diff mbox series

[v4,2/4] RDMA/core: Set gid_attr.ndev for iWARP devices

Message ID 168744723080.136340.15471993685775481944.stgit@manet.1015granger.net (mailing list archive)
State Superseded
Headers show
Series Handle ARPHRD_NONE devices for siw | expand

Commit Message

Chuck Lever June 22, 2023, 3:20 p.m. UTC 
From: Chuck Lever <chuck.lever@oracle.com>

Have the iwarp side properly set the ndev in the device's sgid_attrs
so that address resolution can treat it more like a RoCE device.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 drivers/infiniband/core/cache.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 2e91d8879326..717524fe8a39 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -1439,6 +1439,7 @@  static int config_non_roce_gid_cache(struct ib_device *device,
 {
 	struct ib_gid_attr gid_attr = {};
 	struct ib_gid_table *table;
+	struct net_device *ndev;
 	int ret = 0;
 	int i;
 
@@ -1457,10 +1458,21 @@  static int config_non_roce_gid_cache(struct ib_device *device,
 				 i);
 			goto err;
 		}
+
+		ndev = NULL;
+		if (rdma_protocol_iwarp(device, port)) {
+			ndev = ib_device_get_netdev(device, port);
+			if (!ndev)
+				continue;
+			RCU_INIT_POINTER(gid_attr.ndev, ndev);
+		}
+
 		gid_attr.index = i;
 		tprops->subnet_prefix =
 			be64_to_cpu(gid_attr.gid.global.subnet_prefix);
 		add_modify_gid(table, &gid_attr);
+
+		dev_put(ndev);
 	}
 err:
 	mutex_unlock(&table->lock);