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authorJakub Kicinski <kuba@kernel.org>2025-05-22 09:15:07 -0700
committerJakub Kicinski <kuba@kernel.org>2025-05-22 09:15:07 -0700
commit3ccf3f441f93f18edbd482d2ef606e5153c5542c (patch)
treee5a890aee3da6824345fee719e443689f815e26e
parenteth: bnxt: fix deadlock when xdp is attached or detached (diff)
parentnet/mlx5e: Convert mlx5 netdevs to instance locking (diff)
downloadwireguard-linux-3ccf3f441f93f18edbd482d2ef606e5153c5542c.tar.xz
wireguard-linux-3ccf3f441f93f18edbd482d2ef606e5153c5542c.zip
Merge branch 'net-mlx5-convert-mlx5-to-netdev-instance-locking'
Tariq Toukan says: ==================== net/mlx5: Convert mlx5 to netdev instance locking Cosmin Ratiu says: mlx5 manages multiple netdevices, from basic Ethernet to Infiniband netdevs. This patch series converts the driver to use netdev instance locking for everything in preparation for TCP devmem Zero Copy. Because mlx5 is tightly coupled with the ipoib driver, a series of changes first happen in ipoib to allow it to work with mlx5 netdevs that use instance locking: IB/IPoIB: Enqueue separate work_structs for each flushed interface IB/IPoIB: Replace vlan_rwsem with the netdev instance lock IB/IPoIB: Allow using netdevs that require the instance lock A small patch then avoids dropping RTNL during firmware update: net/mlx5e: Don't drop RTNL during firmware flash The main patch then converts all mlx5 netdevs to use instance locking: net/mlx5e: Convert mlx5 netdevs to instance locking ==================== Link: https://patch.msgid.link/1747829342-1018757-1-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib.h13
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_ib.c65
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_main.c127
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_verbs.c8
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_vlan.c19
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/health.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c25
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/trap.c12
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_fs.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c82
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_rep.c7
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c3
15 files changed, 246 insertions, 132 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index abe0522b7df4..91f866e3fb8b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -329,14 +329,6 @@ struct ipoib_dev_priv {
unsigned long flags;
- /*
- * This protects access to the child_intfs list.
- * To READ from child_intfs the RTNL or vlan_rwsem read side must be
- * held. To WRITE RTNL and the vlan_rwsem write side must be held (in
- * that order) This lock exists because we have a few contexts where
- * we need the child_intfs, but do not want to grab the RTNL.
- */
- struct rw_semaphore vlan_rwsem;
struct mutex mcast_mutex;
struct rb_root path_tree;
@@ -399,6 +391,9 @@ struct ipoib_dev_priv {
struct ib_event_handler event_handler;
struct net_device *parent;
+ /* 'child_intfs' and 'list' membership of all child devices are
+ * protected by the netdev instance lock of 'dev'.
+ */
struct list_head child_intfs;
struct list_head list;
int child_type;
@@ -512,6 +507,8 @@ int ipoib_intf_init(struct ib_device *hca, u32 port, const char *format,
void ipoib_ib_dev_flush_light(struct work_struct *work);
void ipoib_ib_dev_flush_normal(struct work_struct *work);
void ipoib_ib_dev_flush_heavy(struct work_struct *work);
+void ipoib_queue_work(struct ipoib_dev_priv *priv,
+ enum ipoib_flush_level level);
void ipoib_ib_tx_timeout_work(struct work_struct *work);
void ipoib_ib_dev_cleanup(struct net_device *dev);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 5cde275daa94..10b0dbda6cd5 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -40,6 +40,7 @@
#include <linux/ip.h>
#include <linux/tcp.h>
+#include <net/netdev_lock.h>
#include <rdma/ib_cache.h>
#include "ipoib.h"
@@ -781,16 +782,20 @@ static void ipoib_napi_enable(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
- napi_enable(&priv->recv_napi);
- napi_enable(&priv->send_napi);
+ netdev_lock_ops_to_full(dev);
+ napi_enable_locked(&priv->recv_napi);
+ napi_enable_locked(&priv->send_napi);
+ netdev_unlock_full_to_ops(dev);
}
static void ipoib_napi_disable(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
- napi_disable(&priv->recv_napi);
- napi_disable(&priv->send_napi);
+ netdev_lock_ops_to_full(dev);
+ napi_disable_locked(&priv->recv_napi);
+ napi_disable_locked(&priv->send_napi);
+ netdev_unlock_full_to_ops(dev);
}
int ipoib_ib_dev_stop_default(struct net_device *dev)
@@ -1172,24 +1177,11 @@ out:
}
static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
- enum ipoib_flush_level level,
- int nesting)
+ enum ipoib_flush_level level)
{
- struct ipoib_dev_priv *cpriv;
struct net_device *dev = priv->dev;
int result;
- down_read_nested(&priv->vlan_rwsem, nesting);
-
- /*
- * Flush any child interfaces too -- they might be up even if
- * the parent is down.
