1 files changed, 382 insertions, 0 deletions

diff --git a/drivers/net/e1000e/param.c b/drivers/net/e1000e/param.c
new file mode 100644
index 000000000000..e4e655efb23c
--- /dev/null
+++ b/drivers/net/e1000e/param.c
@@ -0,0 +1,382 @@
+/*******************************************************************************
+
+  Intel PRO/1000 Linux driver
+  Copyright(c) 1999 - 2007 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope 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.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/netdevice.h>
+
+#include "e1000.h"
+
+/* This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+
+#define E1000_MAX_NIC 32
+
+#define OPTION_UNSET   -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+#define COPYBREAK_DEFAULT 256
+unsigned int copybreak = COPYBREAK_DEFAULT;
+module_param(copybreak, uint, 0644);
+MODULE_PARM_DESC(copybreak,
+        "Maximum size of packet that is copied to a new buffer on receive");
+
+/* 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 E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
+#define E1000_PARAM(X, desc) \
+        static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
+        static int num_##X; \
+        module_param_array_named(X, X, int, &num_##X, 0); \
+        MODULE_PARM_DESC(X, desc);
+
+
+/* Transmit Interrupt Delay in units of 1.024 microseconds
+ *  Tx interrupt delay needs to typically be set to something non zero
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
+#define DEFAULT_TIDV 8
+#define MAX_TXDELAY 0xFFFF
+#define MIN_TXDELAY 0
+
+/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
+#define DEFAULT_TADV 32
+#define MAX_TXABSDELAY 0xFFFF
+#define MIN_TXABSDELAY 0
+
+/* Receive Interrupt Delay in units of 1.024 microseconds
+ *   hardware will likely hang if you set this to anything but zero.
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
+#define DEFAULT_RDTR 0
+#define MAX_RXDELAY 0xFFFF
+#define MIN_RXDELAY 0
+
+/* Receive Absolute Interrupt Delay in units of 1.024 microseconds
+ *
+ * Valid Range: 0-65535
+ */
+E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
+#define DEFAULT_RADV 8
+#define MAX_RXABSDELAY 0xFFFF
+#define MIN_RXABSDELAY 0
+
+/* Interrupt Throttle Rate (interrupts/sec)
+ *
+ * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
+ */
+E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
+#define DEFAULT_ITR 3
+#define MAX_ITR 100000
+#define MIN_ITR 100
+
+/* Enable Smart Power Down of the PHY
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 0 (disabled)
+ */
+E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
+
+/* Enable Kumeran Lock Loss workaround
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 1 (enabled)
+ */
+E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
+
+struct e1000_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 e1000_opt_list { int i; char *str; } *p;
+                } l;
+        } arg;
+};
+
+static int __devinit e1000_validate_option(int *value,
+                                           struct e1000_option *opt,
+                                           struct e1000_adapter *adapter)
+{
+        if (*value == OPTION_UNSET) {
+                *value = opt->def;
+                return 0;
+        }
+
+        switch (opt->type) {
+        case enable_option:
+                switch (*value) {
+                case OPTION_ENABLED:
+                        ndev_info(adapter->netdev, "%s Enabled\n", opt->name);
+                        return 0;
+                case OPTION_DISABLED:
+                        ndev_info(adapter->netdev, "%s Disabled\n", opt->name);
+                        return 0;
+                }
+                break;
+        case range_option:
+                if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+                        ndev_info(adapter->netdev,
+                                        "%s set to %i\n", opt->name, *value);
+                        return 0;
+                }
+                break;
+        case list_option: {
+                int i;
+                struct e1000_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')
+                                        ndev_info(adapter->netdev, "%s\n",
+                                                  ent->str);
+                                return 0;
+                        }
+                }
+        }
+                break;
+        default:
+                BUG();
+        }
+
+        ndev_info(adapter->netdev, "Invalid %s value specified (%i) %s\n",
+               opt->name, *value, opt->err);
+        *value = opt->def;
+        return -1;
+}
+
+/**
+ * e1000e_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 e1000e_check_options(struct e1000_adapter *adapter)
+{
+        struct e1000_hw *hw = &adapter->hw;
+        struct net_device *netdev = adapter->netdev;
+        int bd = adapter->bd_number;
+
+        if (bd >= E1000_MAX_NIC) {
+                ndev_notice(netdev,
+                       "Warning: no configuration for board #%i\n", bd);
+                ndev_notice(netdev, "Using defaults for all values\n");
+        }
+
+        { /* Transmit Interrupt Delay */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Transmit Interrupt Delay",
+                        .err  = "using default of "
+                                __MODULE_STRING(DEFAULT_TIDV),
+                        .def  = DEFAULT_TIDV,
+                        .arg  = { .r = { .min = MIN_TXDELAY,
+                                         .max = MAX_TXDELAY } }
+                };
+
+                if (num_TxIntDelay > bd) {
+                        adapter->tx_int_delay = TxIntDelay[bd];
+                        e1000_validate_option(&adapter->tx_int_delay, &opt,
+                                              adapter);
+                } else {
+                        adapter->tx_int_delay = opt.def;
+                }
+        }
+        { /* Transmit Absolute Interrupt Delay */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Transmit Absolute Interrupt Delay",
+                        .err  = "using default of "
+                                __MODULE_STRING(DEFAULT_TADV),
+                        .def  = DEFAULT_TADV,
+                        .arg  = { .r = { .min = MIN_TXABSDELAY,
+                                         .max = MAX_TXABSDELAY } }
+                };
