Commit c20e48a5 authored by Jeb J. Cramer's avatar Jeb J. Cramer Committed by Jeff Garzik

e1000 10/10:

* Documentation/networking/e1000.txt updates 
parent b598a404
Linux* Base Driver for the Intel(R) PRO/1000 Family of Adapters Linux* Base Driver for the Intel(R) PRO/1000 Family of Adapters
=============================================================== ===============================================================
August 6, 2002 October 12, 2002
Contents Contents
...@@ -20,7 +20,7 @@ In This Release ...@@ -20,7 +20,7 @@ In This Release
=============== ===============
This file describes the Linux* Base Driver for the Intel(R) PRO/1000 Family This file describes the Linux* Base Driver for the Intel(R) PRO/1000 Family
of Adapters, version 4.3.x. This driver includes support for of Adapters, version 4.4.x. This driver includes support for
Itanium(TM)-based systems. Itanium(TM)-based systems.
This release version includes the following: This release version includes the following:
...@@ -32,7 +32,7 @@ This release version includes the following: ...@@ -32,7 +32,7 @@ This release version includes the following:
default in supporting kernels. It is not supported on the Intel(R) default in supporting kernels. It is not supported on the Intel(R)
PRO/1000 Gigabit Server Adapter. PRO/1000 Gigabit Server Adapter.
New features include: Features include:
- Support for the 82545 and 82546-based adapters listed below - Support for the 82545 and 82546-based adapters listed below
...@@ -144,8 +144,7 @@ Default Value: 80 ...@@ -144,8 +144,7 @@ Default Value: 80
RxIntDelay RxIntDelay
Valid Range: 0-65535 (0=off) Valid Range: 0-65535 (0=off)
Default Value: 0 (82542, 82543, and 82544-based adapters) Default Value: 0
128 (82540, 82545, and 82546-based adapters)
This value delays the generation of receive interrupts in units of 1.024 This value delays the generation of receive interrupts in units of 1.024
microseconds. Receive interrupt reduction can improve CPU efficiency if microseconds. Receive interrupt reduction can improve CPU efficiency if
properly tuned for specific network traffic. Increasing this value adds properly tuned for specific network traffic. Increasing this value adds
...@@ -154,13 +153,12 @@ Default Value: 0 (82542, 82543, and 82544-based adapters) ...@@ -154,13 +153,12 @@ Default Value: 0 (82542, 82543, and 82544-based adapters)
may be set too high, causing the driver to run out of available receive may be set too high, causing the driver to run out of available receive
descriptors. descriptors.
CAUTION: When setting RxIntDelay to a value other than 0, adapters based CAUTION: When setting RxIntDelay to a value other than 0, adapters may
on the Intel 82543 and 82544 LAN controllers may hang (stop hang (stop transmitting) under certain network conditions. If
transmitting) under certain network conditions. If this occurs a this occurs a NETDEV WATCHDOG message is logged in the system
message is logged in the system event log. In addition, the event log. In addition, the controller is automatically reset,
controller is automatically reset, restoring the network restoring the network connection. To eliminate the potential for
connection. To eliminate the potential for the hang ensure that the hang ensure that RxIntDelay is set to 0.
RxIntDelay is set to 0.
RxAbsIntDelay (82540, 82545, and 82546-based adapters only) RxAbsIntDelay (82540, 82545, and 82546-based adapters only)
Valid Range: 0-65535 (0=off) Valid Range: 0-65535 (0=off)
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