LXR linux/drivers/net/bfin

   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
  13struct 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
  20struct 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
  29struct status_area_tx {
  30        unsigned long status_word;      /* the frame status word */
  31};
  32
  33/* use two descriptors for a packet */
  34struct 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 */
  43struct 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
  52struct 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
  72extern void bfin_get_ether_addr(char *addr);
  73