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Michael Brown d5e273e5c2 [e1000] Request notification of TX completions 
The RS bit is used to instruct the NIC to update the TX descriptor
status byte.  The RPS bit is used to instruct the NIC to defer this
update until after the packet has been transmitted on the wire (rather
than merely read into the transmit FIFO).

The driver currently sets RPS but not RS.  Some e1000 models seem to
interpret this as implying that the status byte should be updated;
some don't.  On the ones that don't, we never see any TX completions
and so rapidly run out of TX buffers.

Fix by setting the RS bit in the TX descriptor.  (We don't care about
when the packet reaches the wire, so don't bother setting the RPS
bit.)

Reported-by: Miroslav Halas <miroslav.halas@bankofamerica.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2011-12-06 01:50:28 +00:00
contrib [contrib] Update rom-o-matic to build iPXE 2011-05-06 18:33:05 +01:00
src [e1000] Request notification of TX completions 2011-12-06 01:50:28 +00:00
COPYING Initial revision 2005-05-17 16:44:57 +00:00
COPYRIGHTS [build] Rename gPXE to iPXE 2010-04-19 23:43:39 +01:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org