/* * Copyright(c) 2007 Atheros Corporation. All rights reserved. * * Derived from Intel e1000 driver * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/netdevice.h> #include "atl1e.h" /* This is the only thing that needs to be changed to adjust the * maximum number of ports that the driver can manage. */ #define ATL1E_MAX_NIC 32 #define OPTION_UNSET -1 #define OPTION_DISABLED 0 #define OPTION_ENABLED 1 /* All parameters are treated the same, as an integer array of values. * This macro just reduces the need to repeat the same declaration code * over and over (plus this helps to avoid typo bugs). */ #define ATL1E_PARAM_INIT { [0 ... ATL1E_MAX_NIC] = OPTION_UNSET } #define ATL1E_PARAM(x, desc) \ static int __devinitdata x[ATL1E_MAX_NIC + 1] = ATL1E_PARAM_INIT; \ static int num_##x; \ module_param_array_named(x, x, int, &num_##x, 0); \ MODULE_PARM_DESC(x, desc); /* Transmit Memory count * * Valid Range: 64-2048 * * Default Value: 128 */ #define ATL1E_MIN_TX_DESC_CNT 32 #define ATL1E_MAX_TX_DESC_CNT 1020 #define ATL1E_DEFAULT_TX_DESC_CNT 128 ATL1E_PARAM(tx_desc_cnt, "Transmit description count"); /* Receive Memory Block Count * * Valid Range: 16-512 * * Default Value: 128 */ #define ATL1E_MIN_RX_MEM_SIZE 8 /* 8KB */ #define ATL1E_MAX_RX_MEM_SIZE 1024 /* 1MB */ #define ATL1E_DEFAULT_RX_MEM_SIZE 256 /* 128KB */ ATL1E_PARAM(rx_mem_size, "memory size of rx buffer(KB)"); /* User Specified MediaType Override * * Valid Range: 0-5 * - 0 - auto-negotiate at all supported speeds * - 1 - only link at 100Mbps Full Duplex * - 2 - only link at 100Mbps Half Duplex * - 3 - only link at 10Mbps Full Duplex * - 4 - only link at 10Mbps Half Duplex * Default Value: 0 */ ATL1E_PARAM(media_type, "MediaType Select"); /* Interrupt Moderate Timer in units of 2 us * * Valid Range: 10-65535 * * Default Value: 45000(90ms) */ #define INT_MOD_DEFAULT_CNT 100 /* 200us */ #define INT_MOD_MAX_CNT 65000 #define INT_MOD_MIN_CNT 50 ATL1E_PARAM(int_mod_timer, "Interrupt Moderator Timer"); #define AUTONEG_ADV_DEFAULT 0x2F #define AUTONEG_ADV_MASK 0x2F #define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL #define FLASH_VENDOR_DEFAULT 0 #define FLASH_VENDOR_MIN 0 #define FLASH_VENDOR_MAX 2 struct atl1e_option { enum { enable_option, range_option, list_option } type; char *name; char *err; int def; union { struct { /* range_option info */ int min; int max; } r; struct { /* list_option info */ int nr; struct atl1e_opt_list { int i; char *str; } *p; } l; } arg; }; static int __devinit atl1e_validate_option(int *value, struct atl1e_option *opt, struct pci_dev *pdev) { if (*value == OPTION_UNSET) { *value = opt->def; return 0; } switch (opt->type) { case enable_option: switch (*value) { case OPTION_ENABLED: dev_info(&pdev->dev, "%s Enabled\n", opt->name); return 0; case OPTION_DISABLED: dev_info(&pdev->dev, "%s Disabled\n", opt->name); return 0; } break; case range_option: if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { dev_info(&pdev->dev, "%s set to %i\n", opt->name, *value); return 0; } break; case list_option:{ int i; struct atl1e_opt_list *ent; for (i = 0; i < opt->arg.l.nr; i++) { ent = &opt->arg.l.p[i]; if (*value == ent->i) { if (ent->str[0] != '\0') dev_info(&pdev->dev, "%s\n", ent->str); return 0; } } break; } default: BUG(); } dev_info(&pdev->dev, "Invalid %s specified (%i) %s\n", opt->name, *value, opt->err); *value = opt->def; return -1; } /* * atl1e_check_options - Range Checking for Command Line Parameters * @adapter: board private structure * * This routine checks all command line parameters for valid user * input. If an invalid value is given, or if no user specified * value exists, a default value is used. The final value is stored * in a variable in the adapter structure. */ void __devinit atl1e_check_options(struct atl1e_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; int bd = adapter->bd_number; if (bd >= ATL1E_MAX_NIC) { dev_notice(&pdev->dev, "no configuration for board #%i\n", bd); dev_notice(&pdev->dev, "Using defaults for all values\n"); } { /* Transmit Ring Size */ struct atl1e_option opt = { .type = range_option, .name = "Transmit Ddescription Count", .err = "using default of " __MODULE_STRING(ATL1E_DEFAULT_TX_DESC_CNT), .def = ATL1E_DEFAULT_TX_DESC_CNT, .arg = { .r = { .min = ATL1E_MIN_TX_DESC_CNT, .max = ATL1E_MAX_TX_DESC_CNT} } }; int val; if (num_tx_desc_cnt > bd) { val = tx_desc_cnt[bd]; atl1e_validate_option(&val, &opt, pdev); adapter->tx_ring.count = (u16) val & 0xFFFC; } else adapter->tx_ring.count = (u16)opt.def; } { /* Receive Memory Block Count */ struct atl1e_option opt = { .type = range_option, .name = "Memory size of rx buffer(KB)", .err = "using default of " __MODULE_STRING(ATL1E_DEFAULT_RX_MEM_SIZE), .def = ATL1E_DEFAULT_RX_MEM_SIZE, .arg = { .r = { .min = ATL1E_MIN_RX_MEM_SIZE, .max = ATL1E_MAX_RX_MEM_SIZE} } }; int val; if (num_rx_mem_size > bd) { val = rx_mem_size[bd]; atl1e_validate_option(&val, &opt, pdev); adapter->rx_ring.page_size = (u32)val * 1024; } else { adapter->rx_ring.page_size = (u32)opt.def * 1024; } } { /* Interrupt Moderate Timer */ struct atl1e_option opt = { .type = range_option, .name = "Interrupt Moderate Timer", .err = "using default of " __MODULE_STRING(INT_MOD_DEFAULT_CNT), .def = INT_MOD_DEFAULT_CNT, .arg = { .r = { .min = INT_MOD_MIN_CNT, .max = INT_MOD_MAX_CNT} } } ; int val; if (num_int_mod_timer > bd) { val = int_mod_timer[bd]; atl1e_validate_option(&val, &opt, pdev); adapter->hw.imt = (u16) val; } else adapter->hw.imt = (u16)(opt.def); } { /* MediaType */ struct atl1e_option opt = { .type = range_option, .name = "Speed/Duplex Selection", .err = "using default of " __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR), .def = MEDIA_TYPE_AUTO_SENSOR, .arg = { .r = { .min = MEDIA_TYPE_AUTO_SENSOR, .max = MEDIA_TYPE_10M_HALF} } } ; int val; if (num_media_type > bd) { val = media_type[bd]; atl1e_validate_option(&val, &opt, pdev); adapter->hw.media_type = (u16) val; } else adapter->hw.media_type = (u16)(opt.def); } }