+
+                if (num_TxAbsIntDelay > bd) {
+                        adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
+                        e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
+                                              adapter);
+                } else {
+                        adapter->tx_abs_int_delay = opt.def;
+                }
+        }
+        { /* Receive Interrupt Delay */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Receive Interrupt Delay",
+                        .err  = "using default of "
+                                __MODULE_STRING(DEFAULT_RDTR),
+                        .def  = DEFAULT_RDTR,
+                        .arg  = { .r = { .min = MIN_RXDELAY,
+                                         .max = MAX_RXDELAY } }
+                };
+
+                /* modify min and default if 82573 for slow ping w/a,
+                 * a value greater than 8 needs to be set for RDTR */
+                if (adapter->flags & FLAG_HAS_ASPM) {
+                        opt.def = 32;
+                        opt.arg.r.min = 8;
+                }
+
+                if (num_RxIntDelay > bd) {
+                        adapter->rx_int_delay = RxIntDelay[bd];
+                        e1000_validate_option(&adapter->rx_int_delay, &opt,
+                                              adapter);
+                } else {
+                        adapter->rx_int_delay = opt.def;
+                }
+        }
+        { /* Receive Absolute Interrupt Delay */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Receive Absolute Interrupt Delay",
+                        .err  = "using default of "
+                                __MODULE_STRING(DEFAULT_RADV),
+                        .def  = DEFAULT_RADV,
+                        .arg  = { .r = { .min = MIN_RXABSDELAY,
+                                         .max = MAX_RXABSDELAY } }
+                };
+
+                if (num_RxAbsIntDelay > bd) {
+                        adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
+                        e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
+                                              adapter);
+                } else {
+                        adapter->rx_abs_int_delay = opt.def;
+                }
+        }
+        { /* Interrupt Throttling Rate */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Interrupt Throttling Rate (ints/sec)",
+                        .err  = "using default of "
+                                __MODULE_STRING(DEFAULT_ITR),
+                        .def  = DEFAULT_ITR,
+                        .arg  = { .r = { .min = MIN_ITR,
+                                         .max = MAX_ITR } }
+                };
+
+                if (num_InterruptThrottleRate > bd) {
+                        adapter->itr = InterruptThrottleRate[bd];
+                        switch (adapter->itr) {
+                        case 0:
+                                ndev_info(netdev, "%s turned off\n",
+                                        opt.name);
+                                break;
+                        case 1:
+                                ndev_info(netdev,
+                                          "%s set to dynamic mode\n",
+                                          opt.name);
+                                adapter->itr_setting = adapter->itr;
+                                adapter->itr = 20000;
+                                break;
+                        case 3:
+                                ndev_info(netdev,
+                                        "%s set to dynamic conservative mode\n",
+                                        opt.name);
+                                adapter->itr_setting = adapter->itr;
+                                adapter->itr = 20000;
+                                break;
+                        default:
+                                e1000_validate_option(&adapter->itr, &opt,
+                                        adapter);
+                                /*
+                                 * save the setting, because the dynamic bits
+                                 * change itr. clear the lower two bits
+                                 * because they are used as control
+                                 */
+                                adapter->itr_setting = adapter->itr & ~3;
+                                break;
+                        }
+                } else {
+                        adapter->itr_setting = opt.def;
+                        adapter->itr = 20000;
+                }
+        }
+        { /* Smart Power Down */
+                struct e1000_option opt = {
+                        .type = enable_option,
+                        .name = "PHY Smart Power Down",
+                        .err  = "defaulting to Disabled",
+                        .def  = OPTION_DISABLED
+                };
+
+                if (num_SmartPowerDownEnable > bd) {
+                        int spd = SmartPowerDownEnable[bd];
+                        e1000_validate_option(&spd, &opt, adapter);
+                        if ((adapter->flags & FLAG_HAS_SMART_POWER_DOWN)
+                            && spd)
+                                adapter->flags |= FLAG_SMART_POWER_DOWN;
+                }
+        }
+        { /* Kumeran Lock Loss Workaround */
+                struct e1000_option opt = {
+                        .type = enable_option,
+                        .name = "Kumeran Lock Loss Workaround",
+                        .err  = "defaulting to Enabled",
+                        .def  = OPTION_ENABLED
+                };
+
+                if (num_KumeranLockLoss > bd) {
+                        int kmrn_lock_loss = KumeranLockLoss[bd];
+                        e1000_validate_option(&kmrn_lock_loss, &opt, adapter);
+                        if (hw->mac.type == e1000_ich8lan)
+                                e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw,
+                                                                kmrn_lock_loss);
+                } else {
+                        if (hw->mac.type == e1000_ich8lan)
+                                e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw,
+                                                                       opt.def);
+                }
+        }
+}