patch-2.4.20 linux-2.4.20/Documentation/networking/dl2k.txt

• Lines: 68
• Date: Thu Nov 28 15:53:08 2002
• Orig file: linux-2.4.19/Documentation/networking/dl2k.txt
• Orig date: Fri Aug 2 17:39:42 2002

diff -urN linux-2.4.19/Documentation/networking/dl2k.txt linux-2.4.20/Documentation/networking/dl2k.txt
@@ -1,7 +1,7 @@
 
     D-Link DL2000-based Gigabit Ethernet Adapter Installation
     for Linux
-    Jan 29, 2002
+    May 23, 2002
 
 Contents
 ========
@@ -202,7 +202,7 @@
 				  1000mbps_fd and 1000mbps_hd types are only
 				  available for fiber adapter.
 
-vlan=[0|1]			- Specifies the VLAN ID. If vlan=0, the
+vlan=n				- Specifies the VLAN ID. If vlan=0, the
 				  Virtual Local Area Network (VLAN) function is
 				  disable.
 
@@ -211,24 +211,34 @@
 				  function is disabled.
 				  Jumbo frame usually improve the performance
 				  int gigabit.
+				  This feature need jumbo frame compatible 
+				  remote.
 				  
-rx_coalesce=n			- Rx frame count each interrupt.
-rx_timeout=n			- Rx DMA wait time for an interrupt. Proper 
-				  values of rx_coalesce and rx_timeout bring 
-				  a conspicuous performance in the fast machine.
-				  Ex. rx_coalesce=5 and rx_timeout=750 
-
-tx_coalesce=n			- Tx transmit count each TxComp interrupt.
-				  Setting value larger than 1 will improve 
-				  performance, but this is possible to lower 
-				  stability in slow UP machines. By default, 
-				  tx_coalesce=1. (dl2k)
+rx_coalesce=m			- Number of rx frame handled each interrupt.
+rx_timeout=n			- Rx DMA wait time for an interrupt. 
+				  If set rx_coalesce > 0, hardware only assert 
+				  an interrupt for m frames. Hardware won't 
+				  assert rx interrupt until m frames received or
+				  reach timeout of n * 640 nano seconds. 
+				  Set proper rx_coalesce and rx_timeout can 
+				  reduce congestion collapse and overload which
+				  has been a bottlenect for high speed network.
 				  
-tx_flow=[1|0]			- Specifies the Tx flow control. If tx_flow=1, 
-				  the Tx flow control enable.
+				  For example, rx_coalesce=10 rx_timeout=800.
+				  that is, hardware assert only 1 interrupt 
+				  for 10 frames received or timeout of 512 us. 
+
+tx_coalesce=n			- Number of tx frame handled each interrupt.
+				  Set n > 1 can reduce the interrupts 
+				  congestion usually lower performance of
+				  high speed network card. Default is 16.
 				  
-rx_flow=[1|0]			- Specifies the Rx flow control. If rx_flow=1, 
-				  the Rx flow control enable.
+tx_flow=[1|0]			- Specifies the Tx flow control. If tx_flow=0, 
+				  the Tx flow control disable else driver
+				  autodetect.
+rx_flow=[1|0]			- Specifies the Rx flow control. If rx_flow=0, 
+				  the Rx flow control enable else driver
+				  autodetect.
 
 
 Configuration Script Sample