From: Stephen Hemminger <sthem...@microsoft.com>
The mp_client crashes if run on Azure or any system where ethdev
ports are owned. In that case, the tx_buffer and tx_stats for the
real port were initialized correctly, but the wrong port was used.
For example if the server has Ports 3 and 5. Then calling
rte_eth_tx_buffer_flush on any other buffer will dereference null
because the tx buffer for that port was not allocated.
Fixes: e2366e74e029 ("examples: use buffered Tx")
Signed-off-by: Stephen Hemminger <sthem...@microsoft.com>
---
examples/multi_process/client_server_mp/mp_client/client.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/examples/multi_process/client_server_mp/mp_client/client.c
b/examples/multi_process/client_server_mp/mp_client/client.c
index c23dd3f378f7..c1d2d975b717 100644
--- a/examples/multi_process/client_server_mp/mp_client/client.c
+++ b/examples/multi_process/client_server_mp/mp_client/client.c
@@ -246,15 +246,16 @@ main(int argc, char *argv[])
for (;;) {
uint16_t i, rx_pkts;
- uint16_t port;
rx_pkts = rte_ring_dequeue_burst(rx_ring, pkts,
PKT_READ_SIZE, NULL);
if (unlikely(rx_pkts == 0)){
if (need_flush)
- for (port = 0; port < ports->num_ports; port++)
{
- sent =
rte_eth_tx_buffer_flush(ports->id[port], client_id,
+ for (i = 0; i < ports->num_ports; i++) {
+ uint16_t port = ports->id[i]'
+
+ sent = rte_eth_tx_buffer_flush(ports,
client_id,
tx_buffer[port]);
if (unlikely(sent))
tx_stats->tx[port] += sent;
--
2.20.1
