[e16e8f2] | 1 | /************************************************************************** |
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| 2 | * via-velocity.c: Etherboot device driver for the VIA 6120 Gigabit |
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| 3 | * Changes for Etherboot port: |
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| 4 | * Copyright (c) 2006 by Timothy Legge <tlegge@rogers.com> |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU General Public License as published by |
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| 8 | * the Free Software Foundation; either version 2 of the License, or |
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| 9 | * (at your option) any later version. |
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| 10 | * |
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| 11 | * This program is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | * GNU General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU General Public License |
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| 17 | * along with this program; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 19 | * |
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| 20 | * This driver is based on: |
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| 21 | * via-velocity.c: VIA Velocity VT6120, VT6122 Ethernet driver |
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| 22 | * The changes are (c) Copyright 2004, Red Hat Inc. |
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| 23 | * <alan@redhat.com> |
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| 24 | * Additional fixes and clean up: Francois Romieu |
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| 25 | * |
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| 26 | * Original code: |
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| 27 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
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| 28 | * All rights reserved. |
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| 29 | * Author: Chuang Liang-Shing, AJ Jiang |
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| 30 | * |
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| 31 | * Linux Driver Version 2.6.15.4 |
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| 32 | * |
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| 33 | * REVISION HISTORY: |
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| 34 | * ================ |
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| 35 | * |
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| 36 | * v1.0 03-06-2006 timlegge Initial port of Linux driver |
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| 37 | * |
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| 38 | * Indent Options: indent -kr -i8 |
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| 39 | *************************************************************************/ |
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| 40 | |
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| 41 | #include "etherboot.h" |
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| 42 | #include "nic.h" |
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| 43 | #include <gpxe/pci.h> |
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| 44 | #include <gpxe/ethernet.h> |
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| 45 | |
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| 46 | #include "via-velocity.h" |
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| 47 | |
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| 48 | typedef int pci_power_t; |
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| 49 | |
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| 50 | #define PCI_D0 ((int) 0) |
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| 51 | #define PCI_D1 ((int) 1) |
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| 52 | #define PCI_D2 ((int) 2) |
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| 53 | #define PCI_D3hot ((int) 3) |
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| 54 | #define PCI_D3cold ((int) 4) |
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| 55 | #define PCI_POWER_ERROR ((int) -1) |
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| 56 | |
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| 57 | |
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| 58 | /* Condensed operations for readability. */ |
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| 59 | #define virt_to_le32desc(addr) cpu_to_le32(virt_to_bus(addr)) |
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| 60 | #define le32desc_to_virt(addr) bus_to_virt(le32_to_cpu(addr)) |
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| 61 | |
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| 62 | //FIXME: Move to pci.c |
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| 63 | int pci_set_power_state(struct pci_device *dev, int state); |
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| 64 | |
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| 65 | /* FIXME: Move BASE to the private structure */ |
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| 66 | static u32 BASE; |
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| 67 | |
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| 68 | /* NIC specific static variables go here */ |
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| 69 | #define VELOCITY_PARAM(N,D) \ |
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| 70 | static const int N[MAX_UNITS]=OPTION_DEFAULT; |
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| 71 | /* MODULE_PARM(N, "1-" __MODULE_STRING(MAX_UNITS) "i");\ |
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| 72 | MODULE_PARM_DESC(N, D); */ |
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| 73 | |
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| 74 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); |
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| 75 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); |
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| 76 | |
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| 77 | |
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| 78 | #define VLAN_ID_MIN 0 |
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| 79 | #define VLAN_ID_MAX 4095 |
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| 80 | #define VLAN_ID_DEF 0 |
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| 81 | /* VID_setting[] is used for setting the VID of NIC. |
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| 82 | 0: default VID. |
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| 83 | 1-4094: other VIDs. |
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| 84 | */ |
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| 85 | VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID"); |
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| 86 | |
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| 87 | #define RX_THRESH_MIN 0 |
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| 88 | #define RX_THRESH_MAX 3 |
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| 89 | #define RX_THRESH_DEF 0 |
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| 90 | /* rx_thresh[] is used for controlling the receive fifo threshold. |
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| 91 | 0: indicate the rxfifo threshold is 128 bytes. |
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| 92 | 1: indicate the rxfifo threshold is 512 bytes. |
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| 93 | 2: indicate the rxfifo threshold is 1024 bytes. |
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| 94 | 3: indicate the rxfifo threshold is store & forward. |
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| 95 | */ |
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| 96 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); |
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| 97 | |
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| 98 | #define DMA_LENGTH_MIN 0 |
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| 99 | #define DMA_LENGTH_MAX 7 |
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| 100 | #define DMA_LENGTH_DEF 0 |
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| 101 | |
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| 102 | /* DMA_length[] is used for controlling the DMA length |
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| 103 | 0: 8 DWORDs |
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| 104 | 1: 16 DWORDs |
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| 105 | 2: 32 DWORDs |
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| 106 | 3: 64 DWORDs |
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| 107 | 4: 128 DWORDs |
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| 108 | 5: 256 DWORDs |
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| 109 | 6: SF(flush till emply) |
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| 110 | 7: SF(flush till emply) |
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| 111 | */ |
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| 112 | VELOCITY_PARAM(DMA_length, "DMA length"); |
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| 113 | |
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| 114 | #define TAGGING_DEF 0 |
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| 115 | /* enable_tagging[] is used for enabling 802.1Q VID tagging. |
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| 116 | 0: disable VID seeting(default). |
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| 117 | 1: enable VID setting. |
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| 118 | */ |
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| 119 | VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging"); |
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| 120 | |
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| 121 | #define IP_ALIG_DEF 0 |
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| 122 | /* IP_byte_align[] is used for IP header DWORD byte aligned |
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| 123 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . |
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| 124 | 1: indicate the IP header will be DWORD byte aligned. |
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| 125 | In some enviroment, the IP header should be DWORD byte aligned, |
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| 126 | or the packet will be droped when we receive it. (eg: IPVS) |
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| 127 | */ |
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| 128 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); |
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| 129 | |
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| 130 | #define TX_CSUM_DEF 1 |
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| 131 | /* txcsum_offload[] is used for setting the checksum offload ability of NIC. |
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| 132 | (We only support RX checksum offload now) |
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| 133 | 0: disable csum_offload[checksum offload |
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| 134 | 1: enable checksum offload. (Default) |
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| 135 | */ |
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| 136 | VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload"); |
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| 137 | |
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| 138 | #define FLOW_CNTL_DEF 1 |
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| 139 | #define FLOW_CNTL_MIN 1 |
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| 140 | #define FLOW_CNTL_MAX 5 |
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| 141 | |
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| 142 | /* flow_control[] is used for setting the flow control ability of NIC. |
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| 143 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. |
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| 144 | 2: enable TX flow control. |
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| 145 | 3: enable RX flow control. |