- */
- list_for_each_entry(cpriv, &priv->child_intfs, list)
- __ipoib_ib_dev_flush(cpriv, level, nesting + 1);
-
- up_read(&priv->vlan_rwsem);
-
if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags) &&
level != IPOIB_FLUSH_HEAVY) {
/* Make sure the dev_addr is set even if not flushing */
@@ -1253,10 +1245,14 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
ipoib_ib_dev_down(dev);
if (level == IPOIB_FLUSH_HEAVY) {
+ netdev_lock_ops(dev);
if (test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
ipoib_ib_dev_stop(dev);
- if (ipoib_ib_dev_open(dev))
+ result = ipoib_ib_dev_open(dev);
+ netdev_unlock_ops(dev);
+
+ if (result)
return;
if (netif_queue_stopped(dev))
@@ -1280,7 +1276,7 @@ void ipoib_ib_dev_flush_light(struct work_struct *work)
struct ipoib_dev_priv *priv =
container_of(work, struct ipoib_dev_priv, flush_light);
- __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_LIGHT, 0);
+ __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_LIGHT);
}
void ipoib_ib_dev_flush_normal(struct work_struct *work)
@@ -1288,7 +1284,7 @@ void ipoib_ib_dev_flush_normal(struct work_struct *work)
struct ipoib_dev_priv *priv =
container_of(work, struct ipoib_dev_priv, flush_normal);
- __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_NORMAL, 0);
+ __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_NORMAL);
}
void ipoib_ib_dev_flush_heavy(struct work_struct *work)
@@ -1297,10 +1293,35 @@ void ipoib_ib_dev_flush_heavy(struct work_struct *work)
container_of(work, struct ipoib_dev_priv, flush_heavy);
rtnl_lock();
- __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_HEAVY, 0);
+ __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_HEAVY);
rtnl_unlock();
}
+void ipoib_queue_work(struct ipoib_dev_priv *priv,
+ enum ipoib_flush_level level)
+{
+ if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
+ struct ipoib_dev_priv *cpriv;
+
+ netdev_lock(priv->dev);
+ list_for_each_entry(cpriv, &priv->child_intfs, list)
+ ipoib_queue_work(cpriv, level);
+ netdev_unlock(priv->dev);
+ }
+
+ switch (level) {
+ case IPOIB_FLUSH_LIGHT:
+ queue_work(ipoib_workqueue, &priv->flush_light);
+ break;
+ case IPOIB_FLUSH_NORMAL:
+ queue_work(ipoib_workqueue, &priv->flush_normal);
+ break;
+ case IPOIB_FLUSH_HEAVY:
+ queue_work(ipoib_workqueue, &priv->flush_heavy);
+ break;
+ }
+}
+
void ipoib_ib_dev_cleanup(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 3b463db8ce39..f2f5465f2a90 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -49,6 +49,7 @@
#include <linux/jhash.h>
#include <net/arp.h>
#include <net/addrconf.h>
+#include <net/netdev_lock.h>
#include <net/pkt_sched.h>
#include <linux/inetdevice.h>
#include <rdma/ib_cache.h>
@@ -132,6 +133,52 @@ static int ipoib_netdev_event(struct notifier_block *this,
}
#endif
+struct ipoib_ifupdown_work {
+ struct work_struct work;
+ struct net_device *dev;
+ netdevice_tracker dev_tracker;
+ bool up;
+};
+
+static void ipoib_ifupdown_task(struct work_struct *work)
+{
+ struct ipoib_ifupdown_work *pwork =
+ container_of(work, struct ipoib_ifupdown_work, work);
+ struct net_device *dev = pwork->dev;
+ unsigned int flags;
+
+ rtnl_lock();
+ flags = dev->flags;
+ if (pwork->up)
+ flags |= IFF_UP;
+ else
+ flags &= ~IFF_UP;
+
+ if (dev->flags != flags)
+ dev_change_flags(dev, flags, NULL);
+ rtnl_unlock();
+ netdev_put(dev, &pwork->dev_tracker);
+ kfree(pwork);
+}
+
+static void ipoib_schedule_ifupdown_task(struct net_device *dev, bool up)
+{
+ struct ipoib_ifupdown_work *work;
+
+ if ((up && (dev->flags & IFF_UP)) ||
+ (!up && !(dev->flags & IFF_UP)))
+ return;
+
+ work = kmalloc(sizeof(*work), GFP_KERNEL);
+ if (!work)
+ return;
+ work->dev = dev;
+ netdev_hold(dev, &work->dev_tracker, GFP_KERNEL);
+ work->up = up;
+ INIT_WORK(&work->work, ipoib_ifupdown_task);
