[PATCH net-next v2 2/2] RDMA/mana_ib: Set correct device into ib

Konstantin Taranov
2024-07-01T13:00:11Z

From: Konstantin Taranov <kotaranov@microsoft.com>

Use the mana_get_master_netdev_rcu() helper to get
a master netdevice for querying network states.
The helper allows the mana_ib transparently
support baremetal and netvsc deployment cases.

Fixes: 8b184e4f1c32 ("RDMA/mana_ib: Enable RoCE on port 1")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
---
drivers/infiniband/hw/mana/device.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/mana/device.c
index b07a8e2..ec849ac 100644
--- a/drivers/infiniband/hw/mana/device.c
+++ b/drivers/infiniband/hw/mana/device.c
@@ -56,7 +56,7 @@ static int mana_ib_probe(struct auxiliary_device *adev,
{
struct mana_adev *madev = container_of(adev, struct mana_adev, adev);
struct gdma_dev *mdev = madev->mdev;
- struct net_device *upper_ndev;
+ struct net_device *ndev;
struct mana_context *mc;
struct mana_ib_dev *dev;
u8 mac_addr[ETH_ALEN];
@@ -84,17 +84,17 @@ static int mana_ib_probe(struct auxiliary_device *adev,
dev->ib_dev.num_comp_vectors = mdev->gdma_context->max_num_queues;
dev->ib_dev.dev.parent = mdev->gdma_context->dev;

- rcu_read_lock(); /* required to get upper dev */
- upper_ndev = netdev_master_upper_dev_get_rcu(mc->ports[0]);
- if (!upper_ndev) {
+ rcu_read_lock(); /* required to get master dev */
+ ndev = mana_get_master_netdev_rcu(mc, 0);
+ if (!ndev) {
rcu_read_unlock();
ret = -ENODEV;
- ibdev_err(&dev->ib_dev, "Failed to get master netdev");
+ ibdev_err(&dev->ib_dev, "Failed to get netdev for IB port 1");
goto free_ib_device;
}
- ether_addr_copy(mac_addr, upper_ndev->dev_addr);
- addrconf_addr_eui48((u8 *)&dev->ib_dev.node_guid, upper_ndev->dev_addr);
- ret = ib_device_set_netdev(&dev->ib_dev, upper_ndev, 1);
+ ether_addr_copy(mac_addr, ndev->dev_addr);
+ addrconf_addr_eui48((u8 *)&dev->ib_dev.node_guid, ndev->dev_addr);
+ ret = ib_device_set_netdev(&dev->ib_dev, ndev, 1);
rcu_read_unlock();
if (ret) {
ibdev_err(&dev->ib_dev, "Failed to set ib netdev, ret %d", ret);
--
2.43.0