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| 146 | 4: enable RX/TX flow control. |
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| 147 | 5: disable |
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| 148 | */ |
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| 149 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); |
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| 150 | |
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| 151 | #define MED_LNK_DEF 0 |
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| 152 | #define MED_LNK_MIN 0 |
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| 153 | #define MED_LNK_MAX 4 |
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| 154 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. |
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| 155 | 0: indicate autonegotiation for both speed and duplex mode |
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| 156 | 1: indicate 100Mbps half duplex mode |
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| 157 | 2: indicate 100Mbps full duplex mode |
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| 158 | 3: indicate 10Mbps half duplex mode |
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| 159 | 4: indicate 10Mbps full duplex mode |
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| 160 | |
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| 161 | Note: |
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| 162 | if EEPROM have been set to the force mode, this option is ignored |
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| 163 | by driver. |
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| 164 | */ |
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| 165 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); |
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| 166 | |
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| 167 | #define VAL_PKT_LEN_DEF 0 |
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| 168 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. |
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| 169 | 0: Receive frame with invalid layer 2 length (Default) |
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| 170 | 1: Drop frame with invalid layer 2 length |
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| 171 | */ |
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| 172 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); |
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| 173 | |
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| 174 | #define WOL_OPT_DEF 0 |
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| 175 | #define WOL_OPT_MIN 0 |
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| 176 | #define WOL_OPT_MAX 7 |
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| 177 | /* wol_opts[] is used for controlling wake on lan behavior. |
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| 178 | 0: Wake up if recevied a magic packet. (Default) |
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| 179 | 1: Wake up if link status is on/off. |
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| 180 | 2: Wake up if recevied an arp packet. |
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| 181 | 4: Wake up if recevied any unicast packet. |
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| 182 | Those value can be sumed up to support more than one option. |
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| 183 | */ |
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| 184 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); |
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| 185 | |
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| 186 | #define INT_WORKS_DEF 20 |
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| 187 | #define INT_WORKS_MIN 10 |
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| 188 | #define INT_WORKS_MAX 64 |
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| 189 | |
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| 190 | VELOCITY_PARAM(int_works, "Number of packets per interrupt services"); |
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| 191 | |
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| 192 | /* The descriptors for this card are required to be aligned on |
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| 193 | 64 byte boundaries. As the align attribute does not guarantee alignment |
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| 194 | greater than the alignment of the start address (which for Etherboot |
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| 195 | is 16 bytes of alignment) it requires some extra steps. Add 64 to the |
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| 196 | size of the array and the init_ring adjusts the alignment */ |
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| 197 | |
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| 198 | /* Define the TX Descriptor */ |
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| 199 | static u8 tx_ring[TX_DESC_DEF * sizeof(struct tx_desc) + 64]; |
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| 200 | |
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| 201 | /* Create a static buffer of size PKT_BUF_SZ for each TX Descriptor. |
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| 202 | All descriptors point to a part of this buffer */ |
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| 203 | static u8 txb[(TX_DESC_DEF * PKT_BUF_SZ) + 64]; |
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| 204 | |
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| 205 | /* Define the RX Descriptor */ |
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| 206 | static u8 rx_ring[RX_DESC_DEF * sizeof(struct rx_desc) + 64]; |
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| 207 | |
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| 208 | /* Create a static buffer of size PKT_BUF_SZ for each RX Descriptor |
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| 209 | All descriptors point to a part of this buffer */ |
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| 210 | static u8 rxb[(RX_DESC_DEF * PKT_BUF_SZ) + 64]; |
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| 211 | |
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| 212 | static void velocity_init_info(struct pci_device *pdev, |
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| 213 | struct velocity_info *vptr, |
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| 214 | struct velocity_info_tbl *info); |
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| 215 | static int velocity_get_pci_info(struct velocity_info *, |
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| 216 | struct pci_device *pdev); |
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| 217 | static int velocity_open(struct nic *nic, struct pci_device *pci); |
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| 218 | |
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| 219 | static int velocity_soft_reset(struct velocity_info *vptr); |
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| 220 | static void velocity_init_cam_filter(struct velocity_info *vptr); |
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| 221 | static void mii_init(struct velocity_info *vptr, u32 mii_status); |
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| 222 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr); |
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| 223 | static void velocity_print_link_status(struct velocity_info *vptr); |
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| 224 | static void safe_disable_mii_autopoll(struct mac_regs *regs); |
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| 225 | static void enable_flow_control_ability(struct velocity_info *vptr); |
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| 226 | static void enable_mii_autopoll(struct mac_regs *regs); |
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| 227 | static int velocity_mii_read(struct mac_regs *, u8 byIdx, u16 * pdata); |
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| 228 | static int velocity_mii_write(struct mac_regs *, u8 byMiiAddr, u16 data); |
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| 229 | static u32 mii_check_media_mode(struct mac_regs *regs); |
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| 230 | static u32 check_connection_type(struct mac_regs *regs); |
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| 231 | static int velocity_set_media_mode(struct velocity_info *vptr, |
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| 232 | u32 mii_status); |
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| 233 | |
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| 234 | |
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| 235 | /* |
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| 236 | * Internal board variants. At the moment we have only one |
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| 237 | */ |
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| 238 | |
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| 239 | static struct velocity_info_tbl chip_info_table[] = { |
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| 240 | {CHIP_TYPE_VT6110, |
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| 241 | "VIA Networking Velocity Family Gigabit Ethernet Adapter", 256, 1, |
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| 242 | 0x00FFFFFFUL}, |
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| 243 | {0, NULL, 0, 0, 0} |
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| 244 | }; |
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| 245 | |
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| 246 | /** |
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| 247 | * velocity_set_int_opt - parser for integer options |
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| 248 | * @opt: pointer to option value |
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| 249 | * @val: value the user requested (or -1 for default) |
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| 250 | * @min: lowest value allowed |
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| 251 | * @max: highest value allowed |
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| 252 | * @def: default value |
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| 253 | * @name: property name |
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| 254 | * @dev: device name |
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| 255 | * |
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| 256 | * Set an integer property in the module options. This function does |
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| 257 | * all the verification and checking as well as reporting so that |
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| 258 | * we don't duplicate code for each option. |
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| 259 | */ |
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| 260 | |
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| 261 | static void velocity_set_int_opt(int *opt, int val, int min, int max, |
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| 262 | int def, char *name, const char *devname) |
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| 263 | { |
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| 264 | if (val == -1) { |
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| 265 | printf("%s: set value of parameter %s to %d\n", |
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| 266 | devname, name, def); |
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| 267 | *opt = def; |
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| 268 | } else if (val < min || val > max) { |
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| 269 | printf |
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| 270 | ("%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", |
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| 271 | devname, name, min, max); |
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| 272 | *opt = def; |
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| 273 | } else { |
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| 274 | printf("%s: set value of parameter %s to %d\n", |
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| 275 | devname, name, val); |
