Jie Yang | a6a5325 | 2008-07-18 11:37:13 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2007 Atheros Corporation. All rights reserved. |
| 3 | * |
| 4 | * Derived from Intel e1000 driver |
| 5 | * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the Free |
| 9 | * Software Foundation; either version 2 of the License, or (at your option) |
| 10 | * any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., 59 |
| 19 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | */ |
| 21 | |
| 22 | #include <linux/netdevice.h> |
| 23 | |
| 24 | #include "atl1e.h" |
| 25 | |
| 26 | /* This is the only thing that needs to be changed to adjust the |
| 27 | * maximum number of ports that the driver can manage. |
| 28 | */ |
| 29 | |
| 30 | #define ATL1E_MAX_NIC 32 |
| 31 | |
| 32 | #define OPTION_UNSET -1 |
| 33 | #define OPTION_DISABLED 0 |
| 34 | #define OPTION_ENABLED 1 |
| 35 | |
| 36 | /* All parameters are treated the same, as an integer array of values. |
| 37 | * This macro just reduces the need to repeat the same declaration code |
| 38 | * over and over (plus this helps to avoid typo bugs). |
| 39 | */ |
| 40 | #define ATL1E_PARAM_INIT { [0 ... ATL1E_MAX_NIC] = OPTION_UNSET } |
| 41 | |
| 42 | #define ATL1E_PARAM(x, desc) \ |
| 43 | static int __devinitdata x[ATL1E_MAX_NIC + 1] = ATL1E_PARAM_INIT; \ |
| 44 | static int num_##x; \ |
| 45 | module_param_array_named(x, x, int, &num_##x, 0); \ |
| 46 | MODULE_PARM_DESC(x, desc); |
| 47 | |
| 48 | /* Transmit Memory count |
| 49 | * |
| 50 | * Valid Range: 64-2048 |
| 51 | * |
| 52 | * Default Value: 128 |
| 53 | */ |
| 54 | #define ATL1E_MIN_TX_DESC_CNT 32 |
| 55 | #define ATL1E_MAX_TX_DESC_CNT 1020 |
| 56 | #define ATL1E_DEFAULT_TX_DESC_CNT 128 |
| 57 | ATL1E_PARAM(tx_desc_cnt, "Transmit description count"); |
| 58 | |
| 59 | /* Receive Memory Block Count |
| 60 | * |
| 61 | * Valid Range: 16-512 |
| 62 | * |
| 63 | * Default Value: 128 |
| 64 | */ |
| 65 | #define ATL1E_MIN_RX_MEM_SIZE 8 /* 8KB */ |
| 66 | #define ATL1E_MAX_RX_MEM_SIZE 1024 /* 1MB */ |
| 67 | #define ATL1E_DEFAULT_RX_MEM_SIZE 256 /* 128KB */ |
| 68 | ATL1E_PARAM(rx_mem_size, "memory size of rx buffer(KB)"); |
| 69 | |
| 70 | /* User Specified MediaType Override |
| 71 | * |
| 72 | * Valid Range: 0-5 |
| 73 | * - 0 - auto-negotiate at all supported speeds |
| 74 | * - 1 - only link at 100Mbps Full Duplex |
| 75 | * - 2 - only link at 100Mbps Half Duplex |
| 76 | * - 3 - only link at 10Mbps Full Duplex |
| 77 | * - 4 - only link at 10Mbps Half Duplex |
| 78 | * Default Value: 0 |
| 79 | */ |
| 80 | |
| 81 | ATL1E_PARAM(media_type, "MediaType Select"); |
| 82 | |
| 83 | /* Interrupt Moderate Timer in units of 2 us |
| 84 | * |
| 85 | * Valid Range: 10-65535 |
| 86 | * |
| 87 | * Default Value: 45000(90ms) |
| 88 | */ |
| 89 | #define INT_MOD_DEFAULT_CNT 100 /* 200us */ |
| 90 | #define INT_MOD_MAX_CNT 65000 |
| 91 | #define INT_MOD_MIN_CNT 50 |