+ queue_work(ipoib_workqueue, &work->work);
+}
+
int ipoib_open(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
@@ -154,17 +201,10 @@ int ipoib_open(struct net_device *dev)
struct ipoib_dev_priv *cpriv;
/* Bring up any child interfaces too */
- down_read(&priv->vlan_rwsem);
- list_for_each_entry(cpriv, &priv->child_intfs, list) {
- int flags;
-
- flags = cpriv->dev->flags;
- if (flags & IFF_UP)
- continue;
-
- dev_change_flags(cpriv->dev, flags | IFF_UP, NULL);
- }
- up_read(&priv->vlan_rwsem);
+ netdev_lock_ops_to_full(dev);
+ list_for_each_entry(cpriv, &priv->child_intfs, list)
+ ipoib_schedule_ifupdown_task(cpriv->dev, true);
+ netdev_unlock_full_to_ops(dev);
} else if (priv->parent) {
struct ipoib_dev_priv *ppriv = ipoib_priv(priv->parent);
@@ -199,17 +239,10 @@ static int ipoib_stop(struct net_device *dev)
struct ipoib_dev_priv *cpriv;
/* Bring down any child interfaces too */
- down_read(&priv->vlan_rwsem);
- list_for_each_entry(cpriv, &priv->child_intfs, list) {
- int flags;
-
- flags = cpriv->dev->flags;
- if (!(flags & IFF_UP))
- continue;
-
- dev_change_flags(cpriv->dev, flags & ~IFF_UP, NULL);
- }
- up_read(&priv->vlan_rwsem);
+ netdev_lock_ops_to_full(dev);
+ list_for_each_entry(cpriv, &priv->child_intfs, list)
+ ipoib_schedule_ifupdown_task(cpriv->dev, false);
+ netdev_unlock_full_to_ops(dev);
}
return 0;
@@ -426,17 +459,20 @@ static int ipoib_match_gid_pkey_addr(struct ipoib_dev_priv *priv,
}
}
+ if (test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags))
+ return matches;
+
/* Check child interfaces */
- down_read_nested(&priv->vlan_rwsem, nesting);
+ netdev_lock(priv->dev);
list_for_each_entry(child_priv, &priv->child_intfs, list) {
matches += ipoib_match_gid_pkey_addr(child_priv, gid,
- pkey_index, addr,
- nesting + 1,
- found_net_dev);
+ pkey_index, addr,
+ nesting + 1,
+ found_net_dev);
if (matches > 1)
break;
}
- up_read(&priv->vlan_rwsem);
+ netdev_unlock(priv->dev);
return matches;
}
@@ -531,9 +567,11 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
ipoib_warn(priv, "enabling connected mode "
"will cause multicast packet drops\n");
+ netdev_lock_ops(dev);
netdev_update_features(dev);
- dev_set_mtu(dev, ipoib_cm_max_mtu(dev));
+ netif_set_mtu(dev, ipoib_cm_max_mtu(dev));
netif_set_real_num_tx_queues(dev, 1);
+ netdev_unlock_ops(dev);
rtnl_unlock();
priv->tx_wr.wr.send_flags &= ~IB_SEND_IP_CSUM;
@@ -543,9 +581,11 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
if (!strcmp(buf, "datagram\n")) {
clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
+ netdev_lock_ops(dev);
netdev_update_features(dev);
- dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
+ netif_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
netif_set_real_num_tx_queues(dev, dev->num_tx_queues);
+ netdev_unlock_ops(dev);
rtnl_unlock();
ipoib_flush_paths(dev);
return (!rtnl_trylock()) ? -EBUSY : 0;
@@ -1212,6 +1252,7 @@ void ipoib_ib_tx_timeout_work(struct work_struct *work)
int err;
rtnl_lock();
+ netdev_lock_ops(priv->dev);
if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
goto unlock;
@@ -1226,6 +1267,7 @@ void ipoib_ib_tx_timeout_work(struct work_struct *work)
netif_tx_wake_all_queues(priv->dev);
unlock:
+ netdev_unlock_ops(priv->dev);
rtnl_unlock();
}
@@ -1992,9 +2034,9 @@ static int ipoib_ndo_init(struct net_device *ndev)
dev_hold(priv->parent);
- down_write(&ppriv->vlan_rwsem);
+ netdev_lock(priv->parent);
list_add_tail(&priv->list, &ppriv->child_intfs);
- up_write(&ppriv->vlan_rwsem);
+ netdev_unlock(priv->parent);
}
return 0;
@@ -2004,8 +2046,6 @@ static void ipoib_ndo_uninit(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
- ASSERT_RTNL();
-
/*
* ipoib_remove_one guarantees the children are removed before the
* parent, and that is the only place where a parent can be removed.