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| 276 | *opt = val; |
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| 277 | } |
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| 278 | } |
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| 279 | |
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| 280 | /** |
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| 281 | * velocity_set_bool_opt - parser for boolean options |
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| 282 | * @opt: pointer to option value |
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| 283 | * @val: value the user requested (or -1 for default) |
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| 284 | * @def: default value (yes/no) |
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| 285 | * @flag: numeric value to set for true. |
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| 286 | * @name: property name |
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| 287 | * @dev: device name |
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| 288 | * |
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| 289 | * Set a boolean property in the module options. This function does |
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| 290 | * all the verification and checking as well as reporting so that |
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| 291 | * we don't duplicate code for each option. |
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| 292 | */ |
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| 293 | |
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| 294 | static void velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, |
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| 295 | char *name, const char *devname) |
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| 296 | { |
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| 297 | (*opt) &= (~flag); |
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| 298 | if (val == -1) { |
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| 299 | printf("%s: set parameter %s to %s\n", |
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| 300 | devname, name, def ? "TRUE" : "FALSE"); |
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| 301 | *opt |= (def ? flag : 0); |
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| 302 | } else if (val < 0 || val > 1) { |
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| 303 | printf |
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| 304 | ("%s: the value of parameter %s is invalid, the valid range is (0-1)\n", |
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| 305 | devname, name); |
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| 306 | *opt |= (def ? flag : 0); |
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| 307 | } else { |
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| 308 | printf("%s: set parameter %s to %s\n", |
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| 309 | devname, name, val ? "TRUE" : "FALSE"); |
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| 310 | *opt |= (val ? flag : 0); |
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| 311 | } |
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| 312 | } |
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| 313 | |
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| 314 | /** |
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| 315 | * velocity_get_options - set options on device |
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| 316 | * @opts: option structure for the device |
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| 317 | * @index: index of option to use in module options array |
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| 318 | * @devname: device name |
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| 319 | * |
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| 320 | * Turn the module and command options into a single structure |
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| 321 | * for the current device |
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| 322 | */ |
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| 323 | |
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| 324 | static void velocity_get_options(struct velocity_opt *opts, int index, |
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| 325 | const char *devname) |
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| 326 | { |
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| 327 | |
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| 328 | /* FIXME Do the options need to be configurable */ |
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| 329 | velocity_set_int_opt(&opts->rx_thresh, -1, RX_THRESH_MIN, |
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| 330 | RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", |
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| 331 | devname); |
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| 332 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], |
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| 333 | DMA_LENGTH_MIN, DMA_LENGTH_MAX, |
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| 334 | DMA_LENGTH_DEF, "DMA_length", devname); |
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| 335 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], |
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| 336 | RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, |
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| 337 | "RxDescriptors", devname); |
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| 338 | velocity_set_int_opt(&opts->numtx, TxDescriptors[index], |
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| 339 | TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, |
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| 340 | "TxDescriptors", devname); |
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| 341 | velocity_set_int_opt(&opts->vid, VID_setting[index], VLAN_ID_MIN, |
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| 342 | VLAN_ID_MAX, VLAN_ID_DEF, "VID_setting", |
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| 343 | devname); |
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| 344 | velocity_set_bool_opt(&opts->flags, enable_tagging[index], |
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| 345 | TAGGING_DEF, VELOCITY_FLAGS_TAGGING, |
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| 346 | "enable_tagging", devname); |
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| 347 | velocity_set_bool_opt(&opts->flags, txcsum_offload[index], |
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| 348 | TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, |
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| 349 | "txcsum_offload", devname); |
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| 350 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], |
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| 351 | FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, |
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| 352 | "flow_control", devname); |
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| 353 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], |
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| 354 | IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, |
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| 355 | "IP_byte_align", devname); |
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| 356 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], |
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| 357 | VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, |
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| 358 | "ValPktLen", devname); |
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| 359 | velocity_set_int_opt((void *) &opts->spd_dpx, speed_duplex[index], |
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| 360 | MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, |
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| 361 | "Media link mode", devname); |
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| 362 | velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], |
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| 363 | WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, |
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| 364 | "Wake On Lan options", devname); |
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| 365 | velocity_set_int_opt((int *) &opts->int_works, int_works[index], |
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| 366 | INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, |
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| 367 | "Interrupt service works", devname); |
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| 368 | opts->numrx = (opts->numrx & ~3); |
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| 369 | } |
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| 370 | |
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| 371 | /** |
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| 372 | * velocity_init_cam_filter - initialise CAM |
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| 373 | * @vptr: velocity to program |
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| 374 | * |
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| 375 | * Initialize the content addressable memory used for filters. Load |
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| 376 | * appropriately according to the presence of VLAN |
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| 377 | */ |
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| 378 | |
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| 379 | static void velocity_init_cam_filter(struct velocity_info *vptr) |
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| 380 | { |
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| 381 | struct mac_regs *regs = vptr->mac_regs; |
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| 382 | |
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| 383 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ |
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| 384 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); |
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| 385 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); |
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| 386 | |
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| 387 | /* Disable all CAMs */ |
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| 388 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); |
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| 389 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); |
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| 390 | mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM); |
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| 391 | mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM); |
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| 392 | |
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| 393 | /* Enable first VCAM */ |
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| 394 | if (vptr->flags & VELOCITY_FLAGS_TAGGING) { |
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| 395 | /* If Tagging option is enabled and VLAN ID is not zero, then |
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| 396 | turn on MCFG_RTGOPT also */ |
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| 397 | if (vptr->options.vid != 0) |
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| 398 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); |
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| 399 | |
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| 400 | mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), |
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| 401 | VELOCITY_VLAN_ID_CAM); |
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| 402 | vptr->vCAMmask[0] |= 1; |
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| 403 | mac_set_cam_mask(regs, vptr->vCAMmask, |
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| 404 | VELOCITY_VLAN_ID_CAM); |
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| 405 | } else { |
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| 406 | u16 temp = 0; |
