<html><head/><body><html><head></head><body><br><br><div class="gmail_quote">Jon Miller <jonebird@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<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>
<p style="margin-top: 2.5em; margin-bottom: 1em; border-bottom: 1px solid #000"></p><pre style="white-space: pre-wrap; word-wrap:break-word; font-family: sans-serif; margin-top: 0px"><hr /><br />colug-432 mailing list<br />colug-432@colug.net<br /><a href="http://lists.colug.net/mailman/listinfo/colug-432">http://lists.colug.net/mailman/listinfo/colug-432</a><br /></pre></blockquote></div><br>
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