linux-imx

/*

 * rionet - Ethernet driver over RapidIO messaging services

 *

 * Copyright 2005 MontaVista Software, Inc.

 * Matt Porter <mporter@kernel.crashing.org>

 *

 * This program is free software; you can redistribute  it and/or modify it

 * under  the terms of  the GNU General  Public License as published by the

 * Free Software Foundation;  either version 2 of the  License, or (at your

 * option) any later version.

 */

​

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/dma-mapping.h>

#include <linux/delay.h>

#include <linux/rio.h>

#include <linux/rio_drv.h>

#include <linux/slab.h>

#include <linux/rio_ids.h>

​

#include <linux/netdevice.h>

#include <linux/etherdevice.h>

#include <linux/skbuff.h>

#include <linux/crc32.h>

#include <linux/ethtool.h>

#include <linux/reboot.h>

​

#define DRV_NAME        "rionet"

#define DRV_VERSION     "0.3"

#define DRV_AUTHOR      "Matt Porter <mporter@kernel.crashing.org>"

#define DRV_DESC        "Ethernet over RapidIO"

​

MODULE_AUTHOR(DRV_AUTHOR);

MODULE_DESCRIPTION(DRV_DESC);

MODULE_LICENSE("GPL");

​

#define RIONET_DEFAULT_MSGLEVEL \

            (NETIF_MSG_DRV          | \

             NETIF_MSG_LINK         | \

             NETIF_MSG_RX_ERR       | \

             NETIF_MSG_TX_ERR)

​

#define RIONET_DOORBELL_JOIN    0x1000

#define RIONET_DOORBELL_LEAVE   0x1001

​

#define RIONET_MAILBOX      0

​

#define RIONET_TX_RING_SIZE CONFIG_RIONET_TX_SIZE

#define RIONET_RX_RING_SIZE CONFIG_RIONET_RX_SIZE

#define RIONET_MAX_NETS     8

#define RIONET_MSG_SIZE         RIO_MAX_MSG_SIZE

#define RIONET_MAX_MTU          (RIONET_MSG_SIZE - ETH_HLEN)

​

struct rionet_private {

    struct rio_mport *mport;

    struct sk_buff *rx_skb[RIONET_RX_RING_SIZE];

    struct sk_buff *tx_skb[RIONET_TX_RING_SIZE];

    int rx_slot;

    int tx_slot;

    int tx_cnt;

    int ack_slot;

    spinlock_t lock;