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/*
* ibm_emac_core.h
*
* Ethernet driver for the built in ethernet on the IBM 405 PowerPC
* processor.
*
* Armin Kuster akuster@mvista.com
* Sept, 2001
*
* Orignial driver
* Johnnie Peters
* jpeters@mvista.com
*
* Copyright 2000 MontaVista Softare Inc.
*
* 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.
*/
#ifndef _IBM_EMAC_CORE_H_
#define _IBM_EMAC_CORE_H_
#include <linux/netdevice.h>
#include <asm/ocp.h>
#include <asm/mmu.h> /* For phys_addr_t */
#include "ibm_emac.h"
#include "ibm_emac_phy.h"
#include "ibm_emac_rgmii.h"
#include "ibm_emac_zmii.h"
#include "ibm_emac_mal.h"
#include "ibm_emac_tah.h"
#ifndef CONFIG_IBM_EMAC_TXB
#define NUM_TX_BUFF 64
#define NUM_RX_BUFF 64
#else
#define NUM_TX_BUFF CONFIG_IBM_EMAC_TXB
#define NUM_RX_BUFF CONFIG_IBM_EMAC_RXB
#endif
/* This does 16 byte alignment, exactly what we need.
* The packet length includes FCS, but we don't want to
* include that when passing upstream as it messes up
* bridging applications.
*/
#ifndef CONFIG_IBM_EMAC_SKBRES
#define SKB_RES 2
#else
#define SKB_RES CONFIG_IBM_EMAC_SKBRES
#endif
/* Note about alignement. alloc_skb() returns a cache line
* aligned buffer. However, dev_alloc_skb() will add 16 more
* bytes and "reserve" them, so our buffer will actually end
* on a half cache line. What we do is to use directly
* alloc_skb, allocate 16 more bytes to match the total amount
* allocated by dev_alloc_skb(), but we don't reserve.
*/
#define MAX_NUM_BUF_DESC 255
#define DESC_BUF_SIZE 4080 /* max 4096-16 */
#define DESC_BUF_SIZE_REG (DESC_BUF_SIZE / 16)
/* Transmitter timeout. */
#define TX_TIMEOUT (2*HZ)
/* MDIO latency delay */
#define MDIO_DELAY 250
/* Power managment shift registers */
#define IBM_CPM_EMMII 0 /* Shift value for MII */
#define IBM_CPM_EMRX 1 /* Shift value for recv */
#define IBM_CPM_EMTX 2 /* Shift value for MAC */
#define IBM_CPM_EMAC(x) (((x)>>IBM_CPM_EMMII) | ((x)>>IBM_CPM_EMRX) | ((x)>>IBM_CPM_EMTX))
#define ENET_HEADER_SIZE 14
#define ENET_FCS_SIZE 4
#define ENET_DEF_MTU_SIZE 1500
#define ENET_DEF_BUF_SIZE (ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE)
#define EMAC_MIN_FRAME 64
#define EMAC_MAX_FRAME 9018
#define EMAC_MIN_MTU (EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
#define EMAC_MAX_MTU (EMAC_MAX_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
#ifdef CONFIG_IBM_EMAC_ERRMSG
void emac_serr_dump_0(struct net_device *dev);
void emac_serr_dump_1(struct net_device *dev);
void emac_err_dump(struct net_device *dev, int em0isr);
void emac_phy_dump(struct net_device *);
void emac_desc_dump(struct net_device *);
void emac_mac_dump(struct net_device *);
void emac_mal_dump(struct net_device *);
#else
#define emac_serr_dump_0(dev) do { } while (0)
#define emac_serr_dump_1(dev) do { } while (0)
#define emac_err_dump(dev,x) do { } while (0)
#define emac_phy_dump(dev) do { } while (0)
#define emac_desc_dump(dev) do { } while (0)
#define emac_mac_dump(dev) do { } while (0)
#define emac_mal_dump(dev) do { } while (0)
#endif
struct ocp_enet_private {
struct sk_buff *tx_skb[NUM_TX_BUFF];
struct sk_buff *rx_skb[NUM_RX_BUFF];
struct mal_descriptor *tx_desc;
struct mal_descriptor *rx_desc;
struct mal_descriptor *rx_dirty;
struct net_device_stats stats;
int tx_cnt;
int rx_slot;
int dirty_rx;
int tx_slot;
int ack_slot;
int rx_buffer_size;
struct mii_phy phy_mii;
int mii_phy_addr;
int want_autoneg;
int timer_ticks;
struct timer_list link_timer;
struct net_device *mdio_dev;
struct ocp_device *rgmii_dev;
int rgmii_input;
struct ocp_device *zmii_dev;
int zmii_input;
struct ibm_ocp_mal *mal;
int mal_tx_chan, mal_rx_chan;
struct mal_commac commac;
struct ocp_device *tah_dev;
int opened;
int going_away;
int wol_irq;
emac_t *emacp;
struct ocp_device *ocpdev;
struct net_device *ndev;
spinlock_t lock;
};
#endif /* _IBM_EMAC_CORE_H_ */
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