Merge ../linux-2.6-watchdog-mm
[pandora-kernel.git] / drivers / net / e1000 / e1000_param.c
index 0ef4131..cf2a279 100644 (file)
@@ -1,25 +1,24 @@
 /*******************************************************************************
 
-  
-  Copyright(c) 1999 - 2006 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 
+  Intel PRO/1000 Linux driver
+  Copyright(c) 1999 - 2006 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., 59 
-  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-  
-  The full GNU General Public License is included in this distribution in the
-  file called LICENSE.
-  
+  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>
  */
 
 #define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
-/* Module Parameters are always initialized to -1, so that the driver
- * can tell the difference between no user specified value or the
- * user asking for the default value.
- * The true default values are loaded in when e1000_check_options is called.
- *
- * This is a GCC extension to ANSI C.
- * See the item "Labeled Elements in Initializers" in the section
- * "Extensions to the C Language Family" of the GCC documentation.
- */
-
 #define E1000_PARAM(X, desc) \
        static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
        static int num_##X = 0; \
@@ -68,7 +57,6 @@
  *
  * Default Value: 256
  */
-
 E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
 
 /* Receive Descriptor Count
@@ -78,7 +66,6 @@ E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
  *
  * Default Value: 256
  */
-
 E1000_PARAM(RxDescriptors, "Number of receive descriptors");
 
 /* User Specified Speed Override
@@ -91,7 +78,6 @@ E1000_PARAM(RxDescriptors, "Number of receive descriptors");
  *
  * Default Value: 0
  */
-
 E1000_PARAM(Speed, "Speed setting");
 
 /* User Specified Duplex Override
@@ -103,7 +89,6 @@ E1000_PARAM(Speed, "Speed setting");
  *
  * Default Value: 0
  */
-
 E1000_PARAM(Duplex, "Duplex setting");
 
 /* Auto-negotiation Advertisement Override
@@ -120,8 +105,9 @@ E1000_PARAM(Duplex, "Duplex setting");
  *
  * Default Value: 0x2F (copper); 0x20 (fiber)
  */
-
 E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
+#define AUTONEG_ADV_DEFAULT  0x2F
+#define AUTONEG_ADV_MASK     0x2F
 
 /* User Specified Flow Control Override
  *
@@ -133,8 +119,8 @@ E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
  *
  * Default Value: Read flow control settings from the EEPROM
  */
-
 E1000_PARAM(FlowControl, "Flow Control setting");
+#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
 
 /* XsumRX - Receive Checksum Offload Enable/Disable
  *
@@ -145,53 +131,54 @@ E1000_PARAM(FlowControl, "Flow Control setting");
  *
  * Default Value: 1
  */
-
 E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
 
 /* 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
- *
- * Default Value: 64
  */
-
 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
- *
- * Default Value: 0
  */
-
 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
- *
- * Default Value: 0
  */
-
 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
- *
- * Default Value: 128
  */
-
 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)
- *
- * Default Value: 8000
+ * 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
  *
@@ -199,7 +186,6 @@ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
  *
  * Default Value: 0 (disabled)
  */
-
 E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
 
 /* Enable Kumeran Lock Loss workaround
@@ -208,33 +194,8 @@ E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
  *
  * Default Value: 1 (enabled)
  */
-
 E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
 
-#define AUTONEG_ADV_DEFAULT  0x2F
-#define AUTONEG_ADV_MASK     0x2F
-#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
-
-#define DEFAULT_RDTR                   0
-#define MAX_RXDELAY               0xFFFF
-#define MIN_RXDELAY                    0
-
-#define DEFAULT_RADV                 128
-#define MAX_RXABSDELAY            0xFFFF
-#define MIN_RXABSDELAY                 0
-
-#define DEFAULT_TIDV                  64
-#define MAX_TXDELAY               0xFFFF
-#define MIN_TXDELAY                    0
-
-#define DEFAULT_TADV                  64
-#define MAX_TXABSDELAY            0xFFFF
-#define MIN_TXABSDELAY                 0
-
-#define DEFAULT_ITR                 8000
-#define MAX_ITR                   100000
-#define MIN_ITR                      100
-
 struct e1000_option {
        enum { enable_option, range_option, list_option } type;
        char *name;
@@ -324,7 +285,6 @@ e1000_check_options(struct e1000_adapter *adapter)
                DPRINTK(PROBE, NOTICE,
                       "Warning: no configuration for board #%i\n", bd);
                DPRINTK(PROBE, NOTICE, "Using defaults for all values\n");
-               bd = E1000_MAX_NIC;
        }
 
        { /* Transmit Descriptor Count */
@@ -342,9 +302,14 @@ e1000_check_options(struct e1000_adapter *adapter)
                opt.arg.r.max = mac_type < e1000_82544 ?
                        E1000_MAX_TXD : E1000_MAX_82544_TXD;
 
