[PATCH v4] app/testpmd: fix port status of slave device

["Min Hu (Connor)" <humin29@huawei.com>]

From: Huisong Li <lihuisong@huawei.com>

Starting or stopping a bonded port also starts or stops all active slaves
under the bonded port. If this port is a bonded device, we need to modify
the port status of all slaves.

Fixes: 0e545d3047fe ("app/testpmd: check stopping port is not in bonding")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Aman Singh <aman.deep.singh@intel.com>
---
v4:
* set 'ifdef logic' grouped inside change_bonding_slave_port_status.
---
 app/test-pmd/cmdline.c |  1 +
 app/test-pmd/testpmd.c | 73 +++++++++++++++++++++++++++++++++++++++---
 app/test-pmd/testpmd.h |  3 +-
 3 files changed, 72 insertions(+), 5 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 6ffea8e21a..d9fc7a88bd 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -6671,6 +6671,7 @@ static void cmd_create_bonded_device_parsed(void *parsed_result,
 				"Failed to enable promiscuous mode for port %u: %s - ignore\n",
 				port_id, rte_strerror(-ret));
 
+		ports[port_id].bond_flag = 1;
 		ports[port_id].need_setup = 0;
 		ports[port_id].port_status = RTE_PORT_STOPPED;
 	}
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index fe2ce19f99..51fa344bb2 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -66,6 +66,9 @@
 #ifdef RTE_EXEC_ENV_WINDOWS
 #include <process.h>
 #endif
+#ifdef RTE_NET_BOND
+#include <rte_eth_bond.h>
+#endif
 
 #include "testpmd.h"
 
@@ -597,11 +600,58 @@ eth_dev_configure_mp(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
 	return 0;
 }
 
+static int
+change_bonding_slave_port_status(portid_t bond_pid, bool is_stop)
+{
+#ifdef RTE_NET_BOND
+
+	portid_t slave_pids[RTE_MAX_ETHPORTS];
+	struct rte_port *port;
+	int num_slaves;
+	portid_t slave_pid;
+	int i;
+
+	num_slaves = rte_eth_bond_slaves_get(bond_pid, slave_pids,
+						RTE_MAX_ETHPORTS);
+	if (num_slaves < 0) {
+		fprintf(stderr, "Failed to get slave list for port = %u\n",
+			bond_pid);
+		return num_slaves;
+	}
+
+	for (i = 0; i < num_slaves; i++) {
+		slave_pid = slave_pids[i];
+		port = &ports[slave_pid];
+		port->port_status =
+			is_stop ? RTE_PORT_STOPPED : RTE_PORT_STARTED;
+	}
+#else
+	RTE_SET_USED(bond_pid);
+	RTE_SET_USED(is_stop);
+#endif
+	return 0;
+}
+
 static int
 eth_dev_start_mp(uint16_t port_id)
 {
-	if (is_proc_primary())
-		return rte_eth_dev_start(port_id);
+	int ret;
+
+	if (is_proc_primary()) {
+		ret = rte_eth_dev_start(port_id);
+		if (ret != 0)
+			return ret;
+
+		struct rte_port *port = &ports[port_id];
+
+		/*
+		 * Starting a bonded port also starts all slaves under the bonded
+		 * device. So if this port is bond device, we need to modify the
+		 * port status of these slaves.
+		 */
+		if (port->bond_flag == 1)
+			return change_bonding_slave_port_status(port_id, false);
+	}
 
 	return 0;
 }
@@ -609,8 +659,23 @@ eth_dev_start_mp(uint16_t port_id)
 static int
 eth_dev_stop_mp(uint16_t port_id)
 {
-	if (is_proc_primary())
-		return rte_eth_dev_stop(port_id);
+	int ret;
+
+	if (is_proc_primary()) {
+		ret = rte_eth_dev_stop(port_id);
+		if (ret != 0)
+			return ret;
+
+		struct rte_port *port = &ports[port_id];
+
+		/*
+		 * Stopping a bonded port also stops all slaves under the bonded
+		 * device. So if this port is bond device, we need to modify the
+		 * port status of these slaves.
+		 */
+		if (port->bond_flag == 1)
+			return change_bonding_slave_port_status(port_id, true);
+	}
 
 	return 0;
 }
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 31f766c965..67f253b30e 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -266,7 +266,8 @@ struct rte_port {
 	uint32_t                mc_addr_nb; /**< nb. of addr. in mc_addr_pool */
 	queueid_t               queue_nb; /**< nb. of queues for flow rules */
 	uint32_t                queue_sz; /**< size of a queue for flow rules */
-	uint8_t                 slave_flag; /**< bonding slave port */
+	uint8_t                 slave_flag : 1, /**< bonding slave port */
+				bond_flag : 1; /**< port is bond device */
 	struct port_template    *pattern_templ_list; /**< Pattern templates. */
 	struct port_template    *actions_templ_list; /**< Actions templates. */
 	struct port_table       *table_list; /**< Flow tables. */
-- 
2.33.0