@@ -2015,9 +2055,9 @@ static void ipoib_ndo_uninit(struct net_device *dev)
if (priv->parent) {
struct ipoib_dev_priv *ppriv = ipoib_priv(priv->parent);
- down_write(&ppriv->vlan_rwsem);
+ netdev_lock(ppriv->dev);
list_del(&priv->list);
- up_write(&ppriv->vlan_rwsem);
+ netdev_unlock(ppriv->dev);
}
ipoib_neigh_hash_uninit(dev);
@@ -2167,7 +2207,6 @@ static void ipoib_build_priv(struct net_device *dev)
priv->dev = dev;
spin_lock_init(&priv->lock);
- init_rwsem(&priv->vlan_rwsem);
mutex_init(&priv->mcast_mutex);
INIT_LIST_HEAD(&priv->path_list);
@@ -2372,10 +2411,10 @@ static void set_base_guid(struct ipoib_dev_priv *priv, union ib_gid *gid)
netif_addr_unlock_bh(netdev);
if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
- down_read(&priv->vlan_rwsem);
+ netdev_lock_ops_to_full(priv->dev);
list_for_each_entry(child_priv, &priv->child_intfs, list)
set_base_guid(child_priv, gid);
- up_read(&priv->vlan_rwsem);
+ netdev_unlock_full_to_ops(priv->dev);
}
}
@@ -2415,6 +2454,14 @@ static int ipoib_set_mac(struct net_device *dev, void *addr)
set_base_guid(priv, (union ib_gid *)(ss->__data + 4));
+ if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
+ struct ipoib_dev_priv *cpriv;
+
+ netdev_lock_ops_to_full(dev);
+ list_for_each_entry(cpriv, &priv->child_intfs, list)
+ queue_work(ipoib_workqueue, &cpriv->flush_light);
+ netdev_unlock_full_to_ops(dev);
+ }
queue_work(ipoib_workqueue, &priv->flush_light);
return 0;
@@ -2526,7 +2573,7 @@ static struct net_device *ipoib_add_port(const char *format,
ib_register_event_handler(&priv->event_handler);
/* call event handler to ensure pkey in sync */
- queue_work(ipoib_workqueue, &priv->flush_heavy);
+ ipoib_queue_work(priv, IPOIB_FLUSH_HEAVY);
ndev->rtnl_link_ops = ipoib_get_link_ops();
@@ -2624,9 +2671,11 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
rtnl_lock();
+ netdev_lock(priv->dev);
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs,
list)
unregister_netdevice_queue(cpriv->dev, &head);
+ netdev_unlock(priv->dev);
unregister_netdevice_queue(priv->dev, &head);
unregister_netdevice_many(&head);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 368e5d77416d..86983080d28b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -280,15 +280,15 @@ void ipoib_event(struct ib_event_handler *handler,
dev_name(&record->device->dev), record->element.port_num);
if (record->event == IB_EVENT_CLIENT_REREGISTER) {
- queue_work(ipoib_workqueue, &priv->flush_light);
+ ipoib_queue_work(priv, IPOIB_FLUSH_LIGHT);
} else if (record->event == IB_EVENT_PORT_ERR ||
record->event == IB_EVENT_PORT_ACTIVE ||
record->event == IB_EVENT_LID_CHANGE) {
- queue_work(ipoib_workqueue, &priv->flush_normal);
+ ipoib_queue_work(priv, IPOIB_FLUSH_NORMAL);
} else if (record->event == IB_EVENT_PKEY_CHANGE) {
- queue_work(ipoib_workqueue, &priv->flush_heavy);
+ ipoib_queue_work(priv, IPOIB_FLUSH_HEAVY);
} else if (record->event == IB_EVENT_GID_CHANGE &&
!test_bit(IPOIB_FLAG_DEV_ADDR_SET, &priv->flags)) {
- queue_work(ipoib_workqueue, &priv->flush_light);
+ ipoib_queue_work(priv, IPOIB_FLUSH_LIGHT);
}
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 562df2b3ef18..243e8f555eca 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -53,8 +53,7 @@ static bool is_child_unique(struct ipoib_dev_priv *ppriv,
struct ipoib_dev_priv *priv)
{
struct ipoib_dev_priv *tpriv;
-
- ASSERT_RTNL();
+ bool result = true;
/*
* Since the legacy sysfs interface uses pkey for deletion it cannot
@@ -73,13 +72,17 @@ static bool is_child_unique(struct ipoib_dev_priv *ppriv,
if (ppriv->pkey == priv->pkey)
return false;
+ netdev_lock(ppriv->dev);
list_for_each_entry(tpriv, &ppriv->child_intfs, list) {
if (tpriv->pkey == priv->pkey &&
- tpriv->child_type == IPOIB_LEGACY_CHILD)
- return false;
+ tpriv->child_type == IPOIB_LEGACY_CHILD) {
+ result = false;
+ break;
+ }
}
+ netdev_unlock(ppriv->dev);
- return true;
+ return result;
}
/*
@@ -98,8 +101,6 @@ int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
int result;
struct rdma_netdev *rn = netdev_priv(ndev);
- ASSERT_RTNL();
-
/*
* We do not need to touch priv if register_netdevice fails, so just
* always use this flow.
@@ -267,6 +268,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
ppriv = ipoib_priv(pdev);
rc = -ENODEV;
+ netdev_lock(ppriv->dev);
list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
if (priv->pkey == pkey &&
priv->child_type == IPOIB_LEGACY_CHILD) {
@@ -278,9 +280,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
goto out;
}
- down_write(&ppriv->vlan_rwsem);
list_del_init(&priv->list);
- up_write(&ppriv->vlan_rwsem);
work->dev = priv->dev;
INIT_WORK(&work->work, ipoib_vlan_delete_task);
queue_work(ipoib_workqueue, &work->work);
@@ -291,6 +291,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
}
out:
+ netdev_unlock(ppriv->dev);
rtnl_unlock();
return rc;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
index 81523825faa2..cb972b2d46e2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -114,6 +114,7 @@ int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
int err = 0;
rtnl_lock();
+ netdev_lock(priv->netdev);
mutex_lock(&priv->state_lock);
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
@@ -123,6 +124,7 @@ int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
out:
mutex_unlock(&priv->state_lock);
+ netdev_unlock(priv->netdev);
rtnl_unlock();
return err;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
index 131ed97ca997..5d0014129a7e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
@@ -8,6 +8,7 @@
#include "en/fs_tt_redirect.h"
#include <linux/list.h>
#include <linux/spinlock.h>
+#include <net/netdev_lock.h>
struct mlx5e_ptp_fs {
struct mlx5_flow_handle *l2_rule;
@@ -449,8 +450,22 @@ static void mlx5e_ptpsq_unhealthy_work(struct work_struct *work)
{
struct mlx5e_ptpsq *ptpsq =
container_of(work, struct mlx5e_ptpsq, report_unhealthy_work);
+ struct mlx5e_txqsq *sq = &ptpsq->txqsq;
+
+ /* Recovering the PTP SQ means re-enabling NAPI, which requires the
+ * netdev instance lock. However, SQ closing has to wait for this work
+ * task to finish while also holding the same lock. So either get the
+ * lock or find that the SQ is no longer enabled and thus this work is
+ * not relevant anymore.