-               tx_ring->count = TxDescriptors[bd];
-               e1000_validate_option(&tx_ring->count, &opt, adapter);
-               E1000_ROUNDUP(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
+               if (num_TxDescriptors > bd) {
+                       tx_ring->count = TxDescriptors[bd];
+                       e1000_validate_option(&tx_ring->count, &opt, adapter);
+                       E1000_ROUNDUP(tx_ring->count,
+                                               REQ_TX_DESCRIPTOR_MULTIPLE);
+               } else {
+                       tx_ring->count = opt.def;
+               }
                for (i = 0; i < adapter->num_tx_queues; i++)
                        tx_ring[i].count = tx_ring->count;
        }
@@ -363,9 +328,14 @@ e1000_check_options(struct e1000_adapter *adapter)
                opt.arg.r.max = mac_type < e1000_82544 ? E1000_MAX_RXD :
                        E1000_MAX_82544_RXD;
 
-               rx_ring->count = RxDescriptors[bd];
-               e1000_validate_option(&rx_ring->count, &opt, adapter);
-               E1000_ROUNDUP(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
+               if (num_RxDescriptors > bd) {
+                       rx_ring->count = RxDescriptors[bd];
+                       e1000_validate_option(&rx_ring->count, &opt, adapter);
+                       E1000_ROUNDUP(rx_ring->count,
+                                               REQ_RX_DESCRIPTOR_MULTIPLE);
+               } else {
+                       rx_ring->count = opt.def;
+               }
                for (i = 0; i < adapter->num_rx_queues; i++)
                        rx_ring[i].count = rx_ring->count;
        }
@@ -377,31 +347,39 @@ e1000_check_options(struct e1000_adapter *adapter)
                        .def  = OPTION_ENABLED
                };
 
-               int rx_csum = XsumRX[bd];
-               e1000_validate_option(&rx_csum, &opt, adapter);
-               adapter->rx_csum = rx_csum;
+               if (num_XsumRX > bd) {
+                       int rx_csum = XsumRX[bd];
+                       e1000_validate_option(&rx_csum, &opt, adapter);
+                       adapter->rx_csum = rx_csum;
+               } else {
+                       adapter->rx_csum = opt.def;
+               }
        }
        { /* Flow Control */
 
                struct e1000_opt_list fc_list[] =
-                       {{ e1000_fc_none,    "Flow Control Disabled" },
-                        { e1000_fc_rx_pause,"Flow Control Receive Only" },
-                        { e1000_fc_tx_pause,"Flow Control Transmit Only" },
-                        { e1000_fc_full,    "Flow Control Enabled" },
-                        { e1000_fc_default, "Flow Control Hardware Default" }};
+                       {{ E1000_FC_NONE,    "Flow Control Disabled" },
+                        { E1000_FC_RX_PAUSE,"Flow Control Receive Only" },
+                        { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" },
+                        { E1000_FC_FULL,    "Flow Control Enabled" },
+                        { E1000_FC_DEFAULT, "Flow Control Hardware Default" }};
 
                struct e1000_option opt = {
                        .type = list_option,
                        .name = "Flow Control",
                        .err  = "reading default settings from EEPROM",
-                       .def  = e1000_fc_default,
+                       .def  = E1000_FC_DEFAULT,
                        .arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
                                         .p = fc_list }}
                };
 
-               int fc = FlowControl[bd];
-               e1000_validate_option(&fc, &opt, adapter);
-               adapter->hw.fc = adapter->hw.original_fc = fc;
+               if (num_FlowControl > bd) {
+                       int fc = FlowControl[bd];
+                       e1000_validate_option(&fc, &opt, adapter);
+                       adapter->hw.fc = adapter->hw.original_fc = fc;
+               } else {
+                       adapter->hw.fc = adapter->hw.original_fc = opt.def;
+               }
        }
        { /* Transmit Interrupt Delay */
                struct e1000_option opt = {
@@ -413,8 +391,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                                         .max = MAX_TXDELAY }}
                };
 
-               adapter->tx_int_delay = TxIntDelay[bd];
-               e1000_validate_option(&adapter->tx_int_delay, &opt, adapter);
+               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 = {
@@ -426,9 +409,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                                         .max = MAX_TXABSDELAY }}
                };
 
-               adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
-               e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
-                                     adapter);
+               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 = {
@@ -440,8 +427,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                                         .max = MAX_RXDELAY }}
                };
 
-               adapter->rx_int_delay = RxIntDelay[bd];
-               e1000_validate_option(&adapter->rx_int_delay, &opt, adapter);
+               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 = {
@@ -453,9 +445,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                                         .max = MAX_RXABSDELAY }}
                };
 
-               adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
-               e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
-                                     adapter);
+               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 = {
@@ -467,18 +463,38 @@ e1000_check_options(struct e1000_adapter *adapter)
                                         .max = MAX_ITR }}
                };
 