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| 407 | mac_set_cam(regs, 0, (u8 *) & temp, VELOCITY_VLAN_ID_CAM); |
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| 408 | temp = 1; |
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| 409 | mac_set_cam_mask(regs, (u8 *) & temp, |
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| 410 | VELOCITY_VLAN_ID_CAM); |
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| 411 | } |
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| 412 | } |
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| 413 | |
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| 414 | static inline void velocity_give_many_rx_descs(struct velocity_info *vptr) |
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| 415 | { |
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| 416 | struct mac_regs *regs = vptr->mac_regs; |
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| 417 | int avail, dirty, unusable; |
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| 418 | |
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| 419 | /* |
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| 420 | * RD number must be equal to 4X per hardware spec |
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| 421 | * (programming guide rev 1.20, p.13) |
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| 422 | */ |
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| 423 | if (vptr->rd_filled < 4) |
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| 424 | return; |
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| 425 | |
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| 426 | wmb(); |
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| 427 | |
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| 428 | unusable = vptr->rd_filled & 0x0003; |
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| 429 | dirty = vptr->rd_dirty - unusable; |
---|
| 430 | for (avail = vptr->rd_filled & 0xfffc; avail; avail--) { |
---|
| 431 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; |
---|
| 432 | // printf("return dirty: %d\n", dirty); |
---|
| 433 | vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC; |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | writew(vptr->rd_filled & 0xfffc, ®s->RBRDU); |
---|
| 437 | vptr->rd_filled = unusable; |
---|
| 438 | } |
---|
| 439 | |
---|
| 440 | static int velocity_rx_refill(struct velocity_info *vptr) |
---|
| 441 | { |
---|
| 442 | int dirty = vptr->rd_dirty, done = 0, ret = 0; |
---|
| 443 | |
---|
| 444 | // printf("rx_refill - rd_curr = %d, dirty = %d\n", vptr->rd_curr, dirty); |
---|
| 445 | do { |
---|
| 446 | struct rx_desc *rd = vptr->rd_ring + dirty; |
---|
| 447 | |
---|
| 448 | /* Fine for an all zero Rx desc at init time as well */ |
---|
| 449 | if (rd->rdesc0.owner == OWNED_BY_NIC) |
---|
| 450 | break; |
---|
| 451 | // printf("rx_refill - after owner %d\n", dirty); |
---|
| 452 | |
---|
| 453 | rd->inten = 1; |
---|
| 454 | rd->pa_high = 0; |
---|
| 455 | rd->rdesc0.len = cpu_to_le32(vptr->rx_buf_sz);; |
---|
| 456 | |
---|
| 457 | done++; |
---|
| 458 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; |
---|
| 459 | } while (dirty != vptr->rd_curr); |
---|
| 460 | |
---|
| 461 | if (done) { |
---|
| 462 | // printf("\nGive Back Desc\n"); |
---|
| 463 | vptr->rd_dirty = dirty; |
---|
| 464 | vptr->rd_filled += done; |
---|
| 465 | velocity_give_many_rx_descs(vptr); |
---|
| 466 | } |
---|
| 467 | |
---|
| 468 | return ret; |
---|
| 469 | } |
---|
| 470 | |
---|
| 471 | extern void hex_dump(const char *data, const unsigned int len); |
---|
| 472 | /************************************************************************** |
---|
| 473 | POLL - Wait for a frame |
---|
| 474 | ***************************************************************************/ |
---|
| 475 | static int velocity_poll(struct nic *nic, int retrieve) |
---|
| 476 | { |
---|
| 477 | /* Work out whether or not there's an ethernet packet ready to |
---|
| 478 | * read. Return 0 if not. |
---|
| 479 | */ |
---|
| 480 | |
---|
| 481 | int rd_curr = vptr->rd_curr % RX_DESC_DEF; |
---|
| 482 | struct rx_desc *rd = &(vptr->rd_ring[rd_curr]); |
---|
| 483 | |
---|
| 484 | if (rd->rdesc0.owner == OWNED_BY_NIC) |
---|
| 485 | return 0; |
---|
| 486 | rmb(); |
---|
| 487 | |
---|
| 488 | if ( ! retrieve ) return 1; |
---|
| 489 | |
---|
| 490 | /* |
---|
| 491 | * Don't drop CE or RL error frame although RXOK is off |
---|
| 492 | */ |
---|
| 493 | if ((rd->rdesc0.RSR & RSR_RXOK) |
---|
| 494 | || (!(rd->rdesc0.RSR & RSR_RXOK) |
---|
| 495 | && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) { |
---|
| 496 | |
---|
| 497 | nic->packetlen = rd->rdesc0.len; |
---|
| 498 | // ptr->rxb + (rd_curr * PKT_BUF_SZ) |
---|
| 499 | memcpy(nic->packet, bus_to_virt(rd->pa_low), |
---|
| 500 | nic->packetlen - 4); |
---|
| 501 | |
---|
| 502 | vptr->rd_curr++; |
---|
| 503 | vptr->rd_curr = vptr->rd_curr % RX_DESC_DEF; |
---|
| 504 | velocity_rx_refill(vptr); |
---|
| 505 | return 1; /* Remove this line once this method is implemented */ |
---|
| 506 | } |
---|
| 507 | return 0; |
---|
| 508 | } |
---|
| 509 | |
---|
| 510 | #define TX_TIMEOUT (1000); |
---|
| 511 | /************************************************************************** |
---|
| 512 | TRANSMIT - Transmit a frame |
---|
| 513 | ***************************************************************************/ |
---|
| 514 | static void velocity_transmit(struct nic *nic, const char *dest, /* Destination */ |
---|
| 515 | unsigned int type, /* Type */ |
---|
| 516 | unsigned int size, /* size */ |
---|
| 517 | const char *packet) |
---|
| 518 | { /* Packet */ |
---|
| 519 | u16 nstype; |
---|
| 520 | u32 to; |
---|
| 521 | u8 *ptxb; |
---|
| 522 | unsigned int pktlen; |
---|
| 523 | struct tx_desc *td_ptr; |
---|
| 524 | |
---|
| 525 | int entry = vptr->td_curr % TX_DESC_DEF; |
---|
| 526 | td_ptr = &(vptr->td_rings[entry]); |
---|
| 527 | |
---|
| 528 | /* point to the current txb incase multiple tx_rings are used */ |
---|
| 529 | ptxb = vptr->txb + (entry * PKT_BUF_SZ); |
---|
| 530 | memcpy(ptxb, dest, ETH_ALEN); /* Destination */ |
---|
| 531 | memcpy(ptxb + ETH_ALEN, nic->node_addr, ETH_ALEN); /* Source */ |
---|
| 532 | nstype = htons((u16) type); /* Type */ |
---|
| 533 | memcpy(ptxb + 2 * ETH_ALEN, (u8 *) & nstype, 2); /* Type */ |
---|
| 534 | memcpy(ptxb + ETH_HLEN, packet, size); |
---|
| 535 | |
---|
| 536 | td_ptr->tdesc1.TCPLS = TCPLS_NORMAL; |
---|
| 537 | td_ptr->tdesc1.TCR = TCR0_TIC; |
---|
| 538 | td_ptr->td_buf[0].queue = 0; |
---|
| 539 | |
---|
| 540 | size += ETH_HLEN; |
---|
| 541 | while (size < ETH_ZLEN) /* pad to min length */ |
---|
| 542 | ptxb[size++] = '\0'; |
---|
| 543 | |
---|
| 544 | if (size < ETH_ZLEN) { |
---|
| 545 | // printf("Padd that packet\n"); |
---|
| 546 | pktlen = ETH_ZLEN; |
---|
| 547 | // memcpy(ptxb, skb->data, skb->len); |
---|
| 548 | memset(ptxb + size, 0, ETH_ZLEN - size); |
---|
| 549 | |
---|
| 550 | vptr->td_rings[entry].tdesc0.pktsize = pktlen; |
---|
| 551 | vptr->td_rings[entry].td_buf[0].pa_low = virt_to_bus(ptxb); |
---|
| 552 | vptr->td_rings[entry].td_buf[0].pa_high &= |
---|
| 553 | cpu_to_le32(0xffff0000UL); |
---|
| 554 | vptr->td_rings[entry].td_buf[0].bufsize = |
---|
| 555 | vptr->td_rings[entry].tdesc0.pktsize; |
---|
| 556 | vptr->td_rings[entry].tdesc1.CMDZ = 2; |
---|
| 557 | } else { |
---|
| 558 | // printf("Correct size packet\n"); |
---|
| 559 | td_ptr->tdesc0.pktsize = size; |
---|
| 560 | td_ptr->td_buf[0].pa_low = virt_to_bus(ptxb); |
---|
| 561 | td_ptr->td_buf[0].pa_high = 0; |
---|
| 562 | td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; |
---|
| 563 | // tdinfo->nskb_dma = 1; |
---|
| 564 | td_ptr->tdesc1.CMDZ = 2; |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | if (vptr->flags & VELOCITY_FLAGS_TAGGING) { |
---|
| 568 | td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff); |
---|
| 569 | td_ptr->tdesc1.pqinf.priority = 0; |
---|
| 570 | td_ptr->tdesc1.pqinf.CFI = 0; |
---|
| 571 | td_ptr->tdesc1.TCR |= TCR0_VETAG; |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | vptr->td_curr = (entry + 1); |
---|
| 575 | |
---|
| 576 | { |
---|
| 577 | |
---|
| 578 | int prev = entry - 1; |
---|
| 579 | |
---|
| 580 | if (prev < 0) |
---|
| 581 | prev = TX_DESC_DEF - 1; |
---|
| 582 | td_ptr->tdesc0.owner |= OWNED_BY_NIC; |
---|
| 583 | td_ptr = &(vptr->td_rings[prev]); |
---|
| 584 | td_ptr->td_buf[0].queue = 1; |
---|
| 585 | mac_tx_queue_wake(vptr->mac_regs, 0); |
---|
| 586 | |
---|
| 587 | } |
---|
| 588 | |
---|
| 589 | to = currticks() + TX_TIMEOUT; |
---|
| 590 | while ((td_ptr->tdesc0.owner & OWNED_BY_NIC) && (currticks() < to)); /* wait */ |
---|
| 591 | |
---|
| 592 | if (currticks() >= to) { |
---|
| 593 | printf("TX Time Out"); |
---|
| 594 | } |
---|
| 595 | |
---|
| 596 | } |
---|
| 597 | |
---|
| 598 | /************************************************************************** |
---|
| 599 | DISABLE - Turn off ethernet interface |
---|
| 600 | ***************************************************************************/ |
---|
| 601 | static void velocity_disable(struct nic *nic __unused) |
---|
| 602 | { |
---|
| 603 | /* put the card in its initial state */ |
---|
| 604 | /* This function serves 3 purposes. |
---|
| 605 | * This disables DMA and interrupts so we don't receive |
---|
| 606 | * unexpected packets or interrupts from the card after |
---|
| 607 | * etherboot has finished. |
---|
| 608 | * This frees resources so etherboot may use |
---|
| 609 | * this driver on another interface |
---|
| 610 | * This allows etherboot to reinitialize the interface |
---|
| 611 | * if something is something goes wrong. |
---|
| 612 | */ |
---|
| 613 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 614 | mac_disable_int(regs); |
---|
| 615 | writel(CR0_STOP, ®s->CR0Set); |
---|
| 616 | writew(0xFFFF, ®s->TDCSRClr); |
---|
| 617 | writeb(0xFF, ®s->RDCSRClr); |
---|
| 618 | safe_disable_mii_autopoll(regs); |
---|
| 619 | mac_clear_isr(regs); |
---|
| 620 | |
---|
| 621 | /* Power down the chip */ |
---|
| 622 | // pci_set_power_state(vptr->pdev, PCI_D3hot); |
---|
| 623 | |
---|
| 624 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | /************************************************************************** |
---|
| 628 | IRQ - handle interrupts |
---|
| 629 | ***************************************************************************/ |
---|
| 630 | static void velocity_irq(struct nic *nic __unused, irq_action_t action) |
---|
| 631 | { |
---|
| 632 | /* This routine is somewhat optional. Etherboot itself |
---|
| 633 | * doesn't use interrupts, but they are required under some |
---|
| 634 | * circumstances when we're acting as a PXE stack. |
---|
| 635 | * |
---|
| 636 | * If you don't implement this routine, the only effect will |
---|
| 637 | * be that your driver cannot be used via Etherboot's UNDI |
---|
| 638 | * API. This won't affect programs that use only the UDP |
---|
| 639 | * portion of the PXE API, such as pxelinux. |
---|
| 640 | */ |
---|
| 641 | |
---|
| 642 | switch (action) { |
---|
| 643 | case DISABLE: |
---|
| 644 | case ENABLE: |
---|
| 645 | /* Set receive interrupt enabled/disabled state */ |
---|
| 646 | /* |
---|
| 647 | outb ( action == ENABLE ? IntrMaskEnabled : IntrMaskDisabled, |
---|
| 648 | nic->ioaddr + IntrMaskRegister ); |
---|
| 649 | */ |
---|
| 650 | break; |
---|
| 651 | case FORCE: |
---|
| 652 | /* Force NIC to generate a receive interrupt */ |
---|
| 653 | /* |
---|
| 654 | outb ( ForceInterrupt, nic->ioaddr + IntrForceRegister ); |
---|
| 655 | */ |
---|
| 656 | break; |
---|
| 657 | } |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | static struct nic_operations velocity_operations = { |
---|
| 661 | .connect = dummy_connect, |
---|
| 662 | .poll = velocity_poll, |
---|
| 663 | .transmit = velocity_transmit, |
---|
| 664 | .irq = velocity_irq, |
---|
| 665 | }; |
---|
| 666 | |
---|
| 667 | /************************************************************************** |
---|
| 668 | PROBE - Look for an adapter, this routine's visible to the outside |
---|
| 669 | ***************************************************************************/ |
---|
| 670 | static int velocity_probe( struct nic *nic, struct pci_device *pci) |
---|
| 671 | { |
---|
| 672 | int ret, i; |
---|
| 673 | struct mac_regs *regs; |
---|
| 674 | |
---|
| 675 | printf("via-velocity.c: Found %s Vendor=0x%hX Device=0x%hX\n", |
---|
| 676 | pci->driver_name, pci->vendor, pci->device); |
---|
| 677 | |
---|
| 678 | /* point to private storage */ |