+ */
+ while (!netdev_trylock(sq->netdev)) {
+ if (!test_bit(MLX5E_SQ_STATE_ENABLED, &sq->state))
+ return;
+ msleep(20);
+ }
mlx5e_reporter_tx_ptpsq_unhealthy(ptpsq);
+ netdev_unlock(sq->netdev);
}
static int mlx5e_ptp_open_txqsq(struct mlx5e_ptp *c, u32 tisn,
@@ -892,7 +907,7 @@ int mlx5e_ptp_open(struct mlx5e_priv *priv, struct mlx5e_params *params,
if (err)
goto err_free;
- netif_napi_add(netdev, &c->napi, mlx5e_ptp_napi_poll);
+ netif_napi_add_locked(netdev, &c->napi, mlx5e_ptp_napi_poll);
mlx5e_ptp_build_params(c, cparams, params);
@@ -910,7 +925,7 @@ int mlx5e_ptp_open(struct mlx5e_priv *priv, struct mlx5e_params *params,
return 0;
err_napi_del:
- netif_napi_del(&c->napi);
+ netif_napi_del_locked(&c->napi);
err_free:
kvfree(cparams);
kvfree(c);
@@ -920,7 +935,7 @@ err_free:
void mlx5e_ptp_close(struct mlx5e_ptp *c)
{
mlx5e_ptp_close_queues(c);
- netif_napi_del(&c->napi);
+ netif_napi_del_locked(&c->napi);
kvfree(c);
}
@@ -929,7 +944,7 @@ void mlx5e_ptp_activate_channel(struct mlx5e_ptp *c)
{
int tc;
- napi_enable(&c->napi);
+ napi_enable_locked(&c->napi);
if (test_bit(MLX5E_PTP_STATE_TX, c->state)) {
for (tc = 0; tc < c->num_tc; tc++)
@@ -957,7 +972,7 @@ void mlx5e_ptp_deactivate_channel(struct mlx5e_ptp *c)
mlx5e_deactivate_txqsq(&c->ptpsq[tc].txqsq);
}
- napi_disable(&c->napi);
+ napi_disable_locked(&c->napi);
}
int mlx5e_ptp_get_rqn(struct mlx5e_ptp *c, u32 *rqn)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index dbd9482359e1..c3bda4612fa9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -107,9 +107,7 @@ static int mlx5e_tx_reporter_err_cqe_recover(void *ctx)
mlx5e_reset_txqsq_cc_pc(sq);
sq->stats->recover++;
clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
- rtnl_lock();
mlx5e_activate_txqsq(sq);
- rtnl_unlock();
if (sq->channel)
mlx5e_trigger_napi_icosq(sq->channel);
@@ -176,7 +174,6 @@ static int mlx5e_tx_reporter_ptpsq_unhealthy_recover(void *ctx)
priv = ptpsq->txqsq.priv;
- rtnl_lock();
mutex_lock(&priv->state_lock);
chs = &priv->channels;
netdev = priv->netdev;
@@ -196,7 +193,6 @@ static int mlx5e_tx_reporter_ptpsq_unhealthy_recover(void *ctx)
netif_carrier_on(netdev);
mutex_unlock(&priv->state_lock);
- rtnl_unlock();
return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/trap.c b/drivers/net/ethernet/mellanox/mlx5/core/en/trap.c
index 140606fcd23b..b5c19396e096 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/trap.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/trap.c
@@ -149,7 +149,7 @@ static struct mlx5e_trap *mlx5e_open_trap(struct mlx5e_priv *priv)
t->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.hw_objs.mkey);
t->stats = &priv->trap_stats.ch;
- netif_napi_add(netdev, &t->napi, mlx5e_trap_napi_poll);
+ netif_napi_add_locked(netdev, &t->napi, mlx5e_trap_napi_poll);
err = mlx5e_open_trap_rq(priv, t);
if (unlikely(err))
@@ -164,7 +164,7 @@ static struct mlx5e_trap *mlx5e_open_trap(struct mlx5e_priv *priv)
err_close_trap_rq:
mlx5e_close_trap_rq(&t->rq);
err_napi_del:
- netif_napi_del(&t->napi);
+ netif_napi_del_locked(&t->napi);
kvfree(t);
return ERR_PTR(err);
}
@@ -173,13 +173,13 @@ void mlx5e_close_trap(struct mlx5e_trap *trap)
{
mlx5e_tir_destroy(&trap->tir);
mlx5e_close_trap_rq(&trap->rq);
- netif_napi_del(&trap->napi);
+ netif_napi_del_locked(&trap->napi);
kvfree(trap);
}
static void mlx5e_activate_trap(struct mlx5e_trap *trap)
{
