[linux.git] / drivers / net / bfin_mac.h

/*
 * Blackfin On-Chip MAC Driver
 *
 * Copyright 2004-2007 Analog Devices Inc.
 *
 * Enter bugs at http://blackfin.uclinux.org/
 *
 * Licensed under the GPL-2 or later.
 */
#ifndef _BFIN_MAC_H_
#define _BFIN_MAC_H_

#include <linux/net_tstamp.h>
#include <linux/clocksource.h>
#include <linux/timecompare.h>
#include <linux/timer.h>
#include <linux/etherdevice.h>
#include <linux/bfin_mac.h>

/*
 * Disable hardware checksum for bug #5600 if writeback cache is
 * enabled. Otherwize, corrupted RX packet will be sent up stack
 * without error mark.
 */
#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
#define BFIN_MAC_CSUM_OFFLOAD
#endif

#define TX_RECLAIM_JIFFIES (HZ / 5)

struct dma_descriptor {
	struct dma_descriptor *next_dma_desc;
	unsigned long start_addr;
	unsigned short config;
	unsigned short x_count;
};

struct status_area_rx {
#if defined(BFIN_MAC_CSUM_OFFLOAD)
	unsigned short ip_hdr_csum;	/* ip header checksum */
	/* ip payload(udp or tcp or others) checksum */
	unsigned short ip_payload_csum;
#endif
	unsigned long status_word;	/* the frame status word */
};

struct status_area_tx {
	unsigned long status_word;	/* the frame status word */
};

/* use two descriptors for a packet */
struct net_dma_desc_rx {
	struct net_dma_desc_rx *next;
	struct sk_buff *skb;
	struct dma_descriptor desc_a;
	struct dma_descriptor desc_b;
	struct status_area_rx status;
};

/* use two descriptors for a packet */
struct net_dma_desc_tx {
	struct net_dma_desc_tx *next;
	struct sk_buff *skb;
	struct dma_descriptor desc_a;
	struct dma_descriptor desc_b;
	unsigned char packet[1560];
	struct status_area_tx status;
};

struct bfin_mac_local {
	/*
	 * these are things that the kernel wants me to keep, so users
	 * can find out semi-useless statistics of how well the card is
	 * performing
	 */
	struct net_device_stats stats;

	spinlock_t lock;

	int wol;		/* Wake On Lan */
	int irq_wake_requested;
	struct timer_list tx_reclaim_timer;
	struct net_device *ndev;

	/* Data for EMAC_VLAN1 regs */
	u16 vlan1_mask, vlan2_mask;

	/* MII and PHY stuffs */
	int old_link;          /* used by bf537_adjust_link */
	int old_speed;
	int old_duplex;

	struct phy_device *phydev;
	struct mii_bus *mii_bus;

#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
	struct cyclecounter cycles;
	struct timecounter clock;
	struct timecompare compare;
	struct hwtstamp_config stamp_cfg;
#endif
};

extern void bfin_get_ether_addr(char *addr);

#endif
Commit	Line	Data
e190d6b1	1	/*
2fb9d6f5	2	* Blackfin On-Chip MAC Driver
e190d6b1	3	*
2fb9d6f5	4	* Copyright 2004-2007 Analog Devices Inc.
e190d6b1	5	*
2fb9d6f5	6	* Enter bugs at http://blackfin.uclinux.org/
e190d6b1	7	*
2fb9d6f5	8	* Licensed under the GPL-2 or later.
e190d6b1	9	*/
fe92afed BS	10	#ifndef _BFIN_MAC_H_
	11	#define _BFIN_MAC_H_
	12
	13	#include <linux/net_tstamp.h>
	14	#include <linux/clocksource.h>
	15	#include <linux/timecompare.h>
4fcc3d34	16	#include <linux/timer.h>
02460d08 SZ	17	#include <linux/etherdevice.h>
02460d08 SZ	18	#include <linux/bfin_mac.h>
e190d6b1	19
2d70a3d4 SZ	20	/*
	21	* Disable hardware checksum for bug #5600 if writeback cache is
	22	* enabled. Otherwize, corrupted RX packet will be sent up stack
	23	* without error mark.
	24	*/
	25	#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
e190d6b1	26	#define BFIN_MAC_CSUM_OFFLOAD
2d70a3d4	27	#endif
e190d6b1	28
4fcc3d34 SZ	29	#define TX_RECLAIM_JIFFIES (HZ / 5)
4fcc3d34 SZ	30
e190d6b1 BW	31	struct dma_descriptor {
	32	struct dma_descriptor *next_dma_desc;
	33	unsigned long start_addr;
	34	unsigned short config;
	35	unsigned short x_count;
	36	};
	37
	38	struct status_area_rx {
	39	#if defined(BFIN_MAC_CSUM_OFFLOAD)
	40	unsigned short ip_hdr_csum; /* ip header checksum */
	41	/* ip payload(udp or tcp or others) checksum */
	42	unsigned short ip_payload_csum;
	43	#endif
	44	unsigned long status_word; /* the frame status word */
	45	};
	46
	47	struct status_area_tx {
	48	unsigned long status_word; /* the frame status word */
	49	};
	50
	51	/* use two descriptors for a packet */
	52	struct net_dma_desc_rx {
	53	struct net_dma_desc_rx *next;
	54	struct sk_buff *skb;
	55	struct dma_descriptor desc_a;
	56	struct dma_descriptor desc_b;
	57	struct status_area_rx status;
	58	};
	59
	60	/* use two descriptors for a packet */
	61	struct net_dma_desc_tx {
	62	struct net_dma_desc_tx *next;
	63	struct sk_buff *skb;
	64	struct dma_descriptor desc_a;
	65	struct dma_descriptor desc_b;
	66	unsigned char packet[1560];
	67	struct status_area_tx status;
	68	};
	69
7ef0a7ee	70	struct bfin_mac_local {
e190d6b1 BW	71	/*
	72	* these are things that the kernel wants me to keep, so users
	73	* can find out semi-useless statistics of how well the card is
	74	* performing
	75	*/
4ae5a3ad	76	struct net_device_stats stats;
e190d6b1	77
e190d6b1	78	spinlock_t lock;
4ae5a3ad	79
53fd3f28 MH	80	int wol; /* Wake On Lan */
53fd3f28 MH	81	int irq_wake_requested;
4fcc3d34 SZ	82	struct timer_list tx_reclaim_timer;
4fcc3d34 SZ	83	struct net_device *ndev;
53fd3f28	84
c599bd6b MF	85	/* Data for EMAC_VLAN1 regs */
	86	u16 vlan1_mask, vlan2_mask;
	87
4ae5a3ad BW	88	/* MII and PHY stuffs */
	89	int old_link; /* used by bf537_adjust_link */
	90	int old_speed;
	91	int old_duplex;
	92
	93	struct phy_device *phydev;
298cf9be	94	struct mii_bus *mii_bus;
fe92afed BS	95
	96	#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
	97	struct cyclecounter cycles;
	98	struct timecounter clock;
	99	struct timecompare compare;
	100	struct hwtstamp_config stamp_cfg;
	101	#endif
e190d6b1 BW	102	};
e190d6b1 BW	103
9862cc52	104	extern void bfin_get_ether_addr(char *addr);
fe92afed BS	105
fe92afed BS	106	#endif