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<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - DPDK 18.11.5: i40e PMD fails to start X710 port when set mtu."
href="https://bugs.dpdk.org/show_bug.cgi?id=1241">1241</a>
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</tr>
<tr>
<th>Summary</th>
<td>DPDK 18.11.5: i40e PMD fails to start X710 port when set mtu.
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>18.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>ethdev
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>18309220061@163.com
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">When i use the i40e PMD to set the mtu, as follows:
1. rte_eth_dev_ stop
2. rte_eth_dev_set_mtu
3. rte_eth_dev_start
The 1 and 2 steps are normal, but step 3 fails.
Log as follows:
i40e_alloc_rx queue mbufs(): Failed to allocate mbuf for RX
i40e alloc_rx queue mbufs(): Failed to allocate mbuf for RX
i40e dev rx queue start(): Failed to allocate RX queue mbuf
i40e dev switch queues(): Failed to switch rx queues
i40e dev start): Failed to enable VsI
i40e dev rx queue start(): Failed to allocate Rx queue mbuf
i40e dev switch queues(): Failed to switch rx queues
i40e dev start(): Failed to enable VSI
I don't know why?Sometimes it's normal and sometimes it's not.Only X710 nics
has the issue.
</pre>
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