git: 70510800d1ad - main - mlx5: Enter network epoch when using if_foreach()

The branch main has been updated by jhibbits:

URL: https://cgit.FreeBSD.org/src/commit/?id=70510800d1ada1a92dc22bc74e57e9bb4fbaccc3

commit 70510800d1ada1a92dc22bc74e57e9bb4fbaccc3
Author:     Justin Hibbits <jhibbits@FreeBSD.org>
AuthorDate: 2023-02-21 19:43:53 +0000
Commit:     Justin Hibbits <jhibbits@FreeBSD.org>
CommitDate: 2023-03-06 16:04:15 +0000

    mlx5: Enter network epoch when using if_foreach()
    
    Summary: IFNET_RLOCK() is not sufficient, the epoch needs entered.
    
    Reviewed by:    hselasky
    Sponsored by:   Juniper Networks, Inc.
    Differential Revision: https://reviews.freebsd.org/D38711
---
 sys/dev/mlx5/mlx5_ib/mlx5_ib_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/dev/mlx5/mlx5_ib/mlx5_ib_main.c b/sys/dev/mlx5/mlx5_ib/mlx5_ib_main.c
index 629ecf3e5755..0b0a4b2019a0 100644
--- a/sys/dev/mlx5/mlx5_ib/mlx5_ib_main.c
+++ b/sys/dev/mlx5/mlx5_ib/mlx5_ib_main.c
@@ -3150,18 +3150,19 @@ mlx5_enable_roce_if_cb(if_t ifp, void *arg)
 
 static int mlx5_enable_roce(struct mlx5_ib_dev *dev)
 {
+	struct epoch_tracker et;
 	VNET_ITERATOR_DECL(vnet_iter);
 	int err;
 
 	/* Check if mlx5en net device already exists */
 	VNET_LIST_RLOCK();
+	NET_EPOCH_ENTER(et);
 	VNET_FOREACH(vnet_iter) {
-		IFNET_RLOCK();
 		CURVNET_SET_QUIET(vnet_iter);
 		if_foreach(mlx5_enable_roce_if_cb, dev);
 		CURVNET_RESTORE();
-		IFNET_RUNLOCK();
 	}
+	NET_EPOCH_EXIT(et);
 	VNET_LIST_RUNLOCK();
 
 	dev->roce.nb.notifier_call = mlx5_netdev_event;