[dpdk-dev] [PATCH] net/bonding: add ethdev ops function for MTU set

[Sharmila Podury <sharmila.podury@gmail.com>]

From: Sharmila Podury <sharmila.podury@att.com>

Set the MTU for bonding device by calling .mtu_set for all
the slaves. Set the MTU only if all slaves support .mtu_set,
and there is no error returned from any slave.

Signed-off-by: Sharmila Podury <sharmila.podury@att.com>
Acked-by: Declan Doherty <declan.doherty@intel.com>
---
 drivers/net/bonding/rte_eth_bond_pmd.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index fe2328954..183bdbafc 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -2707,6 +2707,34 @@ bond_ethdev_rss_hash_conf_get(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static int
+bond_ethdev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct rte_eth_dev *slave_eth_dev;
+	struct bond_dev_private *internals = dev->data->dev_private;
+	int ret, i;
+
+	rte_spinlock_lock(&internals->lock);
+
+	for (i = 0; i < internals->slave_count; i++) {
+		slave_eth_dev = &rte_eth_devices[internals->slaves[i].port_id];
+		if (*slave_eth_dev->dev_ops->mtu_set == NULL) {
+			rte_spinlock_unlock(&internals->lock);
+			return -ENOTSUP;
+		}
+	}
+	for (i = 0; i < internals->slave_count; i++) {
+		ret = rte_eth_dev_set_mtu(internals->slaves[i].port_id, mtu);
+		if (ret < 0) {
+			rte_spinlock_unlock(&internals->lock);
+			return ret;
+		}
+	}
+
+	rte_spinlock_unlock(&internals->lock);
+	return 0;
+}
+
 const struct eth_dev_ops default_dev_ops = {
 	.dev_start            = bond_ethdev_start,
 	.dev_stop             = bond_ethdev_stop,
@@ -2726,7 +2754,8 @@ const struct eth_dev_ops default_dev_ops = {
 	.reta_update          = bond_ethdev_rss_reta_update,
 	.reta_query           = bond_ethdev_rss_reta_query,
 	.rss_hash_update      = bond_ethdev_rss_hash_update,
-	.rss_hash_conf_get    = bond_ethdev_rss_hash_conf_get
+	.rss_hash_conf_get    = bond_ethdev_rss_hash_conf_get,
+	.mtu_set              = bond_ethdev_mtu_set
 };
 
 static int
-- 
2.11.0