1 /* 2 * ibm_ocp_enet.h 3 * 4 * Ethernet driver for the built in ethernet on the IBM 405 PowerPC 5 * processor. 6 * 7 * Armin Kuster akuster@mvista.com 8 * Sept, 2001 9 * 10 * Orignial driver 11 * Johnnie Peters 12 * jpeters@mvista.com 13 * 14 * Copyright 2000 MontaVista Softare Inc. 15 * 16 * This program is free software; you can redistribute it and/or modify it 17 * under the terms of the GNU General Public License as published by the 18 * Free Software Foundation; either version 2 of the License, or (at your 19 * option) any later version. 20 * 21 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 24 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 27 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 28 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * You should have received a copy of the GNU General Public License along 33 * with this program; if not, write to the Free Software Foundation, Inc., 34 * 675 Mass Ave, Cambridge, MA 02139, USA. 35 * 36 * Version: 1.0: Name change - armin 37 * Version: 1.0: Added extern prototypes for new mal func. - David M. 38 * : removed #ifdef for irqs.i - Armin 39 * : added irq_resourse to private data struct. 40 * 41 * Version: 1.1: Added new min/max value for phy & removed unused phy_id_done - * - andrew May 42 * Version: 1.2: added all emac extern protos here - Armin 43 * 44 * Version: 1.3: Using CONFIG_IBM_OCP_ZMII instead of ZMII_NUMS > 0 45 * 46 * Version: 1.3: Name change *_driver to *_dev 47 * Version: 1.4: removed irq_resource & BL_* defines 48 * 49 */ 50 51 #ifndef _IBM_OCP_ENET_H_ 52 #define _IBM_OCP_ENET_H_ 53 54 #include <linux/netdevice.h> 55 #include <asm/ocp.h> 56 #include <asm/mmu.h> /* For phys_addr_t */ 57 58 #include "ibm_emac.h" 59 #include "ibm_ocp_phy.h" 60 #include "ibm_ocp_zmii.h" 61 #include "ibm_ocp_mal.h" 62 63 #ifndef CONFIG_IBM_OCP_ENET_TX_BUFF 64 #define NUM_TX_BUFF 64 65 #define NUM_RX_BUFF 64 66 #else 67 #define NUM_TX_BUFF CONFIG_IBM_OCP_ENET_TX_BUFF 68 #define NUM_RX_BUFF CONFIG_IBM_OCP_ENET_RX_BUFF 69 #endif 70 71 /* This does 16 byte alignment, exactly what we need. 72 * The packet length includes FCS, but we don't want to 73 * include that when passing upstream as it messes up 74 * bridging applications. 75 */ 76 #ifndef CONFIG_IBM_OCP_ENET_SKB_RES 77 #define SKB_RES 2 78 #else 79 #define SKB_RES CONFIG_IBM_OCP_ENET_SKB_RES 80 #endif 81 82 /* Note about alignement. alloc_skb() returns a cache line 83 * aligned buffer. However, dev_alloc_skb() will add 16 more 84 * bytes and "reserve" them, so our buffer will actually end 85 * on a half cache line. What we do is to use directly 86 * alloc_skb, allocate 16 more bytes to match the total amount 87 * allocated by dev_alloc_skb(), but we don't reserve. 88 */ 89 #define MAX_NUM_BUF_DESC 255 90 #define DESC_RX_BUF_SIZE 1536 91 #define DESC_BUF_SIZE_REG (DESC_RX_BUF_SIZE / 16) 92 93 /* Transmitter timeout. */ 94 #define TX_TIMEOUT (2*HZ) 95 #define OCP_RESET_DELAY 50 96 #define MDIO_DELAY 2 97 98 /* Power managment shift registers */ 99 #define IBM_CPM_EMMII 0 /* Shift value for MII */ 100 #define IBM_CPM_EMRX 1 /* Shift value for recv */ 101 #define IBM_CPM_EMTX 2 /* Shift value for MAC */ 102 #define IBM_CPM_EMAC(x) (((x)>>IBM_CPM_EMMII) | ((x)>>IBM_CPM_EMRX) | ((x)>>IBM_CPM_EMTX)) 103 104 #ifdef CONFIG_IBM_OCP_ENET_ERROR_MSG 105 void emac_serr_dump_0(struct net_device *dev); 106 void emac_serr_dump_1(struct net_device *dev); 107 void emac_err_dump(struct net_device *dev, int em0isr); 108 void emac_phy_dump(struct net_device *); 109 void emac_desc_dump(struct net_device *); 110 void emac_mac_dump(struct net_device *); 111 void emac_mal_dump(struct net_device *); 112 #else 113 #define emac_serr_dump_0(dev) do { } while (0) 114 #define emac_serr_dump_1(dev) do { } while (0) 115 #define emac_err_dump(dev,x) do { } while (0) 116 #define emac_phy_dump(dev) do { } while (0) 117 #define emac_desc_dump(dev) do { } while (0) 118 #define emac_mac_dump(dev) do { } while (0) 119 #define emac_mal_dump(dev) do { } while (0) 120 #endif 121 122 123 struct ocp_enet_private { 124 struct sk_buff *tx_skb[NUM_TX_BUFF]; 125 struct sk_buff *rx_skb[NUM_RX_BUFF]; 126 struct mal_descriptor *tx_desc; 127 struct mal_descriptor *rx_desc; 128 struct mal_descriptor *rx_dirty; 129 struct net_device_stats stats; 130 int tx_cnt; 131 int rx_slot; 132 int dirty_rx; 133 int tx_slot; 134 int ack_slot; 135 136 struct mii_phy phy_mii; 137 int mii_phy_addr; 138 int want_autoneg; 139 int timer_ticks; 140 struct timer_list link_timer; 141 struct net_device *mdio_dev; 142 143 struct ocp_device *zmii_dev; 144 int zmii_input; 145 146 struct ibm_ocp_mal *mal; 147 int mal_tx_chan, mal_rx_chan; 148 struct mal_commac commac; 149 150 int opened; 151 int going_away; 152 int wol_irq; 153 volatile emac_t *emacp; 154 struct ocp_device *ocpdev; 155 struct net_device *ndev; 156 spinlock_t lock; 157 }; 158 159 160 #endif /* _IBM_OCP_ENET_H_ */ 161