[dpdk-dev] [PATCH 1/2] net/bonding: validate speed after link up

[Eric Kinzie]

It's possible for the bonding driver to mistakenly reject an interface
based in it's, as yet, unnegotiated link speed and duplex.  Always allow
the interface to be added to the bonding interface but require link
properties validation to succeed before slave is activated.

Fixes: 2efb58cbab6e ("bond: new link bonding library")

Signed-off-by: Eric Kinzie <ehkinzie at gmail.com>
---
 drivers/net/bonding/rte_eth_bond_api.c |   15 ---------------
 drivers/net/bonding/rte_eth_bond_pmd.c |   10 ++++++++++
 2 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 203ebe9..3c16973 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -373,21 +373,6 @@ __eth_bond_slave_add_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
 		internals->candidate_max_rx_pktlen = dev_info.max_rx_pktlen;
 
 	} else {
-		/* Check slave link properties are supported if props are set,
-		 * all slaves must be the same */
-		if (internals->link_props_set) {
-			if (link_properties_valid(&(bonded_eth_dev->data->dev_link),
-									  &(slave_eth_dev->data->dev_link))) {
-				slave_eth_dev->data->dev_flags &= (~RTE_ETH_DEV_BONDED_SLAVE);
-				RTE_BOND_LOG(ERR,
-						"Slave port %d link speed/duplex not supported",
-						slave_port_id);
-				return -1;
-			}
-		} else {
-			link_properties_set(bonded_eth_dev,
-					&(slave_eth_dev->data->dev_link));
-		}
 		internals->rx_offload_capa &= dev_info.rx_offload_capa;
 		internals->tx_offload_capa &= dev_info.tx_offload_capa;
 		internals->flow_type_rss_offloads &= dev_info.flow_type_rss_offloads;
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index b20a272..25fe00a 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -1985,6 +1985,16 @@ bond_ethdev_lsc_event_callback(uint8_t port_id, enum rte_eth_event_type type,
 			/* Inherit eth dev link properties from first active slave */
 			link_properties_set(bonded_eth_dev,
 					&(slave_eth_dev->data->dev_link));
+		} else {
+			if (link_properties_valid(
+				&bonded_eth_dev->data->dev_link, &link) != 0) {
+				slave_eth_dev->data->dev_flags &=
+					(~RTE_ETH_DEV_BONDED_SLAVE);
+				RTE_LOG(ERR, PMD,
+					"port %u invalid speed/duplex\n",
+					port_id);
+				return;
+			}
 		}
 
 		activate_slave(bonded_eth_dev, port_id);
-- 
1.7.10.4