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

[Sharmila Podury]

From: Sharmila Podury <sharmila.pod...@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.pod...@att.com>
Acked-by: Declan Doherty <declan.dohe...@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