app/testpmd: fix forwarding between non consecutive ports

When defining two failsafe devices in testpmd the port numbers of the
failsafe devices may not be consecutive.
For example: if failsafe device includes a PCI device and a TAP device
then failsafe port numbers would be 0 and 3.
Port 0 - failsafe #1 device
Port 1 - PCI #1 device
Port 2 - TAP #1 device
Port 3 - failsafe emmericp#2 device
Port 4 - PCI emmericp#2 device
Port 5 - TAP emmericp#2 device

If forwarding is defined between the failsafe devices including a peer
address the forwarding should be between peer addresses of ports 0
and 3. Instead testpmd establishes forwarding between peer addresses
of consecutive ports 0 and 1. This commit fixes this bug.

Fixes: af75078 ("first public release")
Cc: [email protected]

Signed-off-by: Ophir Munk <[email protected]>
Signed-off-by: Raslan Darawsheh <[email protected]>
Acked-by: Pablo de Lara <[email protected]>

app/test-pmd/config.c

@@ -1905,15 +1905,15 @@ simple_fwd_config_setup(void)
 		fwd_streams[i]->rx_queue  = 0;
 		fwd_streams[i]->tx_port   = fwd_ports_ids[j];
 		fwd_streams[i]->tx_queue  = 0;
-		fwd_streams[i]->peer_addr = j;
+		fwd_streams[i]->peer_addr = fwd_streams[i]->tx_port;
 		fwd_streams[i]->retry_enabled = retry_enabled;
 
 		if (port_topology == PORT_TOPOLOGY_PAIRED) {
 			fwd_streams[j]->rx_port   = fwd_ports_ids[j];
 			fwd_streams[j]->rx_queue  = 0;
 			fwd_streams[j]->tx_port   = fwd_ports_ids[i];
 			fwd_streams[j]->tx_queue  = 0;
-			fwd_streams[j]->peer_addr = i;
+			fwd_streams[j]->peer_addr = fwd_streams[j]->tx_port;
 			fwd_streams[j]->retry_enabled = retry_enabled;
 		}
 	}