drivers/net/bfin_mac.h

   1 /*
   2  * File:        drivers/net/bfin_mac.c
   3  * Based on:
   4  * Maintainer:
   5  *              Bryan Wu <bryan.wu@analog.com>
   6  *
   7  * Original author:
   8  *              Luke Yang <luke.yang@analog.com>
   9  *
  10  * Created:
  11  * Description:
  12  *
  13  * Modified:
  14  *              Copyright 2004-2006 Analog Devices Inc.
  15  *
  16  * Bugs:        Enter bugs at http://blackfin.uclinux.org/
  17  *
  18  * This program is free software ;  you can redistribute it and/or modify
  19  * it under the terms of the GNU General Public License as published by
  20  * the Free Software Foundation ;  either version 2, or (at your option)
  21  * any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY ;  without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  * GNU General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program ;  see the file COPYING.
  30  * If not, write to the Free Software Foundation,
  31  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  32  */
  33
  34 #define BFIN_MAC_CSUM_OFFLOAD
  35
  36 struct dma_descriptor {
  37         struct dma_descriptor *next_dma_desc;
  38         unsigned long start_addr;
  39         unsigned short config;
  40         unsigned short x_count;
  41 };
  42
  43 struct status_area_rx {
  44 #if defined(BFIN_MAC_CSUM_OFFLOAD)
  45         unsigned short ip_hdr_csum;     /* ip header checksum */
  46         /* ip payload(udp or tcp or others) checksum */
  47         unsigned short ip_payload_csum;
  48 #endif
  49         unsigned long status_word;      /* the frame status word */
  50 };
  51
  52 struct status_area_tx {
  53         unsigned long status_word;      /* the frame status word */
  54 };
  55
  56 /* use two descriptors for a packet */
  57 struct net_dma_desc_rx {
  58         struct net_dma_desc_rx *next;
  59         struct sk_buff *skb;
  60         struct dma_descriptor desc_a;
  61         struct dma_descriptor desc_b;
  62         struct status_area_rx status;
  63 };
  64
  65 /* use two descriptors for a packet */
  66 struct net_dma_desc_tx {
  67         struct net_dma_desc_tx *next;
  68         struct sk_buff *skb;
  69         struct dma_descriptor desc_a;
  70         struct dma_descriptor desc_b;
  71         unsigned char packet[1560];
  72         struct status_area_tx status;
  73 };
  74
  75 struct bf537mac_local {
  76         /*
  77          * these are things that the kernel wants me to keep, so users
  78          * can find out semi-useless statistics of how well the card is
  79          * performing
  80          */
  81         struct net_device_stats stats;
  82
  83         unsigned char Mac[6];   /* MAC address of the board */
  84         spinlock_t lock;
  85
  86         /* MII and PHY stuffs */
  87         int old_link;          /* used by bf537_adjust_link */
  88         int old_speed;
  89         int old_duplex;
  90
  91         struct phy_device *phydev;
  92         struct mii_bus mii_bus;
  93 };
  94
  95 extern void get_bf537_ether_addr(char *addr);