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