---|
| 679 | vptr = &vptx; |
---|
| 680 | info = chip_info_table; |
---|
| 681 | |
---|
| 682 | velocity_init_info(pci, vptr, info); |
---|
| 683 | |
---|
| 684 | //FIXME: pci_enable_device(pci); |
---|
| 685 | //FIXME: pci_set_power_state(pci, PCI_D0); |
---|
| 686 | |
---|
| 687 | ret = velocity_get_pci_info(vptr, pci); |
---|
| 688 | if (ret < 0) { |
---|
| 689 | printf("Failed to find PCI device.\n"); |
---|
| 690 | return 0; |
---|
| 691 | } |
---|
| 692 | |
---|
| 693 | regs = ioremap(vptr->memaddr, vptr->io_size); |
---|
| 694 | if (regs == NULL) { |
---|
| 695 | printf("Unable to remap io\n"); |
---|
| 696 | return 0; |
---|
| 697 | } |
---|
| 698 | |
---|
| 699 | vptr->mac_regs = regs; |
---|
| 700 | |
---|
| 701 | BASE = vptr->ioaddr; |
---|
| 702 | |
---|
| 703 | printf("Chip ID: %hX\n", vptr->chip_id); |
---|
| 704 | |
---|
| 705 | for (i = 0; i < 6; i++) |
---|
| 706 | nic->node_addr[i] = readb(®s->PAR[i]); |
---|
| 707 | |
---|
| 708 | DBG ( "%s: %s at ioaddr %#hX\n", pci->driver_name, eth_ntoa ( nic->node_addr ), |
---|
| 709 | (unsigned int) BASE ); |
---|
| 710 | |
---|
| 711 | velocity_get_options(&vptr->options, 0, pci->driver_name); |
---|
| 712 | |
---|
| 713 | /* |
---|
| 714 | * Mask out the options cannot be set to the chip |
---|
| 715 | */ |
---|
| 716 | vptr->options.flags &= 0x00FFFFFFUL; //info->flags = 0x00FFFFFFUL; |
---|
| 717 | |
---|
| 718 | /* |
---|
| 719 | * Enable the chip specified capbilities |
---|
| 720 | */ |
---|
| 721 | |
---|
| 722 | vptr->flags = |
---|
| 723 | vptr->options. |
---|
| 724 | flags | (0x00FFFFFFUL /*info->flags */ & 0xFF000000UL); |
---|
| 725 | |
---|
| 726 | vptr->wol_opts = vptr->options.wol_opts; |
---|
| 727 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
---|
| 728 | |
---|
| 729 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); |
---|
| 730 | |
---|
| 731 | if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) { |
---|
| 732 | printf("features missing\n"); |
---|
| 733 | } |
---|
| 734 | |
---|
| 735 | /* and leave the chip powered down */ |
---|
| 736 | // FIXME: pci_set_power_state(pci, PCI_D3hot); |
---|
| 737 | |
---|
| 738 | check_connection_type(vptr->mac_regs); |
---|
| 739 | velocity_open(nic, pci); |
---|
| 740 | |
---|
| 741 | /* store NIC parameters */ |
---|
| 742 | nic->nic_op = &velocity_operations; |
---|
| 743 | return 1; |
---|
| 744 | } |
---|
| 745 | |
---|
| 746 | //#define IORESOURCE_IO 0x00000100 /* Resource type */ |
---|
| 747 | |
---|
| 748 | /** |
---|
| 749 | * velocity_init_info - init private data |
---|
| 750 | * @pdev: PCI device |
---|
| 751 | * @vptr: Velocity info |
---|
| 752 | * @info: Board type |
---|
| 753 | * |
---|
| 754 | * Set up the initial velocity_info struct for the device that has been |
---|
| 755 | * discovered. |
---|
| 756 | */ |
---|
| 757 | |
---|
| 758 | static void velocity_init_info(struct pci_device *pdev, |
---|
| 759 | struct velocity_info *vptr, |
---|
| 760 | struct velocity_info_tbl *info) |
---|
| 761 | { |
---|
| 762 | memset(vptr, 0, sizeof(struct velocity_info)); |
---|
| 763 | |
---|
| 764 | vptr->pdev = pdev; |
---|
| 765 | vptr->chip_id = info->chip_id; |
---|
| 766 | vptr->io_size = info->io_size; |
---|
| 767 | vptr->num_txq = info->txqueue; |
---|
| 768 | vptr->multicast_limit = MCAM_SIZE; |
---|
| 769 | |
---|
| 770 | printf |
---|
| 771 | ("chip_id: 0x%hX, io_size: %d, num_txq %d, multicast_limit: %d\n", |
---|
| 772 | vptr->chip_id, (unsigned int) vptr->io_size, vptr->num_txq, |
---|
| 773 | vptr->multicast_limit); |
---|
| 774 | printf("Name: %s\n", info->name); |
---|
| 775 | |
---|
| 776 | // spin_lock_init(&vptr->lock); |
---|
| 777 | // INIT_LIST_HEAD(&vptr->list); |
---|
| 778 | } |
---|
| 779 | |
---|
| 780 | /** |
---|
| 781 | * velocity_get_pci_info - retrieve PCI info for device |
---|
| 782 | * @vptr: velocity device |
---|
| 783 | * @pdev: PCI device it matches |
---|
| 784 | * |
---|
| 785 | * Retrieve the PCI configuration space data that interests us from |
---|
| 786 | * the kernel PCI layer |
---|
| 787 | */ |
---|
| 788 | |
---|
| 789 | #define IORESOURCE_IO 0x00000100 /* Resource type */ |
---|
| 790 | #define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ |
---|
| 791 | |
---|
| 792 | #define IORESOURCE_MEM 0x00000200 |
---|
| 793 | #define BAR_0 0 |
---|
| 794 | #define BAR_1 1 |
---|
| 795 | #define BAR_5 5 |
---|
| 796 | #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */ |
---|
| 797 | #define PCI_BASE_ADDRESS_SPACE_IO 0x01 |
---|
| 798 | #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00 |
---|
| 799 | #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06 |
---|
| 800 | #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */ |
---|
| 801 | #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */ |
---|
| 802 | #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */ |
---|
| 803 | #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */ |
---|
| 804 | //#define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL) |
---|
| 805 | // #define PCI_BASE_ADDRESS_IO_MASK (~0x03UL) |
---|
| 806 | |
---|
| 807 | unsigned long pci_resource_flags(struct pci_device *pdev, unsigned int bar) |
---|
| 808 | { |
---|
| 809 | uint32_t l, sz; |
---|
| 810 | unsigned long flags = 0; |
---|
| 811 | |
---|
| 812 | pci_read_config_dword(pdev, bar, &l); |
---|
| 813 | pci_write_config_dword(pdev, bar, ~0); |
---|
| 814 | pci_read_config_dword(pdev, bar, &sz); |
---|
| 815 | pci_write_config_dword(pdev, bar, l); |
---|
| 816 | |
---|
| 817 | if (!sz || sz == 0xffffffff) |
---|
| 818 | printf("Weird size\n"); |
---|
| 819 | if (l == 0xffffffff) |
---|
| 820 | l = 0; |
---|
| 821 | if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) { |
---|
| 822 | /* sz = pci_size(l, sz, PCI_BASE_ADDRESS_MEM_MASK); |
---|
| 823 | if (!sz) |
---|
| 824 | continue; |
---|
| 825 | res->start = l & PCI_BASE_ADDRESS_MEM_MASK; |
---|
| 826 | */ flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK; |
---|
| 827 | printf("Memory Resource\n"); |
---|
| 828 | } else { |
---|
| 829 | // sz = pci_size(l, sz, PCI_BASE_ADDRESS_IO_MASK & 0xffff); |
---|
| 830 | /// if (!sz) |
---|
| 831 | /// continue; |
---|
| 832 | // res->start = l & PCI_BASE_ADDRESS_IO_MASK; |
---|
| 833 | flags |= l & ~PCI_BASE_ADDRESS_IO_MASK; |
---|
| 834 | printf("I/O Resource\n"); |
---|
| 835 | } |
---|
| 836 | if (flags & PCI_BASE_ADDRESS_SPACE_IO) { |
---|
| 837 | printf("Why is it here\n"); |
---|
| 838 | flags |= IORESOURCE_IO; |
---|
| 839 | } else { |
---|
| 840 | printf("here\n"); |
---|
| 841 | //flags &= ~IORESOURCE_IO; |
---|
| 842 | } |
---|
| 843 | |
---|
| 844 | |
---|
| 845 | if (flags & PCI_BASE_ADDRESS_MEM_PREFETCH) |
---|
| 846 | flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH; |
---|
| 847 | |
---|
| 848 | |
---|
| 849 | return flags; |
---|
| 850 | } |
---|
| 851 | static int velocity_get_pci_info(struct velocity_info *vptr, |
---|
| 852 | struct pci_device *pdev) |
---|
| 853 | { |
---|
| 854 | if (pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0) { |
---|
| 855 | printf("DEBUG: pci_read_config_byte failed\n"); |
---|
| 856 | return -1; |
---|
| 857 | } |
---|
| 858 | |
---|
| 859 | adjust_pci_device(pdev); |
---|
| 860 | |
---|
| 861 | vptr->ioaddr = pci_bar_start(pdev, PCI_BASE_ADDRESS_0); |
---|
| 862 | vptr->memaddr = pci_bar_start(pdev, PCI_BASE_ADDRESS_1); |
---|
| 863 | |
---|
| 864 | printf("Looking for I/O Resource - Found:"); |
---|
| 865 | if (! |
---|
| 866 | (pci_resource_flags(pdev, PCI_BASE_ADDRESS_0) & IORESOURCE_IO)) |
---|
| 867 | { |
---|
| 868 | printf |
---|
| 869 | ("DEBUG: region #0 is not an I/O resource, aborting.\n"); |
---|
| 870 | return -1; |
---|
| 871 | } |
---|
| 872 | |
---|
| 873 | printf("Looking for Memory Resource - Found:"); |
---|
| 874 | if ((pci_resource_flags(pdev, PCI_BASE_ADDRESS_1) & IORESOURCE_IO)) { |
---|
| 875 | printf("DEBUG: region #1 is an I/O resource, aborting.\n"); |
---|
| 876 | return -1; |
---|
| 877 | } |
---|
| 878 | |
---|
| 879 | if (pci_bar_size(pdev, PCI_BASE_ADDRESS_1) < 256) { |
---|
| 880 | printf("DEBUG: region #1 is too small.\n"); |
---|
| 881 | return -1; |
---|
| 882 | } |
---|
| 883 | vptr->pdev = pdev; |
---|
| 884 | |
---|
| 885 | return 0; |
---|
| 886 | } |
---|
| 887 | |
---|
| 888 | /** |
---|
| 889 | * velocity_print_link_status - link status reporting |
---|
| 890 | * @vptr: velocity to report on |
---|
| 891 | * |
---|
| 892 | * Turn the link status of the velocity card into a kernel log |
---|
| 893 | * description of the new link state, detailing speed and duplex |
---|
| 894 | * status |
---|
| 895 | */ |
---|
| 896 | |
---|
| 897 | static void velocity_print_link_status(struct velocity_info *vptr) |
---|
| 898 | { |
---|
| 899 | |
---|
| 900 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { |
---|
| 901 | printf("failed to detect cable link\n"); |
---|
| 902 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
---|
| 903 | printf("Link autonegation"); |
---|
| 904 | |
---|
| 905 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
---|
| 906 | printf(" speed 1000M bps"); |
---|
| 907 | else if (vptr->mii_status & VELOCITY_SPEED_100) |
---|
| 908 | printf(" speed 100M bps"); |
---|
| 909 | else |
---|
| 910 | printf(" speed 10M bps"); |
---|
| 911 | |
---|
| 912 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 913 | printf(" full duplex\n"); |
---|
| 914 | else |
---|
| 915 | printf(" half duplex\n"); |
---|
| 916 | } else { |
---|
| 917 | printf("Link forced"); |
---|
| 918 | switch (vptr->options.spd_dpx) { |
---|
| 919 | case SPD_DPX_100_HALF: |
---|
| 920 | printf(" speed 100M bps half duplex\n"); |
---|
| 921 | break; |
---|
| 922 | case SPD_DPX_100_FULL: |
---|
| 923 | printf(" speed 100M bps full duplex\n"); |
---|
| 924 | break; |
---|
| 925 | case SPD_DPX_10_HALF: |
---|
| 926 | printf(" speed 10M bps half duplex\n"); |
---|
| 927 | break; |
---|
| 928 | case SPD_DPX_10_FULL: |
---|
| 929 | printf(" speed 10M bps full duplex\n"); |
---|
| 930 | break; |
---|
| 931 | default: |
---|
| 932 | break; |
---|
| 933 | } |
---|
| 934 | } |
---|
| 935 | } |
---|
| 936 | |
---|
| 937 | /** |
---|
| 938 | * velocity_rx_reset - handle a receive reset |
---|
| 939 | * @vptr: velocity we are resetting |
---|
| 940 | * |
---|
| 941 | * Reset the ownership and status for the receive ring side. |
---|
| 942 | * Hand all the receive queue to the NIC. |
---|
| 943 | */ |
---|
| 944 | |
---|
| 945 | static void velocity_rx_reset(struct velocity_info *vptr) |
---|
| 946 | { |
---|
| 947 | |
---|
| 948 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 949 | int i; |
---|
| 950 | |
---|
| 951 | //ptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0; |
---|
| 952 | |
---|
| 953 | /* |
---|
| 954 | * Init state, all RD entries belong to the NIC |
---|
| 955 | */ |
---|
| 956 | for (i = 0; i < vptr->options.numrx; ++i) |
---|
| 957 | vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC; |
---|
| 958 | |
---|
| 959 | writew(RX_DESC_DEF, ®s->RBRDU); |
---|
| 960 | writel(virt_to_le32desc(vptr->rd_ring), ®s->RDBaseLo); |
---|
| 961 | writew(0, ®s->RDIdx); |
---|
| 962 | writew(RX_DESC_DEF - 1, ®s->RDCSize); |
---|
| 963 | } |
---|
| 964 | |
---|
| 965 | /** |
---|
| 966 | * velocity_init_registers - initialise MAC registers |
---|
| 967 | * @vptr: velocity to init |
---|
| 968 | * @type: type of initialisation (hot or cold) |
---|
| 969 | * |
---|
| 970 | * Initialise the MAC on a reset or on first set up on the |
---|
| 971 | * hardware. |
---|
| 972 | */ |
---|
| 973 | |
---|
| 974 | static void velocity_init_registers(struct nic *nic, |
---|
| 975 | struct velocity_info *vptr, |
---|
| 976 | enum velocity_init_type type) |
---|
| 977 | { |
---|
| 978 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 979 | int i, mii_status; |
---|
| 980 | |
---|
| 981 | mac_wol_reset(regs); |
---|
| 982 | |
---|
| 983 | switch (type) { |
---|
| 984 | case VELOCITY_INIT_RESET: |
---|
| 985 | case VELOCITY_INIT_WOL: |
---|
| 986 | |
---|
| 987 | //netif_stop_queue(vptr->dev); |
---|
| 988 | |
---|
| 989 | /* |
---|
| 990 | * Reset RX to prevent RX pointer not on the 4X location |
---|
| 991 | */ |
---|
| 992 | velocity_rx_reset(vptr); |
---|
| 993 | mac_rx_queue_run(regs); |
---|
| 994 | mac_rx_queue_wake(regs); |
---|
| 995 | |
---|
| 996 | mii_status = velocity_get_opt_media_mode(vptr); |
---|
| 997 | |
---|
| 998 | if (velocity_set_media_mode(vptr, mii_status) != |
---|
| 999 | VELOCITY_LINK_CHANGE) { |
---|
| 1000 | velocity_print_link_status(vptr); |
---|
| 1001 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