- napi_enable(&trap->napi);
+ napi_enable_locked(&trap->napi);
mlx5e_activate_rq(&trap->rq);
mlx5e_trigger_napi_sched(&trap->napi);
}
@@ -189,7 +189,7 @@ void mlx5e_deactivate_trap(struct mlx5e_priv *priv)
struct mlx5e_trap *trap = priv->en_trap;
mlx5e_deactivate_rq(&trap->rq);
- napi_disable(&trap->napi);
+ napi_disable_locked(&trap->napi);
}
static struct mlx5e_trap *mlx5e_add_trap_queue(struct mlx5e_priv *priv)
@@ -285,6 +285,7 @@ int mlx5e_handle_trap_event(struct mlx5e_priv *priv, struct mlx5_trap_ctx *trap_
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
return 0;
+ netdev_lock(priv->netdev);
switch (trap_ctx->action) {
case DEVLINK_TRAP_ACTION_TRAP:
err = mlx5e_handle_action_trap(priv, trap_ctx->id);
@@ -297,6 +298,7 @@ int mlx5e_handle_trap_event(struct mlx5e_priv *priv, struct mlx5_trap_ctx *trap_
trap_ctx->action);
err = -EINVAL;
}
+ netdev_unlock(priv->netdev);
return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
index 8705cffc747f..5fe016e477b3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -1147,6 +1147,7 @@ static int mlx5e_set_trust_state(struct mlx5e_priv *priv, u8 trust_state)
bool reset = true;
int err;
+ netdev_lock(priv->netdev);
mutex_lock(&priv->state_lock);
new_params = priv->channels.params;
@@ -1162,6 +1163,7 @@ static int mlx5e_set_trust_state(struct mlx5e_priv *priv, u8 trust_state)
&trust_state, reset);
mutex_unlock(&priv->state_lock);
+ netdev_unlock(priv->netdev);
return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index e399d7a3d6cb..ea078c9f5d15 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -2060,14 +2060,9 @@ int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
if (err)
return err;
- dev_hold(dev);
- rtnl_unlock();
-
err = mlx5_firmware_flash(mdev, fw, NULL);
release_firmware(fw);
- rtnl_lock();
- dev_put(dev);
return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
index 05058710d2c7..04a969128161 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
@@ -484,7 +484,9 @@ static int mlx5e_vlan_rx_add_svid(struct mlx5e_flow_steering *fs,
}
/* Need to fix some features.. */
+ netdev_lock(netdev);
netdev_update_features(netdev);
+ netdev_unlock(netdev);
return err;
}
@@ -521,7 +523,9 @@ int mlx5e_fs_vlan_rx_kill_vid(struct mlx5e_flow_steering *fs,
} else if (be16_to_cpu(proto) == ETH_P_8021AD) {
clear_bit(vid, fs->vlan->active_svlans);
mlx5e_fs_del_vlan_rule(fs, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
+ netdev_lock(netdev);
netdev_update_features(netdev);
+ netdev_unlock(netdev);
}
return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 9bd166f489e7..ea822c69d137 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -39,6 +39,7 @@
#include <linux/debugfs.h>
#include <linux/if_bridge.h>
#include <linux/filter.h>
+#include <net/netdev_lock.h>
#include <net/netdev_queues.h>
#include <net/page_pool/types.h>
#include <net/pkt_sched.h>
@@ -1903,7 +1904,20 @@ void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
struct mlx5e_txqsq *sq = container_of(recover_work, struct mlx5e_txqsq,
recover_work);
+ /* Recovering queues means re-enabling NAPI, which requires the netdev
+ * instance lock. However, SQ closing flows have to wait for work tasks
+ * to finish while also holding the netdev instance lock. So either get
+ * the lock or find that the SQ is no longer enabled and thus this work
+ * is not relevant anymore.