| 92 | ATL1E_PARAM(int_mod_timer, "Interrupt Moderator Timer"); |
| 93 | |
| 94 | #define AUTONEG_ADV_DEFAULT 0x2F |
| 95 | #define AUTONEG_ADV_MASK 0x2F |
| 96 | #define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL |
| 97 | |
| 98 | #define FLASH_VENDOR_DEFAULT 0 |
| 99 | #define FLASH_VENDOR_MIN 0 |
| 100 | #define FLASH_VENDOR_MAX 2 |
| 101 | |
| 102 | struct atl1e_option { |
| 103 | enum { enable_option, range_option, list_option } type; |
| 104 | char *name; |
| 105 | char *err; |
| 106 | int def; |
| 107 | union { |
| 108 | struct { /* range_option info */ |
| 109 | int min; |
| 110 | int max; |
| 111 | } r; |
| 112 | struct { /* list_option info */ |
| 113 | int nr; |
| 114 | struct atl1e_opt_list { int i; char *str; } *p; |
| 115 | } l; |
| 116 | } arg; |
| 117 | }; |
| 118 | |
| 119 | static int __devinit atl1e_validate_option(int *value, struct atl1e_option *opt, struct pci_dev *pdev) |
| 120 | { |
| 121 | if (*value == OPTION_UNSET) { |
| 122 | *value = opt->def; |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | switch (opt->type) { |
| 127 | case enable_option: |
| 128 | switch (*value) { |
| 129 | case OPTION_ENABLED: |
| 130 | dev_info(&pdev->dev, "%s Enabled\n", opt->name); |
| 131 | return 0; |
| 132 | case OPTION_DISABLED: |
| 133 | dev_info(&pdev->dev, "%s Disabled\n", opt->name); |
| 134 | return 0; |
| 135 | } |
| 136 | break; |
| 137 | case range_option: |
| 138 | if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { |
| 139 | dev_info(&pdev->dev, "%s set to %i\n", opt->name, *value); |
| 140 | return 0; |
| 141 | } |
| 142 | break; |
| 143 | case list_option:{ |
| 144 | int i; |
| 145 | struct atl1e_opt_list *ent; |
| 146 | |
| 147 | for (i = 0; i < opt->arg.l.nr; i++) { |
| 148 | ent = &opt->arg.l.p[i]; |
| 149 | if (*value == ent->i) { |
| 150 | if (ent->str[0] != '\0') |
| 151 | dev_info(&pdev->dev, "%s\n", |
| 152 | ent->str); |
| 153 | return 0; |
| 154 | } |
| 155 | } |
| 156 | break; |
| 157 | } |
| 158 | default: |
| 159 | BUG(); |
| 160 | } |
| 161 | |
| 162 | dev_info(&pdev->dev, "Invalid %s specified (%i) %s\n", |
| 163 | opt->name, *value, opt->err); |
| 164 | *value = opt->def; |
| 165 | return -1; |
| 166 | } |
| 167 | |
| 168 | /* |
| 169 | * atl1e_check_options - Range Checking for Command Line Parameters |
| 170 | * @adapter: board private structure |
| 171 | * |
| 172 | * This routine checks all command line parameters for valid user |
| 173 | * input. If an invalid value is given, or if no user specified |
| 174 | * value exists, a default value is used. The final value is stored |
| 175 | * in a variable in the adapter structure. |
| 176 | */ |
| 177 | void __devinit atl1e_check_options(struct atl1e_adapter *adapter) |
| 178 | { |
| 179 | struct pci_dev *pdev = adapter->pdev; |
| 180 | int bd = adapter->bd_number; |
| 181 | if (bd >= ATL1E_MAX_NIC) { |
