<html>
<head>
<base href="https://bugs.dpdk.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - PMD does not work with –no-huge EAL command line parameter"
href="https://bugs.dpdk.org/show_bug.cgi?id=1631">1631</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>PMD does not work with –no-huge EAL command line parameter
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>nandinipersad361@gmail.com
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Currently, the DPDK does not store any information about memory allocated by
malloc() (for example, NUMA node, physical address), hence PMDs do not work
when the --no-huge command line parameter is supplied to EAL. This happens when
using non-IOMMU based UIO drivers (i.e. igb_uio or uio_pci_generic) or when
IOVA mode is explicitly set to use physical addresses (via the --iova-mode=pa
EAL parameter).
Implication:
Sending and receiving data with PMD will not work. Unit tests checking
--no-huge operation will fail if there is a device bound to the PMD
(eal_flags_n_opt_autotest, eal_flags_no_huge_autotest,
eal_flags_vdev_opt_autotest, eal_flags_misc_autotest).
Resolution/Workaround:
Use huge page memory or use VFIO to map devices.
Affected Environment/Platform:
Systems running the DPDK on Linux
Driver/Module:
Poll Mode Driver (PMD).
</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
<link itemprop="url" href="https://bugs.dpdk.org/show_bug.cgi?id=1631">
<meta itemprop="name" content="View bug">
</div>
<meta itemprop="description" content="Bugzilla bug update notification">
</div>
</body>
</html>