rnpgbe_main.o
 
rnpgbe-objs := rnpgbe_main.o\

	       rnpgbe_chip.o\

	       rnpgbe_mbx.o

drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h

+17 −0
Original line number Diff line number Diff line
@@ -4,13 +4,28 @@ 
#ifndef _RNPGBE_H

#define _RNPGBE_H



#include <linux/types.h>



enum rnpgbe_boards {

	board_n500,

	board_n210

};



struct mucse_mbx_info {

	u32 timeout_us;

	u32 delay_us;

	u16 fw_req;

	u16 fw_ack;

	/* fw <--> pf mbx */

	u32 fwpf_shm_base;

	u32 pf2fw_mbx_ctrl;

	u32 fwpf_mbx_mask;

	u32 fwpf_ctrl_base;

};



struct mucse_hw {

	void __iomem *hw_addr;

	struct mucse_mbx_info mbx;

};



struct mucse {
@@ -19,6 +34,8 @@ struct mucse { 
	struct mucse_hw hw;

};



int rnpgbe_init_hw(struct mucse_hw *hw, int board_type);



/* Device IDs */

#define PCI_VENDOR_ID_MUCSE               0x8848

#define RNPGBE_DEVICE_ID_N500_QUAD_PORT   0x8308

drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c

0 → 100644
+70 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/* Copyright(c) 2020 - 2025 Mucse Corporation. */



#include <linux/errno.h>



#include "rnpgbe.h"

#include "rnpgbe_hw.h"

#include "rnpgbe_mbx.h"



/**

 * rnpgbe_init_n500 - Setup n500 hw info

 * @hw: hw information structure

 *

 * rnpgbe_init_n500 initializes all private

 * structure for n500

 **/

static void rnpgbe_init_n500(struct mucse_hw *hw)

{

	struct mucse_mbx_info *mbx = &hw->mbx;



	mbx->fwpf_ctrl_base = MUCSE_N500_FWPF_CTRL_BASE;

	mbx->fwpf_shm_base = MUCSE_N500_FWPF_SHM_BASE;

}



/**

 * rnpgbe_init_n210 - Setup n210 hw info

 * @hw: hw information structure

 *

 * rnpgbe_init_n210 initializes all private

 * structure for n210

 **/

static void rnpgbe_init_n210(struct mucse_hw *hw)

{

	struct mucse_mbx_info *mbx = &hw->mbx;



	mbx->fwpf_ctrl_base = MUCSE_N210_FWPF_CTRL_BASE;

	mbx->fwpf_shm_base = MUCSE_N210_FWPF_SHM_BASE;

}



/**

 * rnpgbe_init_hw - Setup hw info according to board_type

 * @hw: hw information structure

 * @board_type: board type

 *

 * rnpgbe_init_hw initializes all hw data

 *

 * Return: 0 on success, -EINVAL on failure

 **/

int rnpgbe_init_hw(struct mucse_hw *hw, int board_type)

{

	struct mucse_mbx_info *mbx = &hw->mbx;



	mbx->pf2fw_mbx_ctrl = MUCSE_GBE_PFFW_MBX_CTRL_OFFSET;

	mbx->fwpf_mbx_mask = MUCSE_GBE_FWPF_MBX_MASK_OFFSET;



	switch (board_type) {

	case board_n500:

		rnpgbe_init_n500(hw);

		break;

	case board_n210:

		rnpgbe_init_n210(hw);

		break;

	default:

		return -EINVAL;

	}

	/* init_params with mbx base */

	mucse_init_mbx_params_pf(hw);



	return 0;

}

drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h

+7 −0
Original line number Diff line number Diff line
@@ -4,5 +4,12 @@ 
#ifndef _RNPGBE_HW_H

#define _RNPGBE_HW_H



#define MUCSE_N500_FWPF_CTRL_BASE      0x28b00

#define MUCSE_N500_FWPF_SHM_BASE       0x2d000

#define MUCSE_GBE_PFFW_MBX_CTRL_OFFSET 0x5500

#define MUCSE_GBE_FWPF_MBX_MASK_OFFSET 0x5700

#define MUCSE_N210_FWPF_CTRL_BASE      0x29400

#define MUCSE_N210_FWPF_SHM_BASE       0x2d900



#define RNPGBE_MAX_QUEUES 8

#endif /* _RNPGBE_HW_H */

drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c

+5 −0
Original line number Diff line number Diff line
@@ -64,6 +64,11 @@ static int rnpgbe_add_adapter(struct pci_dev *pdev, 
	}



	hw->hw_addr = hw_addr;

	err = rnpgbe_init_hw(hw, board_type);

	if (err) {

		dev_err(&pdev->dev, "Init hw err %d\n", err);

		goto err_free_net;

	}



	return 0;