+ */
+ while (!netdev_trylock(sq->netdev)) {
+ if (!test_bit(MLX5E_SQ_STATE_ENABLED, &sq->state))
+ return;
+ msleep(20);
+ }
+
mlx5e_reporter_tx_err_cqe(sq);
+ netdev_unlock(sq->netdev);
}
static struct dim_cq_moder mlx5e_get_def_tx_moderation(u8 cq_period_mode)
@@ -2705,8 +2719,8 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
c->aff_mask = irq_get_effective_affinity_mask(irq);
c->lag_port = mlx5e_enumerate_lag_port(mdev, ix);
- netif_napi_add_config(netdev, &c->napi, mlx5e_napi_poll, ix);
- netif_napi_set_irq(&c->napi, irq);
+ netif_napi_add_config_locked(netdev, &c->napi, mlx5e_napi_poll, ix);
+ netif_napi_set_irq_locked(&c->napi, irq);
err = mlx5e_open_queues(c, params, cparam);
if (unlikely(err))
@@ -2728,7 +2742,7 @@ err_close_queues:
mlx5e_close_queues(c);
err_napi_del:
- netif_napi_del(&c->napi);
+ netif_napi_del_locked(&c->napi);
err_free:
kvfree(cparam);
@@ -2741,7 +2755,7 @@ static void mlx5e_activate_channel(struct mlx5e_channel *c)
{
int tc;
- napi_enable(&c->napi);
+ napi_enable_locked(&c->napi);
for (tc = 0; tc < c->num_tc; tc++)
mlx5e_activate_txqsq(&c->sq[tc]);
@@ -2773,7 +2787,7 @@ static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
mlx5e_deactivate_txqsq(&c->sq[tc]);
mlx5e_qos_deactivate_queues(c);
- napi_disable(&c->napi);
+ napi_disable_locked(&c->napi);
}
static void mlx5e_close_channel(struct mlx5e_channel *c)
@@ -2782,7 +2796,7 @@ static void mlx5e_close_channel(struct mlx5e_channel *c)
mlx5e_close_xsk(c);
mlx5e_close_queues(c);
mlx5e_qos_close_queues(c);
- netif_napi_del(&c->napi);
+ netif_napi_del_locked(&c->napi);
kvfree(c);
}
@@ -4276,7 +4290,7 @@ void mlx5e_set_xdp_feature(struct net_device *netdev)
if (!netdev->netdev_ops->ndo_bpf ||
params->packet_merge.type != MLX5E_PACKET_MERGE_NONE) {
- xdp_clear_features_flag(netdev);
+ xdp_set_features_flag_locked(netdev, 0);
return;
}
@@ -4285,7 +4299,7 @@ void mlx5e_set_xdp_feature(struct net_device *netdev)
NETDEV_XDP_ACT_RX_SG |
NETDEV_XDP_ACT_NDO_XMIT |
NETDEV_XDP_ACT_NDO_XMIT_SG;
- xdp_set_features_flag(netdev, val);
+ xdp_set_features_flag_locked(netdev, val);
}
int mlx5e_set_features(struct net_device *netdev, netdev_features_t features)
@@ -4968,21 +4982,19 @@ static void mlx5e_tx_timeout_work(struct work_struct *work)
struct net_device *netdev = priv->netdev;
int i;
- /* Take rtnl_lock to ensure no change in netdev->real_num_tx_queues
- * through this flow. However, channel closing flows have to wait for
- * this work to finish while holding rtnl lock too. So either get the
- * lock or find that channels are being closed for other reason and
- * this work is not relevant anymore.
+ /* Recovering the TX queues implies re-enabling NAPI, which requires
+ * the netdev instance lock.
+ * However, channel closing flows have to wait for this work to finish
+ * while holding the same lock. So either get the lock or find that
+ * channels are being closed for other reason and this work is not
+ * relevant anymore.
*/
- while (!rtnl_trylock()) {
+ while (!netdev_trylock(netdev)) {
if (!test_bit(MLX5E_STATE_CHANNELS_ACTIVE, &priv->state))
return;
msleep(20);
}
- if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
- goto unlock;
-
for (i = 0; i < netdev->real_num_tx_queues; i++) {
struct netdev_queue *dev_queue =
netdev_get_tx_queue(netdev, i);
@@ -4996,8 +5008,7 @@ static void mlx5e_tx_timeout_work(struct work_struct *work)
break;
}
-unlock:
- rtnl_unlock();
+ netdev_unlock(netdev);
}
static void mlx5e_tx_timeout(struct net_device *dev, unsigned int txqueue)
@@ -5321,7 +5332,6 @@ static void mlx5e_get_queue_stats_rx(struct net_device *dev, int i,
struct mlx5e_rq_stats *xskrq_stats;
struct mlx5e_rq_stats *rq_stats;
- ASSERT_RTNL();
if (mlx5e_is_uplink_rep(priv) || !priv->stats_nch)
return;
@@ -5341,7 +5351,6 @@ static void mlx5e_get_queue_stats_tx(struct net_device *dev, int i,
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_sq_stats *sq_stats;
- ASSERT_RTNL();
if (!priv->stats_nch)
return;
@@ -5362,7 +5371,6 @@ static void mlx5e_get_base_stats(struct net_device *dev,
struct mlx5e_ptp *ptp_channel;
int i, tc;
- ASSERT_RTNL();
if (!mlx5e_is_uplink_rep(priv)) {
rx->packets = 0;
rx->bytes = 0;
@@ -5458,6 +5466,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
netdev->netdev_ops = &mlx5e_netdev_ops;
netdev->xdp_metadata_ops = &mlx5e_xdp_metadata_ops;
