[PATCH v5] net/bonding: fix slave add for mode 4

[Radu Nicolau <radu.nicolau@intel.com>]

Moved the link status validity check from the slave add to the slave
activation step. Otherwise slave add will fail for mode 4 if
the ports are all stopped but only one of them checked.

Removed activate slave call from slave add function.

Fixes: b77d21cc2364 ("ethdev: add link status get/set helper functions")
Bugzilla ID: 52
Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
v5: removed activate_slave call from slave add
v4: reworked patch
v3: updated commit msg
v2: add fix and Bugzilla references

 drivers/net/bonding/rte_eth_bond_api.c | 13 -------------
 drivers/net/bonding/rte_eth_bond_pmd.c | 11 +++++++++++
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 49fa2d7..8bc04cf 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -345,14 +345,6 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
 		internals->tx_queue_offload_capa &= dev_info.tx_queue_offload_capa;
 		internals->flow_type_rss_offloads &= dev_info.flow_type_rss_offloads;
 
-		if (link_properties_valid(bonded_eth_dev,
-				&slave_eth_dev->data->dev_link) != 0) {
-			RTE_BOND_LOG(ERR, "Invalid link properties for slave %d"
-					" in bonding mode %d", slave_port_id,
-					internals->mode);
-			return -1;
-		}
-
 		/* RETA size is GCD of all slaves RETA sizes, so, if all sizes will be
 		 * the power of 2, the lower one is GCD
 		 */
@@ -412,11 +404,6 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
 			    !internals->user_defined_primary_port)
 				bond_ethdev_primary_set(internals,
 							slave_port_id);
-
-			if (find_slave_by_id(internals->active_slaves,
-					     internals->active_slave_count,
-					     slave_port_id) == internals->active_slave_count)
-				activate_slave(bonded_eth_dev, slave_port_id);
 		}
 	}
 
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index fc4d4fd..c156888 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -2732,6 +2732,17 @@ bond_ethdev_lsc_event_callback(uint16_t port_id, enum rte_eth_event_type type,
 			mac_address_slaves_update(bonded_eth_dev);
 		}
 
+		/* check link state properties if bonded link is up*/
+		if (bonded_eth_dev->data->dev_link.link_status == ETH_LINK_UP) {
+			if (link_properties_valid(bonded_eth_dev, &link) != 0)
+				RTE_BOND_LOG(ERR, "Invalid link properties "
+					     "for slave %d in bonding mode %d",
+					     port_id, internals->mode);
+		} else {
+			/* inherit slave link properties */
+			link_properties_set(bonded_eth_dev, &link);
+		}
+
 		activate_slave(bonded_eth_dev, port_id);
 
 		/* If user has defined the primary port then default to using it */
-- 
2.7.5