<p>Oops. Sent to the wrong location... </p>
<div class="gmail_quote">---------- Forwarded message ----------<br>From: "Jon Miller" <<a href="mailto:jonebird@gmail.com">jonebird@gmail.com</a>><br>Date: Jul 6, 2012 6:37 PM<br>Subject: Anybody have a NIC that supports queuing Jumbo packets?<br>
To: "Central OH Linux User Group" <<a href="mailto:colugx@colug.net">colugx@colug.net</a>><br><br type="attribution">I'm researching something at work and thus far our x86 hardware variety of NICs hasn't uncovered a model / firmware / driver combination that supported queuing of Jumbo packets. So, I'm curious what the rest of you might find with your HW setups? Try this, if you don't mind:<div>
ethtool --show-ring eth0 # or substitute for your particular interface</div><div><br></div><div>What I'm interested in learning is if any of you are seeing a non-zero value for "RX Jumbo" for the pre-set maximums? If are you seeing a non-zero value, what is your driver / firmware level? (ethtool -i eth0)<br>
<div><br></div></div><div>Thanks,</div><div>Jon Miller</div><div><br></div><div># And for kicks, here is a little shell excerpt to find such a NIC too: (copy & paste this if you'd like)</div><div><div>for inf in $(ip link show | sed -n 's/^[0-9]*: \([^:]*\):.*/\1/p'); do</div>
<div> JUMBO_RING_SIZE=$(($(ethtool --show-ring $inf 2>&1 | sed -n -e '/Current hardware settings/,$d' -e '/^RX Jumbo/p' | awk '{ print $NF }')+0))</div><div> if [ -n "${JUMBO_RING_SIZE}" -a "${JUMBO_RING_SIZE}" -gt 0 ]; then</div>
<div> echo "Found one for you, Jon, on interface $inf"</div><div> ethtool -i $inf</div><div> fi</div><div>done</div></div><div><br></div>
</div>