[PATCH v2] net/bonding: make bonded device configure method re-entrant
Ivan Malov
ivan.malov at oktetlabs.ru
Tue Oct 18 21:45:49 CEST 2022
According to the documentation, rte_eth_dev_configure()
can be invoked repeatedly while in stopped state.
The current implementation in the bonding driver
allows for that (technically), but the user sees
warnings which say that back-end devices have
already been harnessed. Re-factor the code
to have cleanup before each (re-)configure.
Signed-off-by: Ivan Malov <ivan.malov at oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
Acked-by: Chas Williams <3chas3 at gmail.com>
---
drivers/net/bonding/rte_eth_bond_pmd.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index 27005c747c..486b7fc9f7 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -2148,18 +2148,14 @@ bond_ethdev_stop(struct rte_eth_dev *eth_dev)
return 0;
}
-int
-bond_ethdev_close(struct rte_eth_dev *dev)
+static void
+bond_ethdev_cfg_cleanup(struct rte_eth_dev *dev)
{
struct bond_dev_private *internals = dev->data->dev_private;
uint16_t bond_port_id = internals->port_id;
int skipped = 0;
struct rte_flow_error ferror;
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
- return 0;
-
- RTE_BOND_LOG(INFO, "Closing bonded device %s", dev->device->name);
while (internals->slave_count != skipped) {
uint16_t port_id = internals->slaves[skipped].port_id;
@@ -2178,6 +2174,20 @@ bond_ethdev_close(struct rte_eth_dev *dev)
}
}
bond_flow_ops.flush(dev, &ferror);
+}
+
+int
+bond_ethdev_close(struct rte_eth_dev *dev)
+{
+ struct bond_dev_private *internals = dev->data->dev_private;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ RTE_BOND_LOG(INFO, "Closing bonded device %s", dev->device->name);
+
+ bond_ethdev_cfg_cleanup(dev);
+
bond_ethdev_free_queues(dev);
rte_bitmap_reset(internals->vlan_filter_bmp);
rte_bitmap_free(internals->vlan_filter_bmp);
@@ -3610,6 +3620,9 @@ bond_ethdev_configure(struct rte_eth_dev *dev)
unsigned i, j;
+
+ bond_ethdev_cfg_cleanup(dev);
+
/*
* If RSS is enabled, fill table with default values and
* set key to the value specified in port RSS configuration.
--
2.30.2
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