<div>All,</div> <div> </div> <div>I am running 2.6.11 version of the kernel on MPC8541. Have one of the TSECs configured at 100Mbps/Full Duplex. The TSEC MAC is connected to a Marvell Ethernet switch MAC without any PHY in between. MAC level flow control is enabled but no pause frames sent or received.</div> <div> </div> <div>I see a high number of transmit buffer overrun errors (tx_fifo_empty errors in the gianfar driver). I don't have NAPI enabled. In addition to other things, I was thinking of enabling NAPI and see if it helps - is there any downside to it?? Are there any other parameters that I could tweak to reduce/eliminate the overrun errors??</div> <div> </div> <div>Thanks,</div> <div>Shriram.</div> <div> </div><p> 
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