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+3COM PCI TOKEN LINK VELOCITY XL TOKEN RING CARDS README
+
+Release 0.9.0 - Release   
+	Jul 17th 2000 Mike Phillips 
+
+	1.2.0 - Final
+	Feb 17th 2002 Mike Phillips 
+	Updated for submission to the 2.4.x kernel.
+
+Thanks:
+	Terry Murphy from 3Com for tech docs and support,
+	Adam D. Ligas for testing the driver.
+ 
+Note:
+	This driver will NOT work with the 3C339 Token Ring cards, you need
+to use the tms380 driver instead.
+
+Options:
+
+The driver accepts three options: ringspeed, pkt_buf_sz and message_level.
+
+These options can be specified differently for each card found. 
+
+ringspeed:  Has one of three settings 0 (default), 4 or 16.  0 will 
+make the card autosense the ringspeed and join at the appropriate speed, 
+this will be the default option for most people.  4 or 16 allow you to 
+explicitly force the card to operate at a certain speed.  The card will fail 
+if you try to insert it at the wrong speed. (Although some hubs will allow 
+this so be *very* careful).  The main purpose for explicitly setting the ring
+speed is for when the card is first on the ring.  In autosense mode, if the card
+cannot detect any active monitors on the ring it will open at the same speed as
+its last opening. This can be hazardous if this speed does not match the speed
+you want the ring to operate at.  
+
+pkt_buf_sz:  This is this initial receive buffer allocation size.  This will
+default to 4096 if no value is entered. You may increase performance of the 
+driver by setting this to a value larger than the network packet size, although
+the driver now re-sizes buffers based on MTU settings as well. 
+
+message_level: Controls level of messages created by the driver. Defaults to 0:
+which only displays start-up and critical messages.  Presently any non-zero 
+value will display all soft messages as well.  NB This does not turn 
+debugging messages on, that must be done by modified the source code.
+
+Variable MTU size:
+
+The driver can handle a MTU size up to either 4500 or 18000 depending upon 
+ring speed.  The driver also changes the size of the receive buffers as part
+of the mtu re-sizing, so if you set mtu = 18000, you will need to be able
+to allocate 16 * (sk_buff with 18000 buffer size) call it 18500 bytes per ring 
+position = 296,000 bytes of memory space, plus of course anything 
+necessary for the tx sk_buff's.  Remember this is per card, so if you are
+building routers, gateway's etc, you could start to use a lot of memory
+real fast.
+
+2/17/02 Mike Phillips
+