-               adapter->itr = InterruptThrottleRate[bd];
-               switch (adapter->itr) {
-               case 0:
-                       DPRINTK(PROBE, INFO, "%s turned off\n", opt.name);
-                       break;
-               case 1:
-                       DPRINTK(PROBE, INFO, "%s set to dynamic mode\n",
-                               opt.name);
-                       break;
-               default:
-                       e1000_validate_option(&adapter->itr, &opt, adapter);
-                       break;
+               if (num_InterruptThrottleRate > bd) {
+                       adapter->itr = InterruptThrottleRate[bd];
+                       switch (adapter->itr) {
+                       case 0:
+                               DPRINTK(PROBE, INFO, "%s turned off\n",
+                                       opt.name);
+                               break;
+                       case 1:
+                               DPRINTK(PROBE, INFO, "%s set to dynamic mode\n",
+                                       opt.name);
+                               adapter->itr_setting = adapter->itr;
+                               adapter->itr = 20000;
+                               break;
+                       case 3:
+                               DPRINTK(PROBE, INFO,
+                                       "%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 */
@@ -489,9 +505,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                        .def  = OPTION_DISABLED
                };
 
-               int spd = SmartPowerDownEnable[bd];
-               e1000_validate_option(&spd, &opt, adapter);
-               adapter->smart_power_down = spd;
+               if (num_SmartPowerDownEnable > bd) {
+                       int spd = SmartPowerDownEnable[bd];
+                       e1000_validate_option(&spd, &opt, adapter);
+                       adapter->smart_power_down = spd;
+               } else {
+                       adapter->smart_power_down = opt.def;
+               }
        }
        { /* Kumeran Lock Loss Workaround */
                struct e1000_option opt = {
@@ -501,9 +521,13 @@ e1000_check_options(struct e1000_adapter *adapter)
                        .def  = OPTION_ENABLED
                };
 
+               if (num_KumeranLockLoss > bd) {
                        int kmrn_lock_loss = KumeranLockLoss[bd];
                        e1000_validate_option(&kmrn_lock_loss, &opt, adapter);
                        adapter->hw.kmrn_lock_loss_workaround_disabled = !kmrn_lock_loss;
+               } else {
+                       adapter->hw.kmrn_lock_loss_workaround_disabled = !opt.def;
+               }
        }
 
        switch (adapter->hw.media_type) {
@@ -530,18 +554,17 @@ static void __devinit
 e1000_check_fiber_options(struct e1000_adapter *adapter)
 {
        int bd = adapter->bd_number;
-       bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;
-       if ((Speed[bd] != OPTION_UNSET)) {
+       if (num_Speed > bd) {
                DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, "
                       "parameter ignored\n");
        }
 
-       if ((Duplex[bd] != OPTION_UNSET)) {
+       if (num_Duplex > bd) {
                DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, "
                       "parameter ignored\n");
        }
 
-       if ((AutoNeg[bd] != OPTION_UNSET) && (AutoNeg[bd] != 0x20)) {
+       if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
                DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is "
                                 "not valid for fiber adapters, "
                                 "parameter ignored\n");
@@ -560,7 +583,6 @@ e1000_check_copper_options(struct e1000_adapter *adapter)
 {
        int speed, dplx, an;
        int bd = adapter->bd_number;
-       bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;
 
        { /* Speed */
                struct e1000_opt_list speed_list[] = {{          0, "" },
@@ -577,8 +599,12 @@ e1000_check_copper_options(struct e1000_adapter *adapter)
                                         .p = speed_list }}
                };
 
-               speed = Speed[bd];
-               e1000_validate_option(&speed, &opt, adapter);
+               if (num_Speed > bd) {
+                       speed = Speed[bd];
+                       e1000_validate_option(&speed, &opt, adapter);
+               } else {
+                       speed = opt.def;
+               }
        }
        { /* Duplex */
                struct e1000_opt_list dplx_list[] = {{           0, "" },
@@ -600,11 +626,15 @@ e1000_check_copper_options(struct e1000_adapter *adapter)
                                "Speed/Duplex/AutoNeg parameter ignored.\n");
                        return;
                }
-               dplx = Duplex[bd];
-               e1000_validate_option(&dplx, &opt, adapter);
+               if (num_Duplex > bd) {
+                       dplx = Duplex[bd];
+                       e1000_validate_option(&dplx, &opt, adapter);
+               } else {
+                       dplx = opt.def;
+               }
        }
 
-       if (AutoNeg[bd] != OPTION_UNSET && (speed != 0 || dplx != 0)) {
+       if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
                DPRINTK(PROBE, INFO,
                       "AutoNeg specified along with Speed or Duplex, "
                       "parameter ignored\n");
@@ -653,15 +683,19 @@ e1000_check_copper_options(struct e1000_adapter *adapter)
                                         .p = an_list }}
                };
 
-               an = AutoNeg[bd];
-               e1000_validate_option(&an, &opt, adapter);
+               if (num_AutoNeg > bd) {
+                       an = AutoNeg[bd];
+                       e1000_validate_option(&an, &opt, adapter);
+               } else {
+                       an = opt.def;
+               }
                adapter->hw.autoneg_advertised = an;
        }
 
        switch (speed + dplx) {
        case 0:
                adapter->hw.autoneg = adapter->fc_autoneg = 1;
-               if (Speed[bd] != OPTION_UNSET || Duplex[bd] != OPTION_UNSET)
+               if ((num_Speed > bd) && (speed != 0 || dplx != 0))
                        DPRINTK(PROBE, INFO,
                               "Speed and duplex autonegotiation enabled\n");
                break;