From: Dragos Tatulea <dtatulea@xxxxxxxxxx>
Make sure that non-enhanced IPoIB queues are configured with only
1 tx and rx queues over netlink. This behavior is consistent with the
sysfs child_create configuration.
The cited commit opened up the possibility for child PKEY interface
to have multiple tx/rx queues. It is the driver's responsibility to
re-adjust the queue count accordingly. This patch does exactly that:
non-enhanced IPoIB supports only 1 tx and 1 rx queue.
Fixes: dbc94a0fb817 ("IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces")
Signed-off-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxxx
---
Changelog:
v2:
* Changed implementation
v1: https://lore.kernel.org/all/752143b0eef72a966662ce94526b1ceb5ba4bbb3.1674234106.git.leon@xxxxxxxxxx
* Fixed typo in warning print.
v0: https://lore.kernel.org/all/4a7ecec08ee30ad8004019818fadf1e58057e945.1674137153.git.leon@xxxxxxxxxx>
---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index ac25fc80fb33..f10d4bcf87d2 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -2200,6 +2200,14 @@ int ipoib_intf_init(struct ib_device *hca, u32 port, const char *name,
rn->attach_mcast = ipoib_mcast_attach;
rn->detach_mcast = ipoib_mcast_detach;
rn->hca = hca;
+
+ rc = netif_set_real_num_tx_queues(dev, 1);
+ if (rc)
+ goto out;
+
+ rc = netif_set_real_num_rx_queues(dev, 1);
+ if (rc)
+ goto out;
}
priv->rn_ops = dev->netdev_ops;
--
2.39.1