| 182 | dev_notice(&pdev->dev, "no configuration for board #%i\n", bd); |
| 183 | dev_notice(&pdev->dev, "Using defaults for all values\n"); |
| 184 | } |
| 185 | |
| 186 | { /* Transmit Ring Size */ |
| 187 | struct atl1e_option opt = { |
| 188 | .type = range_option, |
| 189 | .name = "Transmit Ddescription Count", |
| 190 | .err = "using default of " |
| 191 | __MODULE_STRING(ATL1E_DEFAULT_TX_DESC_CNT), |
| 192 | .def = ATL1E_DEFAULT_TX_DESC_CNT, |
| 193 | .arg = { .r = { .min = ATL1E_MIN_TX_DESC_CNT, |
| 194 | .max = ATL1E_MAX_TX_DESC_CNT} } |
| 195 | }; |
| 196 | int val; |
| 197 | if (num_tx_desc_cnt > bd) { |
| 198 | val = tx_desc_cnt[bd]; |
| 199 | atl1e_validate_option(&val, &opt, pdev); |
| 200 | adapter->tx_ring.count = (u16) val & 0xFFFC; |
| 201 | } else |
| 202 | adapter->tx_ring.count = (u16)opt.def; |
| 203 | } |
| 204 | |
| 205 | { /* Receive Memory Block Count */ |
| 206 | struct atl1e_option opt = { |
| 207 | .type = range_option, |
| 208 | .name = "Memory size of rx buffer(KB)", |
| 209 | .err = "using default of " |
| 210 | __MODULE_STRING(ATL1E_DEFAULT_RX_MEM_SIZE), |
| 211 | .def = ATL1E_DEFAULT_RX_MEM_SIZE, |
| 212 | .arg = { .r = { .min = ATL1E_MIN_RX_MEM_SIZE, |
| 213 | .max = ATL1E_MAX_RX_MEM_SIZE} } |
| 214 | }; |
| 215 | int val; |
| 216 | if (num_rx_mem_size > bd) { |
| 217 | val = rx_mem_size[bd]; |
| 218 | atl1e_validate_option(&val, &opt, pdev); |
| 219 | adapter->rx_ring.page_size = (u32)val * 1024; |
| 220 | } else { |
| 221 | adapter->rx_ring.page_size = (u32)opt.def * 1024; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | { /* Interrupt Moderate Timer */ |
| 226 | struct atl1e_option opt = { |
| 227 | .type = range_option, |
| 228 | .name = "Interrupt Moderate Timer", |
| 229 | .err = "using default of " |
| 230 | __MODULE_STRING(INT_MOD_DEFAULT_CNT), |
| 231 | .def = INT_MOD_DEFAULT_CNT, |
| 232 | .arg = { .r = { .min = INT_MOD_MIN_CNT, |
| 233 | .max = INT_MOD_MAX_CNT} } |
| 234 | } ; |
| 235 | int val; |
| 236 | if (num_int_mod_timer > bd) { |
| 237 | val = int_mod_timer[bd]; |
| 238 | atl1e_validate_option(&val, &opt, pdev); |
| 239 | adapter->hw.imt = (u16) val; |
| 240 | } else |
| 241 | adapter->hw.imt = (u16)(opt.def); |
| 242 | } |
| 243 | |
| 244 | { /* MediaType */ |
| 245 | struct atl1e_option opt = { |
| 246 | .type = range_option, |
| 247 | .name = "Speed/Duplex Selection", |
| 248 | .err = "using default of " |
| 249 | __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR), |
| 250 | .def = MEDIA_TYPE_AUTO_SENSOR, |
| 251 | .arg = { .r = { .min = MEDIA_TYPE_AUTO_SENSOR, |
| 252 | .max = MEDIA_TYPE_10M_HALF} } |
| 253 | } ; |
| 254 | int val; |
| 255 | if (num_media_type > bd) { |
| 256 | val = media_type[bd]; |
| 257 | atl1e_validate_option(&val, &opt, pdev); |
| 258 | adapter->hw.media_type = (u16) val; |
| 259 | } else |
| 260 | adapter->hw.media_type = (u16)(opt.def); |
| 261 | |
| 262 | } |
| 263 | } |