---|
| 1002 | printf("Link Failed\n"); |
---|
| 1003 | // netif_wake_queue(vptr->dev); |
---|
| 1004 | } |
---|
| 1005 | |
---|
| 1006 | enable_flow_control_ability(vptr); |
---|
| 1007 | |
---|
| 1008 | mac_clear_isr(regs); |
---|
| 1009 | writel(CR0_STOP, ®s->CR0Clr); |
---|
| 1010 | //writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
---|
| 1011 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
---|
| 1012 | ®s->CR0Set); |
---|
| 1013 | break; |
---|
| 1014 | |
---|
| 1015 | case VELOCITY_INIT_COLD: |
---|
| 1016 | default: |
---|
| 1017 | /* |
---|
| 1018 | * Do reset |
---|
| 1019 | */ |
---|
| 1020 | velocity_soft_reset(vptr); |
---|
| 1021 | mdelay(5); |
---|
| 1022 | |
---|
| 1023 | mac_eeprom_reload(regs); |
---|
| 1024 | for (i = 0; i < 6; i++) { |
---|
| 1025 | writeb(nic->node_addr[i], &(regs->PAR[i])); |
---|
| 1026 | } |
---|
| 1027 | /* |
---|
| 1028 | * clear Pre_ACPI bit. |
---|
| 1029 | */ |
---|
| 1030 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); |
---|
| 1031 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); |
---|
| 1032 | mac_set_dma_length(regs, vptr->options.DMA_length); |
---|
| 1033 | |
---|
| 1034 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); |
---|
| 1035 | /* |
---|
| 1036 | * Back off algorithm use original IEEE standard |
---|
| 1037 | */ |
---|
| 1038 | BYTE_REG_BITS_SET(CFGB_OFSET, |
---|
| 1039 | (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | |
---|
| 1040 | CFGB_BAKOPT), ®s->CFGB); |
---|
| 1041 | |
---|
| 1042 | /* |
---|
| 1043 | * Init CAM filter |
---|
| 1044 | */ |
---|
| 1045 | velocity_init_cam_filter(vptr); |
---|
| 1046 | |
---|
| 1047 | /* |
---|
| 1048 | * Set packet filter: Receive directed and broadcast address |
---|
| 1049 | */ |
---|
| 1050 | //FIXME Multicast velocity_set_multi(nic); |
---|
| 1051 | |
---|
| 1052 | /* |
---|
| 1053 | * Enable MII auto-polling |
---|
| 1054 | */ |
---|
| 1055 | enable_mii_autopoll(regs); |
---|
| 1056 | |
---|
| 1057 | vptr->int_mask = INT_MASK_DEF; |
---|
| 1058 | |
---|
| 1059 | writel(virt_to_le32desc(vptr->rd_ring), ®s->RDBaseLo); |
---|
| 1060 | writew(vptr->options.numrx - 1, ®s->RDCSize); |
---|
| 1061 | mac_rx_queue_run(regs); |
---|
| 1062 | mac_rx_queue_wake(regs); |
---|
| 1063 | |
---|
| 1064 | writew(vptr->options.numtx - 1, ®s->TDCSize); |
---|
| 1065 | |
---|
| 1066 | // for (i = 0; i < vptr->num_txq; i++) { |
---|
| 1067 | writel(virt_to_le32desc(vptr->td_rings), |
---|
| 1068 | &(regs->TDBaseLo[0])); |
---|
| 1069 | mac_tx_queue_run(regs, 0); |
---|
| 1070 | // } |
---|
| 1071 | |
---|
| 1072 | init_flow_control_register(vptr); |
---|
| 1073 | |
---|
| 1074 | writel(CR0_STOP, ®s->CR0Clr); |
---|
| 1075 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
---|
| 1076 | ®s->CR0Set); |
---|
| 1077 | |
---|
| 1078 | mii_status = velocity_get_opt_media_mode(vptr); |
---|
| 1079 | // netif_stop_queue(vptr->dev); |
---|
| 1080 | |
---|
| 1081 | mii_init(vptr, mii_status); |
---|
| 1082 | |
---|
| 1083 | if (velocity_set_media_mode(vptr, mii_status) != |
---|
| 1084 | VELOCITY_LINK_CHANGE) { |
---|
| 1085 | velocity_print_link_status(vptr); |
---|
| 1086 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
---|
| 1087 | printf("Link Faaailll\n"); |
---|
| 1088 | // netif_wake_queue(vptr->dev); |
---|
| 1089 | } |
---|
| 1090 | |
---|
| 1091 | enable_flow_control_ability(vptr); |
---|
| 1092 | mac_hw_mibs_init(regs); |
---|
| 1093 | mac_write_int_mask(vptr->int_mask, regs); |
---|
| 1094 | mac_clear_isr(regs); |
---|
| 1095 | |
---|
| 1096 | |
---|
| 1097 | } |
---|
| 1098 | velocity_print_link_status(vptr); |
---|
| 1099 | } |
---|
| 1100 | |
---|
| 1101 | /** |
---|
| 1102 | * velocity_soft_reset - soft reset |
---|
| 1103 | * @vptr: velocity to reset |
---|
| 1104 | * |
---|
| 1105 | * Kick off a soft reset of the velocity adapter and then poll |
---|
| 1106 | * until the reset sequence has completed before returning. |
---|
| 1107 | */ |
---|
| 1108 | |
---|
| 1109 | static int velocity_soft_reset(struct velocity_info *vptr) |
---|
| 1110 | { |
---|
| 1111 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 1112 | unsigned int i = 0; |
---|
| 1113 | |
---|
| 1114 | writel(CR0_SFRST, ®s->CR0Set); |
---|
| 1115 | |
---|
| 1116 | for (i = 0; i < W_MAX_TIMEOUT; i++) { |
---|
| 1117 | udelay(5); |
---|
| 1118 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) |
---|
| 1119 | break; |
---|
| 1120 | } |
---|
| 1121 | |
---|
| 1122 | if (i == W_MAX_TIMEOUT) { |
---|
| 1123 | writel(CR0_FORSRST, ®s->CR0Set); |
---|
| 1124 | /* FIXME: PCI POSTING */ |
---|
| 1125 | /* delay 2ms */ |
---|
| 1126 | mdelay(2); |
---|
| 1127 | } |
---|
| 1128 | return 0; |
---|
| 1129 | } |
---|
| 1130 | |
---|
| 1131 | /** |
---|
| 1132 | * velocity_init_rings - set up DMA rings |
---|
| 1133 | * @vptr: Velocity to set up |
---|
| 1134 | * |
---|
| 1135 | * Allocate PCI mapped DMA rings for the receive and transmit layer |
---|
| 1136 | * to use. |
---|
| 1137 | */ |
---|
| 1138 | |
---|
| 1139 | static int velocity_init_rings(struct velocity_info *vptr) |
---|
| 1140 | { |
---|
| 1141 | |
---|
| 1142 | int idx; |
---|
| 1143 | |
---|
| 1144 | vptr->rd_curr = 0; |
---|
| 1145 | vptr->td_curr = 0; |
---|
| 1146 | memset(vptr->td_rings, 0, TX_DESC_DEF * sizeof(struct tx_desc)); |
---|
| 1147 | memset(vptr->rd_ring, 0, RX_DESC_DEF * sizeof(struct rx_desc)); |
---|
| 1148 | // memset(vptr->tx_buffs, 0, TX_DESC_DEF * PKT_BUF_SZ); |
---|
| 1149 | |
---|
| 1150 | |
---|
| 1151 | for (idx = 0; idx < RX_DESC_DEF; idx++) { |
---|
| 1152 | vptr->rd_ring[idx].rdesc0.RSR = 0; |
---|
| 1153 | vptr->rd_ring[idx].rdesc0.len = 0; |
---|
| 1154 | vptr->rd_ring[idx].rdesc0.reserved = 0; |
---|
| 1155 | vptr->rd_ring[idx].rdesc0.owner = 0; |
---|
| 1156 | vptr->rd_ring[idx].len = cpu_to_le32(vptr->rx_buf_sz); |
---|
| 1157 | vptr->rd_ring[idx].inten = 1; |
---|
| 1158 | vptr->rd_ring[idx].pa_low = |
---|
| 1159 | virt_to_bus(vptr->rxb + (RX_DESC_DEF * idx)); |
---|
| 1160 | vptr->rd_ring[idx].pa_high = 0; |
---|
| 1161 | vptr->rd_ring[idx].rdesc0.owner = OWNED_BY_NIC; |
---|
| 1162 | } |
---|
| 1163 | |
---|
| 1164 | /* for (i = 0; idx < TX_DESC_DEF; idx++ ) { |
---|
| 1165 | vptr->td_rings[idx].tdesc1.TCPLS = TCPLS_NORMAL; |
---|
| 1166 | vptr->td_rings[idx].tdesc1.TCR = TCR0_TIC; |
---|
| 1167 | vptr->td_rings[idx].td_buf[0].queue = 0; |
---|
| 1168 | vptr->td_rings[idx].tdesc0.owner = ~OWNED_BY_NIC; |
---|
| 1169 | vptr->td_rings[idx].tdesc0.pktsize = 0; |
---|
| 1170 | vptr->td_rings[idx].td_buf[0].pa_low = cpu_to_le32(virt_to_bus(vptr->txb + (idx * PKT_BUF_SZ))); |
---|
| 1171 | vptr->td_rings[idx].td_buf[0].pa_high = 0; |
---|
| 1172 | vptr->td_rings[idx].td_buf[0].bufsize = 0; |
---|
| 1173 | vptr->td_rings[idx].tdesc1.CMDZ = 2; |
---|
| 1174 | } |
---|
| 1175 | */ |
---|
| 1176 | return 0; |
---|
| 1177 | } |
---|
| 1178 | |
---|
| 1179 | /** |
---|
| 1180 | * velocity_open - interface activation callback |
---|
| 1181 | * @dev: network layer device to open |
---|
| 1182 | * |
---|
| 1183 | * Called when the network layer brings the interface up. Returns |
---|
| 1184 | * a negative posix error code on failure, or zero on success. |
---|
| 1185 | * |
---|
| 1186 | * All the ring allocation and set up is done on open for this |
---|
| 1187 | * adapter to minimise memory usage when inactive |
---|
| 1188 | */ |
---|
| 1189 | |
---|
| 1190 | #define PCI_BYTE_REG_BITS_ON(x,i,p) do{\ |
---|
| 1191 | u8 byReg;\ |
---|
| 1192 | pci_read_config_byte((p), (i), &(byReg));\ |
---|
| 1193 | (byReg) |= (x);\ |
---|
| 1194 | pci_write_config_byte((p), (i), (byReg));\ |
---|
| 1195 | } while (0) |
---|
| 1196 | |
---|
| 1197 | // |
---|
| 1198 | // Registers in the PCI configuration space |
---|
| 1199 | // |
---|
| 1200 | #define PCI_REG_COMMAND 0x04 // |
---|
| 1201 | #define PCI_REG_MODE0 0x60 // |
---|
| 1202 | #define PCI_REG_MODE1 0x61 // |
---|
| 1203 | #define PCI_REG_MODE2 0x62 // |
---|
| 1204 | #define PCI_REG_MODE3 0x63 // |
---|
| 1205 | #define PCI_REG_DELAY_TIMER 0x64 // |
---|
| 1206 | |
---|
| 1207 | // Bits in the (MODE2, 0x62) register |
---|
| 1208 | // |
---|
| 1209 | #define MODE2_PCEROPT 0x80 // take PCI bus ERror as a fatal and shutdown from software control |
---|
| 1210 | #define MODE2_TXQ16 0x40 // TX write-back Queue control. 0->32 entries available in Tx write-back queue, 1->16 entries |
---|
| 1211 | #define MODE2_TXPOST 0x08 // (Not support in VT3119) |
---|
| 1212 | #define MODE2_AUTOOPT 0x04 // (VT3119 GHCI without such behavior) |
---|
| 1213 | #define MODE2_MODE10T 0x02 // used to control tx Threshold for 10M case |
---|
| 1214 | #define MODE2_TCPLSOPT 0x01 // TCP large send field update disable, hardware will not update related fields, leave it to software. |
---|
| 1215 | |
---|
| 1216 | // |
---|
| 1217 | // Bits in the MODE3 register |
---|
| 1218 | // |
---|
| 1219 | #define MODE3_MIION 0x04 // MII symbol codine error detect enable ?? |
---|
| 1220 | |
---|
| 1221 | // Bits in the (COMMAND, 0x04) register |
---|
| 1222 | #define COMMAND_BUSM 0x04 |
---|
| 1223 | #define COMMAND_WAIT 0x80 |
---|
| 1224 | static int velocity_open(struct nic *nic, struct pci_device *pci __unused) |
---|
| 1225 | { |
---|
| 1226 | int ret; |
---|
| 1227 | |
---|
| 1228 | u8 diff; |
---|
| 1229 | u32 TxPhyAddr, RxPhyAddr; |
---|
| 1230 | u32 TxBufPhyAddr, RxBufPhyAddr; |
---|
| 1231 | vptr->TxDescArrays = tx_ring; |
---|
| 1232 | if (vptr->TxDescArrays == 0) |
---|
| 1233 | printf("Allot Error"); |
---|
| 1234 | |
---|
| 1235 | /* Tx Descriptor needs 64 bytes alignment; */ |
---|
| 1236 | TxPhyAddr = virt_to_bus(vptr->TxDescArrays); |
---|
| 1237 | printf("Unaligned Address : %X\n", TxPhyAddr); |
---|
| 1238 | diff = 64 - (TxPhyAddr - ((TxPhyAddr >> 6) << 6)); |
---|
| 1239 | TxPhyAddr += diff; |
---|
| 1240 | vptr->td_rings = (struct tx_desc *) (vptr->TxDescArrays + diff); |
---|
| 1241 | |
---|
| 1242 | printf("Aligned Address: %lX\n", virt_to_bus(vptr->td_rings)); |
---|
| 1243 | vptr->tx_buffs = txb; |
---|
| 1244 | /* Rx Buffer needs 64 bytes alignment; */ |
---|
| 1245 | TxBufPhyAddr = virt_to_bus(vptr->tx_buffs); |
---|
| 1246 | diff = 64 - (TxBufPhyAddr - ((TxBufPhyAddr >> 6) << 6)); |
---|
| 1247 | TxBufPhyAddr += diff; |
---|
| 1248 | vptr->txb = (unsigned char *) (vptr->tx_buffs + diff); |
---|
| 1249 | |
---|
| 1250 | vptr->RxDescArrays = rx_ring; |
---|
| 1251 | /* Rx Descriptor needs 64 bytes alignment; */ |
---|
| 1252 | RxPhyAddr = virt_to_bus(vptr->RxDescArrays); |
---|
| 1253 | diff = 64 - (RxPhyAddr - ((RxPhyAddr >> 6) << 6)); |
---|
| 1254 | RxPhyAddr += diff; |
---|
| 1255 | vptr->rd_ring = (struct rx_desc *) (vptr->RxDescArrays + diff); |
---|
| 1256 | |
---|
| 1257 | vptr->rx_buffs = rxb; |
---|
| 1258 | /* Rx Buffer needs 64 bytes alignment; */ |
---|
| 1259 | RxBufPhyAddr = virt_to_bus(vptr->rx_buffs); |
---|
| 1260 | diff = 64 - (RxBufPhyAddr - ((RxBufPhyAddr >> 6) << 6)); |
---|
| 1261 | RxBufPhyAddr += diff; |
---|
| 1262 | vptr->rxb = (unsigned char *) (vptr->rx_buffs + diff); |
---|
| 1263 | |
---|
| 1264 | if (vptr->RxDescArrays == NULL || vptr->RxDescArrays == NULL) { |
---|
| 1265 | printf("Allocate tx_ring or rd_ring failed\n"); |
---|
| 1266 | return 0; |
---|
| 1267 | } |
---|
| 1268 | |
---|
| 1269 | vptr->rx_buf_sz = PKT_BUF_SZ; |
---|
| 1270 | /* |
---|
| 1271 | // turn this on to avoid retry forever |
---|
| 1272 | PCI_BYTE_REG_BITS_ON(MODE2_PCEROPT, PCI_REG_MODE2, pci); |
---|
| 1273 | // for some legacy BIOS and OS don't open BusM |
---|
| 1274 | // bit in PCI configuration space. So, turn it on. |
---|
| 1275 | PCI_BYTE_REG_BITS_ON(COMMAND_BUSM, PCI_REG_COMMAND, pci); |
---|
| 1276 | // turn this on to detect MII coding error |
---|
| 1277 | PCI_BYTE_REG_BITS_ON(MODE3_MIION, PCI_REG_MODE3, pci); |
---|
| 1278 | */ |
---|
| 1279 | ret = velocity_init_rings(vptr); |
---|
| 1280 | |
---|
| 1281 | /* Ensure chip is running */ |
---|
| 1282 | //FIXME: pci_set_power_state(vptr->pdev, PCI_D0); |
---|
| 1283 | |
---|
| 1284 | velocity_init_registers(nic, vptr, VELOCITY_INIT_COLD); |
---|
| 1285 | mac_write_int_mask(0, vptr->mac_regs); |
---|
| 1286 | // _int(vptr->mac_regs); |
---|
| 1287 | //mac_enable_int(vptr->mac_regs); |
---|
| 1288 | |
---|
| 1289 | vptr->flags |= VELOCITY_FLAGS_OPENED; |
---|
| 1290 | return 1; |
---|
| 1291 | |
---|
| 1292 | } |
---|
| 1293 | |
---|
| 1294 | /* |
---|
| 1295 | * MII access , media link mode setting functions |
---|
| 1296 | */ |
---|
| 1297 | |
---|
| 1298 | |
---|
| 1299 | /** |
---|
| 1300 | * mii_init - set up MII |
---|
| 1301 | * @vptr: velocity adapter |
---|