netdev->xsk_tx_metadata_ops = &mlx5e_xsk_tx_metadata_ops;
+ netdev->request_ops_lock = true;
+ netdev_lockdep_set_classes(netdev);
mlx5e_dcbnl_build_netdev(netdev);
@@ -5839,9 +5849,11 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
mlx5e_nic_set_rx_mode(priv);
rtnl_lock();
+ netdev_lock(netdev);
if (netif_running(netdev))
mlx5e_open(netdev);
udp_tunnel_nic_reset_ntf(priv->netdev);
+ netdev_unlock(netdev);
netif_device_attach(netdev);
rtnl_unlock();
}
@@ -5854,9 +5866,16 @@ static void mlx5e_nic_disable(struct mlx5e_priv *priv)
mlx5e_dcbnl_delete_app(priv);
rtnl_lock();
+ netdev_lock(priv->netdev);
if (netif_running(priv->netdev))
mlx5e_close(priv->netdev);
netif_device_detach(priv->netdev);
+ if (priv->en_trap) {
+ mlx5e_deactivate_trap(priv);
+ mlx5e_close_trap(priv->en_trap);
+ priv->en_trap = NULL;
+ }
+ netdev_unlock(priv->netdev);
rtnl_unlock();
mlx5e_nic_set_rx_mode(priv);
@@ -5866,11 +5885,6 @@ static void mlx5e_nic_disable(struct mlx5e_priv *priv)
mlx5e_monitor_counter_cleanup(priv);
mlx5e_disable_blocking_events(priv);
- if (priv->en_trap) {
- mlx5e_deactivate_trap(priv);
- mlx5e_close_trap(priv->en_trap);
- priv->en_trap = NULL;
- }
mlx5e_disable_async_events(priv);
mlx5_lag_remove_netdev(mdev, priv->netdev);
mlx5_vxlan_reset_to_default(mdev->vxlan);
@@ -6125,7 +6139,9 @@ static void mlx5e_update_features(struct net_device *netdev)
return; /* features will be updated on netdev registration */
rtnl_lock();
+ netdev_lock(netdev);
netdev_update_features(netdev);
+ netdev_unlock(netdev);
rtnl_unlock();
}
@@ -6136,7 +6152,7 @@ static void mlx5e_reset_channels(struct net_device *netdev)
int mlx5e_attach_netdev(struct mlx5e_priv *priv)
{
- const bool take_rtnl = priv->netdev->reg_state == NETREG_REGISTERED;
+ const bool need_lock = priv->netdev->reg_state == NETREG_REGISTERED;
const struct mlx5e_profile *profile = priv->profile;
int max_nch;
int err;
@@ -6178,15 +6194,19 @@ int mlx5e_attach_netdev(struct mlx5e_priv *priv)
* 2. Set our default XPS cpumask.
* 3. Build the RQT.
*
- * rtnl_lock is required by netif_set_real_num_*_queues in case the
+ * Locking is required by netif_set_real_num_*_queues in case the
* netdev has been registered by this point (if this function was called
* in the reload or resume flow).
*/
- if (take_rtnl)
+ if (need_lock) {
rtnl_lock();
+ netdev_lock(priv->netdev);
+ }
err = mlx5e_num_channels_changed(priv);
- if (take_rtnl)
+ if (need_lock) {
+ netdev_unlock(priv->netdev);
rtnl_unlock();
+ }
if (err)
goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 2abab241f03b..719aa16bd404 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -33,6 +33,7 @@
#include <linux/dim.h>
#include <linux/debugfs.h>
#include <linux/mlx5/fs.h>
+#include <net/netdev_lock.h>
#include <net/switchdev.h>
#include <net/pkt_cls.h>
#include <net/act_api.h>
@@ -885,6 +886,8 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev,
{
SET_NETDEV_DEV(netdev, mdev->device);
netdev->netdev_ops = &mlx5e_netdev_ops_rep;
+ netdev->request_ops_lock = true;
+ netdev_lockdep_set_classes(netdev);
eth_hw_addr_random(netdev);
netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
@@ -1344,9 +1347,11 @@ static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
netdev->wanted_features |= NETIF_F_HW_TC;
rtnl_lock();
+ netdev_lock(netdev);
if (netif_running(netdev))
mlx5e_open(netdev);
udp_tunnel_nic_reset_ntf(priv->netdev);
+ netdev_unlock(netdev);
netif_device_attach(netdev);
rtnl_unlock();
}
@@ -1356,9 +1361,11 @@ static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
struct mlx5_core_dev *mdev = priv->mdev;
rtnl_lock();
+ netdev_lock(priv->netdev);
if (netif_running(priv->netdev))
mlx5e_close(priv->netdev);
netif_device_detach(priv->netdev);
+ netdev_unlock(priv->netdev);
rtnl_unlock();
mlx5e_rep_bridge_cleanup(priv);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 0979d672d47f..79ae3a51a4b3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -32,6 +32,7 @@
#include <rdma/ib_verbs.h>
#include <linux/mlx5/fs.h>
+#include <net/netdev_lock.h>
#include "en.h"
#include "en/params.h"
#include "ipoib.h"
@@ -102,6 +103,8 @@ int mlx5i_init(struct mlx5_core_dev *mdev, struct net_device *netdev)
netdev->netdev_ops = &mlx5i_netdev_ops;
netdev->ethtool_ops = &mlx5i_ethtool_ops;
+ netdev->request_ops_lock = true;
+ netdev_lockdep_set_classes(netdev);
return 0;
}