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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e824f7836d
We need linux/pci.h. Signed-off-by: Jeff Garzik <jeff@garzik.org>
204 lines
5.2 KiB
C
204 lines
5.2 KiB
C
/*
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* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
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* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
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* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
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*
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* Derived from Intel e1000 driver
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* Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <linux/types.h>
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#include <linux/moduleparam.h>
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#include <linux/pci.h>
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#include "atl1.h"
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/*
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* This is the only thing that needs to be changed to adjust the
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* maximum number of ports that the driver can manage.
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*/
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#define ATL1_MAX_NIC 4
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#define OPTION_UNSET -1
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#define OPTION_DISABLED 0
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#define OPTION_ENABLED 1
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#define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
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/*
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* Interrupt Moderate Timer in units of 2 us
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*
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* Valid Range: 10-65535
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*
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* Default Value: 100 (200us)
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*/
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static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
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static int num_int_mod_timer = 0;
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module_param_array_named(int_mod_timer, int_mod_timer, int, &num_int_mod_timer, 0);
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MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
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/*
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* flash_vendor
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*
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* Valid Range: 0-2
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*
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* 0 - Atmel
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* 1 - SST
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* 2 - ST
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*
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* Default Value: 0
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*/
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static int __devinitdata flash_vendor[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
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static int num_flash_vendor = 0;
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module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0);
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MODULE_PARM_DESC(flash_vendor, "SPI flash vendor");
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#define DEFAULT_INT_MOD_CNT 100 /* 200us */
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#define MAX_INT_MOD_CNT 65000
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#define MIN_INT_MOD_CNT 50
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#define FLASH_VENDOR_DEFAULT 0
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#define FLASH_VENDOR_MIN 0
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#define FLASH_VENDOR_MAX 2
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struct atl1_option {
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enum { enable_option, range_option, list_option } type;
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char *name;
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char *err;
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int def;
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union {
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struct { /* range_option info */
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int min;
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int max;
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} r;
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struct { /* list_option info */
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int nr;
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struct atl1_opt_list {
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int i;
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char *str;
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} *p;
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} l;
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} arg;
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};
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static int __devinit atl1_validate_option(int *value, struct atl1_option *opt, struct pci_dev *pdev)
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{
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if (*value == OPTION_UNSET) {
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*value = opt->def;
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return 0;
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}
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switch (opt->type) {
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case enable_option:
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switch (*value) {
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case OPTION_ENABLED:
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dev_info(&pdev->dev, "%s enabled\n", opt->name);
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return 0;
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case OPTION_DISABLED:
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dev_info(&pdev->dev, "%s disabled\n", opt->name);
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return 0;
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}
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break;
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case range_option:
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if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
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dev_info(&pdev->dev, "%s set to %i\n", opt->name,
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*value);
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return 0;
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}
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break;
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case list_option:{
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int i;
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struct atl1_opt_list *ent;
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for (i = 0; i < opt->arg.l.nr; i++) {
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ent = &opt->arg.l.p[i];
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if (*value == ent->i) {
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if (ent->str[0] != '\0')
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dev_info(&pdev->dev, "%s\n",
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ent->str);
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return 0;
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}
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}
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}
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break;
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default:
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break;
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}
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dev_info(&pdev->dev, "invalid %s specified (%i) %s\n",
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opt->name, *value, opt->err);
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*value = opt->def;
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return -1;
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}
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/*
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* atl1_check_options - Range Checking for Command Line Parameters
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* @adapter: board private structure
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*
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* This routine checks all command line parameters for valid user
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* input. If an invalid value is given, or if no user specified
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* value exists, a default value is used. The final value is stored
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* in a variable in the adapter structure.
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*/
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void __devinit atl1_check_options(struct atl1_adapter *adapter)
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{
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struct pci_dev *pdev = adapter->pdev;
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int bd = adapter->bd_number;
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if (bd >= ATL1_MAX_NIC) {
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dev_notice(&pdev->dev, "no configuration for board#%i\n", bd);
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dev_notice(&pdev->dev, "using defaults for all values\n");
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}
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{ /* Interrupt Moderate Timer */
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struct atl1_option opt = {
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.type = range_option,
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.name = "Interrupt Moderator Timer",
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.err = "using default of "
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__MODULE_STRING(DEFAULT_INT_MOD_CNT),
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.def = DEFAULT_INT_MOD_CNT,
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.arg = {.r =
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{.min = MIN_INT_MOD_CNT,.max = MAX_INT_MOD_CNT}}
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};
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int val;
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if (num_int_mod_timer > bd) {
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val = int_mod_timer[bd];
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atl1_validate_option(&val, &opt, pdev);
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adapter->imt = (u16) val;
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} else
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adapter->imt = (u16) (opt.def);
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}
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{ /* Flash Vendor */
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struct atl1_option opt = {
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.type = range_option,
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.name = "SPI Flash Vendor",
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.err = "using default of "
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__MODULE_STRING(FLASH_VENDOR_DEFAULT),
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.def = DEFAULT_INT_MOD_CNT,
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.arg = {.r =
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{.min = FLASH_VENDOR_MIN,.max =
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FLASH_VENDOR_MAX}}
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};
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int val;
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if (num_flash_vendor > bd) {
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val = flash_vendor[bd];
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atl1_validate_option(&val, &opt, pdev);
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adapter->hw.flash_vendor = (u8) val;
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} else
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adapter->hw.flash_vendor = (u8) (opt.def);
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}
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}
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