[dpdk-dev,V3,3/4] bond: active slaves with no primary

Message ID 1456853522-4864-4-git-send-email-ehkinzie@gmail.com (mailing list archive)
State Accepted, archived
Delegated to: Bruce Richardson
Headers

Commit Message

Eric Kinzie March 1, 2016, 5:32 p.m. UTC
  From: Eric Kinzie <ekinzie@brocade.com>

If the link state of a slave is "up" when added, it is added to the list
of active slaves but, even if it is the only slave, is not selected as
the primary interface.  Generally, handling of link state interrupts
selects an interface to be primary, but only if the active count is zero.
This change avoids the situation where there are active slaves but
no primary.

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

Signed-off-by: Eric Kinzie <ekinzie@brocade.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Declan Doherty <declan.doherty@intel.com>
---
 drivers/net/bonding/rte_eth_bond_api.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
  

Patch

diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 8a000c8..630a461 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -427,8 +427,13 @@  __eth_bond_slave_add_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
 	if (bonded_eth_dev->data->dev_started) {
 		rte_eth_link_get_nowait(slave_port_id, &link_props);
 
-		 if (link_props.link_status == 1)
+		 if (link_props.link_status == 1) {
+			if (internals->active_slave_count == 0 &&
+			    !internals->user_defined_primary_port)
+				bond_ethdev_primary_set(internals,
+							slave_port_id);
 			activate_slave(bonded_eth_dev, slave_port_id);
+		}
 	}
 	return 0;