Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ibm_emac_core.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 | |
| 22 | #ifndef _IBM_EMAC_CORE_H_ |
| 23 | #define _IBM_EMAC_CORE_H_ |
| 24 | |
| 25 | #include <linux/netdevice.h> |
| 26 | #include <asm/ocp.h> |
| 27 | #include <asm/mmu.h> /* For phys_addr_t */ |
| 28 | |
| 29 | #include "ibm_emac.h" |
| 30 | #include "ibm_emac_phy.h" |
| 31 | #include "ibm_emac_rgmii.h" |
| 32 | #include "ibm_emac_zmii.h" |
| 33 | #include "ibm_emac_mal.h" |
| 34 | #include "ibm_emac_tah.h" |
| 35 | |
| 36 | #ifndef CONFIG_IBM_EMAC_TXB |
| 37 | #define NUM_TX_BUFF 64 |
| 38 | #define NUM_RX_BUFF 64 |
| 39 | #else |
| 40 | #define NUM_TX_BUFF CONFIG_IBM_EMAC_TXB |
| 41 | #define NUM_RX_BUFF CONFIG_IBM_EMAC_RXB |
| 42 | #endif |
| 43 | |
| 44 | /* This does 16 byte alignment, exactly what we need. |
| 45 | * The packet length includes FCS, but we don't want to |
| 46 | * include that when passing upstream as it messes up |
| 47 | * bridging applications. |
| 48 | */ |
| 49 | #ifndef CONFIG_IBM_EMAC_SKBRES |
| 50 | #define SKB_RES 2 |
| 51 | #else |
| 52 | #define SKB_RES CONFIG_IBM_EMAC_SKBRES |
| 53 | #endif |
| 54 | |
| 55 | /* Note about alignement. alloc_skb() returns a cache line |
| 56 | * aligned buffer. However, dev_alloc_skb() will add 16 more |
| 57 | * bytes and "reserve" them, so our buffer will actually end |
| 58 | * on a half cache line. What we do is to use directly |
| 59 | * alloc_skb, allocate 16 more bytes to match the total amount |
| 60 | * allocated by dev_alloc_skb(), but we don't reserve. |
| 61 | */ |
| 62 | #define MAX_NUM_BUF_DESC 255 |
| 63 | #define DESC_BUF_SIZE 4080 /* max 4096-16 */ |
| 64 | #define DESC_BUF_SIZE_REG (DESC_BUF_SIZE / 16) |
| 65 | |
| 66 | /* Transmitter timeout. */ |
| 67 | #define TX_TIMEOUT (2*HZ) |
| 68 | |
| 69 | /* MDIO latency delay */ |
| 70 | #define MDIO_DELAY 250 |
| 71 | |
| 72 | /* Power managment shift registers */ |
| 73 | #define IBM_CPM_EMMII 0 /* Shift value for MII */ |
| 74 | #define IBM_CPM_EMRX 1 /* Shift value for recv */ |
| 75 | #define IBM_CPM_EMTX 2 /* Shift value for MAC */ |
| 76 | #define IBM_CPM_EMAC(x) (((x)>>IBM_CPM_EMMII) | ((x)>>IBM_CPM_EMRX) | ((x)>>IBM_CPM_EMTX)) |
| 77 | |
| 78 | #define ENET_HEADER_SIZE 14 |
| 79 | #define ENET_FCS_SIZE 4 |
| 80 | #define ENET_DEF_MTU_SIZE 1500 |
| 81 | #define ENET_DEF_BUF_SIZE (ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE) |
| 82 | #define EMAC_MIN_FRAME 64 |
| 83 | #define EMAC_MAX_FRAME 9018 |
| 84 | #define EMAC_MIN_MTU (EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE) |
| 85 | #define EMAC_MAX_MTU (EMAC_MAX_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE) |
| 86 | |
| 87 | #ifdef CONFIG_IBM_EMAC_ERRMSG |
| 88 | void emac_serr_dump_0(struct net_device *dev); |
| 89 | void emac_serr_dump_1(struct net_device *dev); |
| 90 | void emac_err_dump(struct net_device *dev, int em0isr); |
| 91 | void emac_phy_dump(struct net_device *); |
| 92 | void emac_desc_dump(struct net_device *); |
| 93 | void emac_mac_dump(struct net_device *); |
| 94 | void emac_mal_dump(struct net_device *); |
| 95 | #else |
| 96 | #define emac_serr_dump_0(dev) do { } while (0) |
| 97 | #define emac_serr_dump_1(dev) do { } while (0) |
| 98 | #define emac_err_dump(dev,x) do { } while (0) |
| 99 | #define emac_phy_dump(dev) do { } while (0) |
| 100 | #define emac_desc_dump(dev) do { } while (0) |
| 101 | #define emac_mac_dump(dev) do { } while (0) |
| 102 | #define emac_mal_dump(dev) do { } while (0) |
| 103 | #endif |
| 104 | |
| 105 | struct ocp_enet_private { |
| 106 | struct sk_buff *tx_skb[NUM_TX_BUFF]; |
| 107 | struct sk_buff *rx_skb[NUM_RX_BUFF]; |
| 108 | struct mal_descriptor *tx_desc; |
| 109 | struct mal_descriptor *rx_desc; |
| 110 | struct mal_descriptor *rx_dirty; |
| 111 | struct net_device_stats stats; |
| 112 | int tx_cnt; |
| 113 | int rx_slot; |
| 114 | int dirty_rx; |
| 115 | int tx_slot; |
| 116 | int ack_slot; |
| 117 | int rx_buffer_size; |
| 118 | |
| 119 | struct mii_phy phy_mii; |
| 120 | int mii_phy_addr; |
| 121 | int want_autoneg; |
| 122 | int timer_ticks; |
| 123 | struct timer_list link_timer; |
| 124 | struct net_device *mdio_dev; |
| 125 | |
| 126 | struct ocp_device *rgmii_dev; |
| 127 | int rgmii_input; |
| 128 | |
| 129 | struct ocp_device *zmii_dev; |
| 130 | int zmii_input; |
| 131 | |
| 132 | struct ibm_ocp_mal *mal; |
| 133 | int mal_tx_chan, mal_rx_chan; |
| 134 | struct mal_commac commac; |
| 135 | |
| 136 | struct ocp_device *tah_dev; |
| 137 | |
| 138 | int opened; |
| 139 | int going_away; |
| 140 | int wol_irq; |
| 141 | emac_t *emacp; |
| 142 | struct ocp_device *ocpdev; |
| 143 | struct net_device *ndev; |
| 144 | spinlock_t lock; |
| 145 | }; |
| 146 | #endif /* _IBM_EMAC_CORE_H_ */ |