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
  11 #define BFIN_MAC_CSUM_OFFLOAD
  12
  13 struct dma_descriptor {
  14         struct dma_descriptor *next_dma_desc;
  15         unsigned long start_addr;
  16         unsigned short config;
  17         unsigned short x_count;
  18 };
  19
  20 struct status_area_rx {
  21 #if defined(BFIN_MAC_CSUM_OFFLOAD)
  22         unsigned short ip_hdr_csum;     /* ip header checksum */
  23         /* ip payload(udp or tcp or others) checksum */
  24         unsigned short ip_payload_csum;
  25 #endif
  26         unsigned long status_word;      /* the frame status word */
  27 };
  28
  29 struct status_area_tx {
  30         unsigned long status_word;      /* the frame status word */
  31 };
  32
  33 /* use two descriptors for a packet */
  34 struct net_dma_desc_rx {
  35         struct net_dma_desc_rx *next;
  36         struct sk_buff *skb;
  37         struct dma_descriptor desc_a;
  38         struct dma_descriptor desc_b;
  39         struct status_area_rx status;
  40 };
  41
  42 /* use two descriptors for a packet */
  43 struct net_dma_desc_tx {
  44         struct net_dma_desc_tx *next;
  45         struct sk_buff *skb;
  46         struct dma_descriptor desc_a;
  47         struct dma_descriptor desc_b;
  48         unsigned char packet[1560];
  49         struct status_area_tx status;
  50 };
  51
  52 struct bfin_mac_local {
  53         /*
  54          * these are things that the kernel wants me to keep, so users
  55          * can find out semi-useless statistics of how well the card is
  56          * performing
  57          */
  58         struct net_device_stats stats;
  59
  60         unsigned char Mac[6];   /* MAC address of the board */
  61         spinlock_t lock;
  62
  63         /* MII and PHY stuffs */
  64         int old_link;          /* used by bf537_adjust_link */
  65         int old_speed;
  66         int old_duplex;
  67
  68         struct phy_device *phydev;
  69         struct mii_bus *mii_bus;
  70 };
  71
  72 extern void bfin_get_ether_addr(char *addr);