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<base href="https://bugs.dpdk.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - examples/l3fwd: in eventmode RX queue setup doesn't obey numa"
href="https://bugs.dpdk.org/show_bug.cgi?id=1393">1393</a>
</td>
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<tr>
<th>Summary</th>
<td>examples/l3fwd: in eventmode RX queue setup doesn't obey numa
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>23.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>examples
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>konstantin.v.ananyev@yandex.ru
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Reproducible with latest DPDK main branch (24.03.rc1)
Starting l3fwd in event mode with all cores/NICs on numa-socket #1 will fail:
dpdk-l3fwd --lcores=49,51,53,57 -n 6 \
-a ca:00.0 -a ca:00.1 -a cb:00.0 -a cb:00.1 -s 0x8000000000000 --vdev event_sw0
-- \
-L -P -p f --rx-queue-size 1024 --tx-queue-size 1024 --mode eventdev \
--eventq-sched=ordered --rule_ipv4=test/l3fwd_lpm_v4_u1.cfg \
--rule_ipv6=test/l3fwd_lpm_v6_u1.cfg
....
...
ETHDEV: Ambiguous Rx mempools configuration
EAL: Error - exiting with code: 1
Cause: rte_eth_rx_queue_setup: err=-22, port=0, eth_qid: 0
Reason for that:
all lcores I specified are from numa-socket #1, so there is no mempool for
numa-socket #0, while in event mode l3fwd_eth_dev_port_setup() *always* tries
to use mempool for numa-socket 0.
examples/l3fwd/l3fwd_event.c:
static void
l3fwd_eth_dev_port_setup(struct rte_eth_conf *port_conf)
{
...
for (eth_qid = 0; eth_qid < evt_rsrc->eth_rx_queues;
eth_qid++) {
if (!evt_rsrc->per_port_pool)
ret = rte_eth_rx_queue_setup(port_id, eth_qid,
nb_rxd, 0, &rxconf,
evt_rsrc->pkt_pool[0][0]);
else
ret = rte_eth_rx_queue_setup(port_id, eth_qid,
nb_rxd, 0, &rxconf,
evt_rsrc->pkt_pool[port_id][0]);
For proper numa support, I expect it to be something like:
int socket_id = l3fwd_event_deduce_rx_service_socket_id(...);
ret = rte_eth_rx_queue_setup(..., evt_rsrc->pkt_pool[port_id][socket_id]);
To overcome the problem, use '--no-numa' l3fwd cmd-line flag.
</pre>
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