bfin_mac.h
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/*
* 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/ptp_clock_kernel.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)
#define BFIN_MAC_RX_IRQ_DISABLED 1
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;
struct napi_struct napi;
unsigned long flags;
/* 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)
u32 addend;
unsigned int shift;
s32 max_ppb;
struct hwtstamp_config stamp_cfg;
struct ptp_clock_info caps;
struct ptp_clock *clock;
int phc_index;
spinlock_t phc_lock; /* protects time lo/hi registers */
#endif
};
int bfin_get_ether_addr(char *addr);
#endif