| 1302 | * @mii_status: links tatus |
---|
| 1303 | * |
---|
| 1304 | * Set up the PHY for the current link state. |
---|
| 1305 | */ |
---|
| 1306 | |
---|
| 1307 | static void mii_init(struct velocity_info *vptr, u32 mii_status __unused) |
---|
| 1308 | { |
---|
| 1309 | u16 BMCR; |
---|
| 1310 | |
---|
| 1311 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { |
---|
| 1312 | case PHYID_CICADA_CS8201: |
---|
| 1313 | /* |
---|
| 1314 | * Reset to hardware default |
---|
| 1315 | */ |
---|
| 1316 | MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, |
---|
| 1317 | vptr->mac_regs); |
---|
| 1318 | /* |
---|
| 1319 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
---|
| 1320 | * off it in NWay-forced half mode for NWay-forced v.s. |
---|
| 1321 | * legacy-forced issue. |
---|
| 1322 | */ |
---|
| 1323 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 1324 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, |
---|
| 1325 | vptr->mac_regs); |
---|
| 1326 | else |
---|
| 1327 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, |
---|
| 1328 | vptr->mac_regs); |
---|
| 1329 | /* |
---|
| 1330 | * Turn on Link/Activity LED enable bit for CIS8201 |
---|
| 1331 | */ |
---|
| 1332 | MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs); |
---|
| 1333 | break; |
---|
| 1334 | case PHYID_VT3216_32BIT: |
---|
| 1335 | case PHYID_VT3216_64BIT: |
---|
| 1336 | /* |
---|
| 1337 | * Reset to hardware default |
---|
| 1338 | */ |
---|
| 1339 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, |
---|
| 1340 | vptr->mac_regs); |
---|
| 1341 | /* |
---|
| 1342 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
---|
| 1343 | * off it in NWay-forced half mode for NWay-forced v.s. |
---|
| 1344 | * legacy-forced issue |
---|
| 1345 | */ |
---|
| 1346 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 1347 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, |
---|
| 1348 | vptr->mac_regs); |
---|
| 1349 | else |
---|
| 1350 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, |
---|
| 1351 | vptr->mac_regs); |
---|
| 1352 | break; |
---|
| 1353 | |
---|
| 1354 | case PHYID_MARVELL_1000: |
---|
| 1355 | case PHYID_MARVELL_1000S: |
---|
| 1356 | /* |
---|
| 1357 | * Assert CRS on Transmit |
---|
| 1358 | */ |
---|
| 1359 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); |
---|
| 1360 | /* |
---|
| 1361 | * Reset to hardware default |
---|
| 1362 | */ |
---|
| 1363 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, |
---|
| 1364 | vptr->mac_regs); |
---|
| 1365 | break; |
---|
| 1366 | default: |
---|
| 1367 | ; |
---|
| 1368 | } |
---|
| 1369 | velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR); |
---|
| 1370 | if (BMCR & BMCR_ISO) { |
---|
| 1371 | BMCR &= ~BMCR_ISO; |
---|
| 1372 | velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR); |
---|
| 1373 | } |
---|
| 1374 | } |
---|
| 1375 | |
---|
| 1376 | /** |
---|
| 1377 | * safe_disable_mii_autopoll - autopoll off |
---|
| 1378 | * @regs: velocity registers |
---|
| 1379 | * |
---|
| 1380 | * Turn off the autopoll and wait for it to disable on the chip |
---|
| 1381 | */ |
---|
| 1382 | |
---|
| 1383 | static void safe_disable_mii_autopoll(struct mac_regs *regs) |
---|
| 1384 | { |
---|
| 1385 | u16 ww; |
---|
| 1386 | |
---|
| 1387 | /* turn off MAUTO */ |
---|
| 1388 | writeb(0, ®s->MIICR); |
---|
| 1389 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
---|
| 1390 | udelay(1); |
---|
| 1391 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
---|
| 1392 | break; |
---|
| 1393 | } |
---|
| 1394 | } |
---|
| 1395 | |
---|
| 1396 | /** |
---|
| 1397 | * enable_mii_autopoll - turn on autopolling |
---|
| 1398 | * @regs: velocity registers |
---|
| 1399 | * |
---|
| 1400 | * Enable the MII link status autopoll feature on the Velocity |
---|
| 1401 | * hardware. Wait for it to enable. |
---|
| 1402 | */ |
---|
| 1403 | |
---|
| 1404 | static void enable_mii_autopoll(struct mac_regs *regs) |
---|
| 1405 | { |
---|
| 1406 | unsigned int ii; |
---|
| 1407 | |
---|
| 1408 | writeb(0, &(regs->MIICR)); |
---|
| 1409 | writeb(MIIADR_SWMPL, ®s->MIIADR); |
---|
| 1410 | |
---|
| 1411 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
---|
| 1412 | udelay(1); |
---|
| 1413 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
---|
| 1414 | break; |
---|
| 1415 | } |
---|
| 1416 | |
---|
| 1417 | writeb(MIICR_MAUTO, ®s->MIICR); |
---|
| 1418 | |
---|
| 1419 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
---|
| 1420 | udelay(1); |
---|
| 1421 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
---|
| 1422 | break; |
---|
| 1423 | } |
---|
| 1424 | |
---|
| 1425 | } |
---|
| 1426 | |
---|
| 1427 | /** |
---|
| 1428 | * velocity_mii_read - read MII data |
---|
| 1429 | * @regs: velocity registers |
---|
| 1430 | * @index: MII register index |
---|
| 1431 | * @data: buffer for received data |
---|
| 1432 | * |
---|
| 1433 | * Perform a single read of an MII 16bit register. Returns zero |
---|
| 1434 | * on success or -ETIMEDOUT if the PHY did not respond. |
---|
| 1435 | */ |
---|
| 1436 | |
---|
| 1437 | static int velocity_mii_read(struct mac_regs *regs, u8 index, u16 * data) |
---|
| 1438 | { |
---|
| 1439 | u16 ww; |
---|
| 1440 | |
---|
| 1441 | /* |
---|
| 1442 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
---|
| 1443 | */ |
---|
| 1444 | safe_disable_mii_autopoll(regs); |
---|
| 1445 | |
---|
| 1446 | writeb(index, ®s->MIIADR); |
---|
| 1447 | |
---|
| 1448 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); |
---|
| 1449 | |
---|
| 1450 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
---|
| 1451 | if (!(readb(®s->MIICR) & MIICR_RCMD)) |
---|
| 1452 | break; |
---|
| 1453 | } |
---|
| 1454 | |
---|
| 1455 | *data = readw(®s->MIIDATA); |
---|
| 1456 | |
---|
| 1457 | enable_mii_autopoll(regs); |
---|
| 1458 | if (ww == W_MAX_TIMEOUT) |
---|
| 1459 | return -1; |
---|
| 1460 | return 0; |
---|
| 1461 | } |
---|
| 1462 | |
---|
| 1463 | /** |
---|
| 1464 | * velocity_mii_write - write MII data |
---|
| 1465 | * @regs: velocity registers |
---|
| 1466 | * @index: MII register index |
---|
| 1467 | * @data: 16bit data for the MII register |
---|
| 1468 | * |
---|
| 1469 | * Perform a single write to an MII 16bit register. Returns zero |
---|
| 1470 | * on success or -ETIMEDOUT if the PHY did not respond. |
---|
| 1471 | */ |
---|
| 1472 | |
---|
| 1473 | static int velocity_mii_write(struct mac_regs *regs, u8 mii_addr, u16 data) |
---|
| 1474 | { |
---|
| 1475 | u16 ww; |
---|
| 1476 | |
---|
| 1477 | /* |
---|
| 1478 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
---|
| 1479 | */ |
---|
| 1480 | safe_disable_mii_autopoll(regs); |
---|
| 1481 | |
---|
| 1482 | /* MII reg offset */ |
---|
| 1483 | writeb(mii_addr, ®s->MIIADR); |
---|
| 1484 | /* set MII data */ |
---|
| 1485 | writew(data, ®s->MIIDATA); |
---|
| 1486 | |
---|
| 1487 | /* turn on MIICR_WCMD */ |
---|
| 1488 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); |
---|
| 1489 | |
---|
| 1490 | /* W_MAX_TIMEOUT is the timeout period */ |
---|
| 1491 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
---|
| 1492 | udelay(5); |
---|
| 1493 | if (!(readb(®s->MIICR) & MIICR_WCMD)) |
---|
| 1494 | break; |
---|
| 1495 | } |
---|
| 1496 | enable_mii_autopoll(regs); |
---|
| 1497 | |
---|
| 1498 | if (ww == W_MAX_TIMEOUT) |
---|
| 1499 | return -1; |
---|
| 1500 | return 0; |
---|
| 1501 | } |
---|
| 1502 | |
---|
| 1503 | /** |
---|
| 1504 | * velocity_get_opt_media_mode - get media selection |
---|
| 1505 | * @vptr: velocity adapter |
---|
| 1506 | * |
---|
| 1507 | * Get the media mode stored in EEPROM or module options and load |
---|
| 1508 | * mii_status accordingly. The requested link state information |
---|
| 1509 | * is also returned. |
---|
| 1510 | */ |
---|
| 1511 | |
---|
| 1512 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
---|
| 1513 | { |
---|
| 1514 | u32 status = 0; |
---|
| 1515 | |
---|
| 1516 | switch (vptr->options.spd_dpx) { |
---|
| 1517 | case SPD_DPX_AUTO: |
---|
| 1518 | status = VELOCITY_AUTONEG_ENABLE; |
---|
| 1519 | break; |
---|
| 1520 | case SPD_DPX_100_FULL: |
---|
| 1521 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; |
---|
| 1522 | break; |
---|
| 1523 | case SPD_DPX_10_FULL: |
---|
| 1524 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; |
---|
| 1525 | break; |
---|
| 1526 | case SPD_DPX_100_HALF: |
---|
| 1527 | status = VELOCITY_SPEED_100; |
---|
| 1528 | break; |
---|
| 1529 | case SPD_DPX_10_HALF: |
---|
| 1530 | status = VELOCITY_SPEED_10; |
---|
| 1531 | break; |
---|
| 1532 | } |
---|
| 1533 | vptr->mii_status = status; |
---|
| 1534 | return status; |
---|
| 1535 | } |
---|
| 1536 | |
---|
| 1537 | /** |
---|
| 1538 | * mii_set_auto_on - autonegotiate on |
---|
| 1539 | * @vptr: velocity |
---|
| 1540 | * |
---|
| 1541 | * Enable autonegotation on this interface |
---|
| 1542 | */ |
---|
| 1543 | |
---|
| 1544 | static void mii_set_auto_on(struct velocity_info *vptr) |
---|
| 1545 | { |
---|
| 1546 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs)) |
---|
| 1547 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); |
---|
| 1548 | else |
---|
| 1549 | MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); |
---|
| 1550 | } |
---|
| 1551 | |
---|
| 1552 | |
---|
| 1553 | /* |
---|
| 1554 | static void mii_set_auto_off(struct velocity_info * vptr) |
---|
| 1555 | { |
---|
| 1556 | MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); |
---|
| 1557 | } |
---|
| 1558 | */ |
---|
| 1559 | |
---|
| 1560 | /** |
---|
| 1561 | * set_mii_flow_control - flow control setup |
---|
| 1562 | * @vptr: velocity interface |
---|
| 1563 | * |
---|
| 1564 | * Set up the flow control on this interface according to |
---|
| 1565 | * the supplied user/eeprom options. |
---|
| 1566 | */ |
---|
| 1567 | |
---|
| 1568 | static void set_mii_flow_control(struct velocity_info *vptr) |
---|
| 1569 | { |
---|
| 1570 | /*Enable or Disable PAUSE in ANAR */ |
---|
| 1571 | switch (vptr->options.flow_cntl) { |
---|
| 1572 | case FLOW_CNTL_TX: |
---|
| 1573 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1574 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1575 | break; |
---|
| 1576 | |
---|
| 1577 | case FLOW_CNTL_RX: |
---|
| 1578 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1579 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1580 | break; |
---|
| 1581 | |
---|
| 1582 | case FLOW_CNTL_TX_RX: |
---|
| 1583 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1584 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1585 | break; |
---|
| 1586 | |
---|
| 1587 | case FLOW_CNTL_DISABLE: |
---|
| 1588 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
---|
| 1589 | MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, |
---|
| 1590 | vptr->mac_regs); |
---|
| 1591 | break; |
---|
| 1592 | default: |
---|
| 1593 | break; |
---|
| 1594 | } |
---|
| 1595 | } |
---|
| 1596 | |
---|
| 1597 | /** |
---|
| 1598 | * velocity_set_media_mode - set media mode |
---|
| 1599 | * @mii_status: old MII link state |
---|
| 1600 | * |
---|
| 1601 | * Check the media link state and configure the flow control |
---|
| 1602 | * PHY and also velocity hardware setup accordingly. In particular |
---|
| 1603 | * we need to set up CD polling and frame bursting. |
---|
| 1604 | */ |
---|
| 1605 | |
---|
| 1606 | static int velocity_set_media_mode(struct velocity_info *vptr, |
---|
| 1607 | u32 mii_status) |
---|
| 1608 | { |
---|
| 1609 | u32 curr_status; |
---|
| 1610 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 1611 | |
---|
| 1612 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); |
---|
| 1613 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); |
---|
| 1614 | |
---|
| 1615 | /* Set mii link status */ |
---|
| 1616 | set_mii_flow_control(vptr); |
---|
| 1617 | |
---|
| 1618 | /* |
---|
| 1619 | Check if new status is consisent with current status |
---|
| 1620 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) |
---|
| 1621 | || (mii_status==curr_status)) { |
---|
| 1622 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); |
---|
| 1623 | vptr->mii_status=check_connection_type(vptr->mac_regs); |
---|
| 1624 | printf(MSG_LEVEL_INFO, "Velocity link no change\n"); |
---|
| 1625 | return 0; |
---|
| 1626 | } |
---|
| 1627 | */ |
---|
| 1628 | |
---|
| 1629 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) { |
---|
| 1630 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, |
---|
| 1631 | vptr->mac_regs); |
---|
| 1632 | } |
---|
| 1633 | |
---|
| 1634 | /* |
---|
| 1635 | * If connection type is AUTO |
---|
| 1636 | */ |
---|
