drivers/net/bfin_mac.h

   1 /*
   2  * Blackfin On-Chip MAC Driver
   3  *
   4  * Copyright 2004-2007 Analog Devices Inc.
   5  *
   6  * Enter bugs at http://blackfin.uclinux.org/
   7  *
   8  * Licensed under the GPL-2 or later.
   9  */
  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>
  16 #include <linux/timer.h>
  17
  18 #define BFIN_MAC_CSUM_OFFLOAD
  19
  20 #define TX_RECLAIM_JIFFIES (HZ / 5)
  21
  22 struct dma_descriptor {
  23         struct dma_descriptor *next_dma_desc;
  24         unsigned long start_addr;
  25         unsigned short config;
  26         unsigned short x_count;
  27 };
  28
  29 struct status_area_rx {
  30 #if defined(BFIN_MAC_CSUM_OFFLOAD)
  31         unsigned short ip_hdr_csum;     /* ip header checksum */
  32         /* ip payload(udp or tcp or others) checksum */
  33         unsigned short ip_payload_csum;
  34 #endif
  35         unsigned long status_word;      /* the frame status word */
  36 };
  37
  38 struct status_area_tx {
  39         unsigned long status_word;      /* the frame status word */
  40 };
  41
  42 /* use two descriptors for a packet */
  43 struct net_dma_desc_rx {
  44         struct net_dma_desc_rx *next;
  45         struct sk_buff *skb;
  46         struct dma_descriptor desc_a;
  47         struct dma_descriptor desc_b;
  48         struct status_area_rx status;
  49 };
  50
  51 /* use two descriptors for a packet */
  52 struct net_dma_desc_tx {
  53         struct net_dma_desc_tx *next;
  54         struct sk_buff *skb;
  55         struct dma_descriptor desc_a;
  56         struct dma_descriptor desc_b;
  57         unsigned char packet[1560];
  58         struct status_area_tx status;
  59 };
  60
  61 struct bfin_mac_local {
  62         /*
  63          * these are things that the kernel wants me to keep, so users
  64          * can find out semi-useless statistics of how well the card is
  65          * performing
  66          */
  67         struct net_device_stats stats;
  68
  69         unsigned char Mac[6];   /* MAC address of the board */
  70         spinlock_t lock;
  71
  72         int wol;                /* Wake On Lan */
  73         int irq_wake_requested;
  74         struct timer_list tx_reclaim_timer;
  75         struct net_device *ndev;
  76
  77         /* MII and PHY stuffs */
  78         int old_link;          /* used by bf537_adjust_link */
  79         int old_speed;
  80         int old_duplex;
  81
  82         struct phy_device *phydev;
  83         struct mii_bus *mii_bus;
  84
  85 #if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
  86         struct cyclecounter cycles;
  87         struct timecounter clock;
  88         struct timecompare compare;
  89         struct hwtstamp_config stamp_cfg;
  90 #endif
  91 };
  92
  93 extern void bfin_get_ether_addr(char *addr);
  94
  95 #endif