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@@ -106,7 +106,7 @@ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
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/*
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/*
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* Interrupt Throttle Rate (interrupts/sec)
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* Interrupt Throttle Rate (interrupts/sec)
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*
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*
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- * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
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+ * Valid Range: 100-100000 or one of: 0=off, 1=dynamic, 3=dynamic conservative
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*/
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*/
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E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
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E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
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#define DEFAULT_ITR 3
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#define DEFAULT_ITR 3
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@@ -344,53 +344,60 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter)
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if (num_InterruptThrottleRate > bd) {
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if (num_InterruptThrottleRate > bd) {
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adapter->itr = InterruptThrottleRate[bd];
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adapter->itr = InterruptThrottleRate[bd];
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- switch (adapter->itr) {
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- case 0:
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- e_info("%s turned off\n", opt.name);
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- break;
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- case 1:
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- e_info("%s set to dynamic mode\n", opt.name);
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- adapter->itr_setting = adapter->itr;
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- adapter->itr = 20000;
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- break;
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- case 3:
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- e_info("%s set to dynamic conservative mode\n",
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- opt.name);
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- adapter->itr_setting = adapter->itr;
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- adapter->itr = 20000;
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- break;
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- case 4:
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- e_info("%s set to simplified (2000-8000 ints) "
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- "mode\n", opt.name);
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- adapter->itr_setting = 4;
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- break;
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- default:
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- /*
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- * Save the setting, because the dynamic bits
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- * change itr.
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- */
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- if (e1000_validate_option(&adapter->itr, &opt,
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- adapter) &&
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- (adapter->itr == 3)) {
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- /*
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- * In case of invalid user value,
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- * default to conservative mode.
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- */
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- adapter->itr_setting = adapter->itr;
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- adapter->itr = 20000;
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- } else {
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- /*
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- * Clear the lower two bits because
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- * they are used as control.
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- */
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- adapter->itr_setting =
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- adapter->itr & ~3;
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- }
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- break;
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- }
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+
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+ /*
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+ * Make sure a message is printed for non-special
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+ * values. And in case of an invalid option, display
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+ * warning, use default and got through itr/itr_setting
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+ * adjustment logic below
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+ */
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+ if ((adapter->itr > 4) &&
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+ e1000_validate_option(&adapter->itr, &opt, adapter))
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+ adapter->itr = opt.def;
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} else {
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} else {
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- adapter->itr_setting = opt.def;
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+ /*
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+ * If no option specified, use default value and go
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+ * through the logic below to adjust itr/itr_setting
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+ */
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+ adapter->itr = opt.def;
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+
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+ /*
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+ * Make sure a message is printed for non-special
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+ * default values
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+ */
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+ if (adapter->itr > 40)
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+ e_info("%s set to default %d\n", opt.name,
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+ adapter->itr);
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+ }
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+
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+ adapter->itr_setting = adapter->itr;
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+ switch (adapter->itr) {
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+ case 0:
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+ e_info("%s turned off\n", opt.name);
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+ break;
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+ case 1:
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+ e_info("%s set to dynamic mode\n", opt.name);
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+ adapter->itr = 20000;
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+ break;
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+ case 3:
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+ e_info("%s set to dynamic conservative mode\n",
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+ opt.name);
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adapter->itr = 20000;
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adapter->itr = 20000;
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+ break;
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+ case 4:
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+ e_info("%s set to simplified (2000-8000 ints) mode\n",
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+ opt.name);
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+ break;
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+ default:
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+ /*
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+ * Save the setting, because the dynamic bits
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+ * change itr.
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+ *
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+ * Clear the lower two bits because
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+ * they are used as control.
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+ */
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+ adapter->itr_setting &= ~3;
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+ break;
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}
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}
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}
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}
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{ /* Interrupt Mode */
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{ /* Interrupt Mode */
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