| 1637 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { |
---|
| 1638 | printf("Velocity is AUTO mode\n"); |
---|
| 1639 | /* clear force MAC mode bit */ |
---|
| 1640 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); |
---|
| 1641 | /* set duplex mode of MAC according to duplex mode of MII */ |
---|
| 1642 | MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, |
---|
| 1643 | MII_REG_ANAR, vptr->mac_regs); |
---|
| 1644 | MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, |
---|
| 1645 | MII_REG_G1000CR, vptr->mac_regs); |
---|
| 1646 | MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, |
---|
| 1647 | vptr->mac_regs); |
---|
| 1648 | |
---|
| 1649 | /* enable AUTO-NEGO mode */ |
---|
| 1650 | mii_set_auto_on(vptr); |
---|
| 1651 | } else { |
---|
| 1652 | u16 ANAR; |
---|
| 1653 | u8 CHIPGCR; |
---|
| 1654 | |
---|
| 1655 | /* |
---|
| 1656 | * 1. if it's 3119, disable frame bursting in halfduplex mode |
---|
| 1657 | * and enable it in fullduplex mode |
---|
| 1658 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR |
---|
| 1659 | * 3. only enable CD heart beat counter in 10HD mode |
---|
| 1660 | */ |
---|
| 1661 | |
---|
| 1662 | /* set force MAC mode bit */ |
---|
| 1663 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); |
---|
| 1664 | |
---|
| 1665 | CHIPGCR = readb(®s->CHIPGCR); |
---|
| 1666 | CHIPGCR &= ~CHIPGCR_FCGMII; |
---|
| 1667 | |
---|
| 1668 | if (mii_status & VELOCITY_DUPLEX_FULL) { |
---|
| 1669 | CHIPGCR |= CHIPGCR_FCFDX; |
---|
| 1670 | writeb(CHIPGCR, ®s->CHIPGCR); |
---|
| 1671 | printf |
---|
| 1672 | ("DEBUG: set Velocity to forced full mode\n"); |
---|
| 1673 | if (vptr->rev_id < REV_ID_VT3216_A0) |
---|
| 1674 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); |
---|
| 1675 | } else { |
---|
| 1676 | CHIPGCR &= ~CHIPGCR_FCFDX; |
---|
| 1677 | printf |
---|
| 1678 | ("DEBUG: set Velocity to forced half mode\n"); |
---|
| 1679 | writeb(CHIPGCR, ®s->CHIPGCR); |
---|
| 1680 | if (vptr->rev_id < REV_ID_VT3216_A0) |
---|
| 1681 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
---|
| 1682 | } |
---|
| 1683 | |
---|
| 1684 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, |
---|
| 1685 | MII_REG_G1000CR, vptr->mac_regs); |
---|
| 1686 | |
---|
| 1687 | if (!(mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 1688 | && (mii_status & VELOCITY_SPEED_10)) { |
---|
| 1689 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); |
---|
| 1690 | } else { |
---|
| 1691 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); |
---|
| 1692 | } |
---|
| 1693 | /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */ |
---|
| 1694 | velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR); |
---|
| 1695 | ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)); |
---|
| 1696 | if (mii_status & VELOCITY_SPEED_100) { |
---|
| 1697 | if (mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 1698 | ANAR |= ANAR_TXFD; |
---|
| 1699 | else |
---|
| 1700 | ANAR |= ANAR_TX; |
---|
| 1701 | } else { |
---|
| 1702 | if (mii_status & VELOCITY_DUPLEX_FULL) |
---|
| 1703 | ANAR |= ANAR_10FD; |
---|
| 1704 | else |
---|
| 1705 | ANAR |= ANAR_10; |
---|
| 1706 | } |
---|
| 1707 | velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR); |
---|
| 1708 | /* enable AUTO-NEGO mode */ |
---|
| 1709 | mii_set_auto_on(vptr); |
---|
| 1710 | /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */ |
---|
| 1711 | } |
---|
| 1712 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ |
---|
| 1713 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ |
---|
| 1714 | return VELOCITY_LINK_CHANGE; |
---|
| 1715 | } |
---|
| 1716 | |
---|
| 1717 | /** |
---|
| 1718 | * mii_check_media_mode - check media state |
---|
| 1719 | * @regs: velocity registers |
---|
| 1720 | * |
---|
| 1721 | * Check the current MII status and determine the link status |
---|
| 1722 | * accordingly |
---|
| 1723 | */ |
---|
| 1724 | |
---|
| 1725 | static u32 mii_check_media_mode(struct mac_regs *regs) |
---|
| 1726 | { |
---|
| 1727 | u32 status = 0; |
---|
| 1728 | u16 ANAR; |
---|
| 1729 | |
---|
| 1730 | if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs)) |
---|
| 1731 | status |= VELOCITY_LINK_FAIL; |
---|
| 1732 | |
---|
| 1733 | if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs)) |
---|
| 1734 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; |
---|
| 1735 | else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs)) |
---|
| 1736 | status |= (VELOCITY_SPEED_1000); |
---|
| 1737 | else { |
---|
| 1738 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
---|
| 1739 | if (ANAR & ANAR_TXFD) |
---|
| 1740 | status |= |
---|
| 1741 | (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); |
---|
| 1742 | else if (ANAR & ANAR_TX) |
---|
| 1743 | status |= VELOCITY_SPEED_100; |
---|
| 1744 | else if (ANAR & ANAR_10FD) |
---|
| 1745 | status |= |
---|
| 1746 | (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); |
---|
| 1747 | else |
---|
| 1748 | status |= (VELOCITY_SPEED_10); |
---|
| 1749 | } |
---|
| 1750 | |
---|
| 1751 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
---|
| 1752 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
---|
| 1753 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
---|
| 1754 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
---|
| 1755 | if (MII_REG_BITS_IS_ON |
---|
| 1756 | (G1000CR_1000 | G1000CR_1000FD, |
---|
| 1757 | MII_REG_G1000CR, regs)) |
---|
| 1758 | status |= VELOCITY_AUTONEG_ENABLE; |
---|
| 1759 | } |
---|
| 1760 | } |
---|
| 1761 | |
---|
| 1762 | return status; |
---|
| 1763 | } |
---|
| 1764 | |
---|
| 1765 | static u32 check_connection_type(struct mac_regs *regs) |
---|
| 1766 | { |
---|
| 1767 | u32 status = 0; |
---|
| 1768 | u8 PHYSR0; |
---|
| 1769 | u16 ANAR; |
---|
| 1770 | PHYSR0 = readb(®s->PHYSR0); |
---|
| 1771 | |
---|
| 1772 | /* |
---|
| 1773 | if (!(PHYSR0 & PHYSR0_LINKGD)) |
---|
| 1774 | status|=VELOCITY_LINK_FAIL; |
---|
| 1775 | */ |
---|
| 1776 | |
---|
| 1777 | if (PHYSR0 & PHYSR0_FDPX) |
---|
| 1778 | status |= VELOCITY_DUPLEX_FULL; |
---|
| 1779 | |
---|
| 1780 | if (PHYSR0 & PHYSR0_SPDG) |
---|
| 1781 | status |= VELOCITY_SPEED_1000; |
---|
| 1782 | if (PHYSR0 & PHYSR0_SPD10) |
---|
| 1783 | status |= VELOCITY_SPEED_10; |
---|
| 1784 | else |
---|
| 1785 | status |= VELOCITY_SPEED_100; |
---|
| 1786 | |
---|
| 1787 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
---|
| 1788 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
---|
| 1789 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
---|
| 1790 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
---|
| 1791 | if (MII_REG_BITS_IS_ON |
---|
| 1792 | (G1000CR_1000 | G1000CR_1000FD, |
---|
| 1793 | MII_REG_G1000CR, regs)) |
---|
| 1794 | status |= VELOCITY_AUTONEG_ENABLE; |
---|
| 1795 | } |
---|
| 1796 | } |
---|
| 1797 | |
---|
| 1798 | return status; |
---|
| 1799 | } |
---|
| 1800 | |
---|
| 1801 | /** |
---|
| 1802 | * enable_flow_control_ability - flow control |
---|
| 1803 | * @vptr: veloity to configure |
---|
| 1804 | * |
---|
| 1805 | * Set up flow control according to the flow control options |
---|
| 1806 | * determined by the eeprom/configuration. |
---|
| 1807 | */ |
---|
| 1808 | |
---|
| 1809 | static void enable_flow_control_ability(struct velocity_info *vptr) |
---|
| 1810 | { |
---|
| 1811 | |
---|
| 1812 | struct mac_regs *regs = vptr->mac_regs; |
---|
| 1813 | |
---|
| 1814 | switch (vptr->options.flow_cntl) { |
---|
| 1815 | |
---|
| 1816 | case FLOW_CNTL_DEFAULT: |
---|
| 1817 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) |
---|
| 1818 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
---|
| 1819 | else |
---|
| 1820 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
---|
| 1821 | |
---|
| 1822 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) |
---|
| 1823 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
---|
| 1824 | else |
---|
| 1825 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
---|
| 1826 | break; |
---|
| 1827 | |
---|
| 1828 | case FLOW_CNTL_TX: |
---|
| 1829 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
---|
| 1830 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
---|
| 1831 | break; |
---|
| 1832 | |
---|
| 1833 | case FLOW_CNTL_RX: |
---|
| 1834 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
---|
| 1835 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
---|
| 1836 | break; |
---|
| 1837 | |
---|
| 1838 | case FLOW_CNTL_TX_RX: |
---|
| 1839 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
---|
| 1840 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
---|
| 1841 | break; |
---|
| 1842 | |
---|
| 1843 | case FLOW_CNTL_DISABLE: |
---|
| 1844 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
---|
| 1845 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
---|
| 1846 | break; |
---|
| 1847 | |
---|
| 1848 | default: |
---|
| 1849 | break; |
---|
| 1850 | } |
---|
| 1851 | |
---|
| 1852 | } |
---|
| 1853 | |
---|
| 1854 | /* FIXME: Move to pci.c */ |
---|
| 1855 | /** |
---|
| 1856 | * pci_set_power_state - Set the power state of a PCI device |
---|
| 1857 | * @dev: PCI device to be suspended |
---|
| 1858 | * @state: Power state we're entering |
---|
| 1859 | * |
---|
| 1860 | * Transition a device to a new power state, using the Power Management |
---|
| 1861 | * Capabilities in the device's config space. |
---|
| 1862 | * |
---|
| 1863 | * RETURN VALUE: |
---|
| 1864 | * -EINVAL if trying to enter a lower state than we're already in. |
---|
| 1865 | * 0 if we're already in the requested state. |
---|
| 1866 | * -EIO if device does not support PCI PM. |
---|
| 1867 | * 0 if we can successfully change the power state. |
---|
| 1868 | */ |
---|
| 1869 | |
---|
| 1870 | int pci_set_power_state(struct pci_device *dev, int state) |
---|
| 1871 | { |
---|
| 1872 | int pm; |
---|
| 1873 | u16 pmcsr; |
---|
| 1874 | int current_state = 0; |
---|
| 1875 | |
---|
| 1876 | /* bound the state we're entering */ |
---|
| 1877 | if (state > 3) |
---|
| 1878 | state = 3; |
---|
| 1879 | |
---|
| 1880 | /* Validate current state: |
---|
| 1881 | * Can enter D0 from any state, but if we can only go deeper |
---|
| 1882 | * to sleep if we're already in a low power state |
---|
| 1883 | */ |
---|
| 1884 | if (state > 0 && current_state > state) |
---|
| 1885 | return -1; |
---|
| 1886 | else if (current_state == state) |
---|
| 1887 | return 0; /* we're already there */ |
---|
| 1888 | |
---|
| 1889 | /* find PCI PM capability in list */ |
---|
| 1890 | pm = pci_find_capability(dev, PCI_CAP_ID_PM); |
---|
| 1891 | |
---|
| 1892 | /* abort if the device doesn't support PM capabilities */ |
---|
| 1893 | if (!pm) |
---|
| 1894 | return -2; |
---|
| 1895 | |
---|
| 1896 | /* check if this device supports the desired state */ |
---|
| 1897 | if (state == 1 || state == 2) { |
---|
| 1898 | u16 pmc; |
---|
| 1899 | pci_read_config_word(dev, pm + PCI_PM_PMC, &pmc); |
---|
| 1900 | if (state == 1 && !(pmc & PCI_PM_CAP_D1)) |
---|
| 1901 | return -2; |
---|
| 1902 | else if (state == 2 && !(pmc & PCI_PM_CAP_D2)) |
---|
| 1903 | return -2; |
---|
| 1904 | } |
---|
| 1905 | |
---|
| 1906 | /* If we're in D3, force entire word to 0. |
---|
| 1907 | * This doesn't affect PME_Status, disables PME_En, and |
---|
| 1908 | * sets PowerState to 0. |
---|
| 1909 | */ |
---|
| 1910 | if (current_state >= 3) |
---|
| 1911 | pmcsr = 0; |
---|
| 1912 | else { |
---|
| 1913 | pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); |
---|
| 1914 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
---|
| 1915 | pmcsr |= state; |
---|
| 1916 | } |
---|
| 1917 | |
---|
| 1918 | /* enter specified state */ |
---|
| 1919 | pci_write_config_word(dev, pm + PCI_PM_CTRL, pmcsr); |
---|
| 1920 | |
---|
| 1921 | /* Mandatory power management transition delays */ |
---|
| 1922 | /* see PCI PM 1.1 5.6.1 table 18 */ |
---|
| 1923 | if (state == 3 || current_state == 3) |
---|
| 1924 | mdelay(10); |
---|
| 1925 | else if (state == 2 || current_state == 2) |
---|
| 1926 | udelay(200); |
---|
| 1927 | current_state = state; |
---|
| 1928 | |
---|
| 1929 | return 0; |
---|
| 1930 | } |
---|
| 1931 | |
---|
| 1932 | static struct pci_device_id velocity_nics[] = { |
---|
| 1933 | PCI_ROM(0x1106, 0x3119, "via-velocity", "VIA Networking Velocity Family Gigabit Ethernet Adapter", 0), |
---|
| 1934 | }; |
---|
| 1935 | |
---|
| 1936 | PCI_DRIVER ( velocity_driver, velocity_nics, PCI_NO_CLASS ); |
---|
| 1937 | |
---|
| 1938 | DRIVER ( "VIA-VELOCITY/PCI", nic_driver, pci_driver, velocity_driver, |
---|
| 1939 | velocity_probe, velocity_disable ); |
---|