https://bugs.dpdk.org/show_bug.cgi?id=1138
Bug ID: 1138
Summary: net/i40e all packets dropped after
rte_eth_dev_flow_ctrl_set
Product: DPDK
Version: 21.11
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: hanshuan...@gmail.com
Target Milestone: ---
My program call rte_eth_dev_flow_ctrl_set after rte_eth_dev_start. I found that
x710 dropped all packets(rx_dropped_packets in xstats).
I have used testpmd to confirm the problem:
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index da29858..eb11789 100755
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2928,6 +2928,16 @@ struct extmem_param {
continue;
}
+ {
+ struct rte_eth_fc_conf fc_conf = {
+ .autoneg = 0,
+ .mode = RTE_FC_NONE,
+ };
+
+ if (!rte_eth_dev_flow_ctrl_set(pi, &fc_conf))
+ printf("set port %d flow ctrl\n", pi);
+ }
+
if (port->port_status == RTE_PORT_HANDLING)
port->port_status = RTE_PORT_STARTED;
else
If I stop and start the port again, packet will be received as good.
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