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authorJakub Kicinski <kuba@kernel.org>2022-02-10 11:45:35 -0800
committerJakub Kicinski <kuba@kernel.org>2022-02-10 11:45:36 -0800
commita19f7d7da9b3ffe8fcc43203a2d49c096d0754f6 (patch)
treeff400f6c0fa99bd44992b1574411e4a739ee76f4 /drivers/net/ethernet/intel/ice/ice_lag.c
parent7fbf6795d127a3b1bb39b0e42579904cf6db1624 (diff)
parent5dbbbd01cbba831233c6ea9a3e6bfa133606d3c0 (diff)
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2022-02-10 Dan Carpenter propagates an error in FEC configuration. Jesse fixes TSO offloads of IPIP and SIT frames. Dave adds a dedicated LAG unregister function to resolve a KASAN error and moves auxiliary device re-creation after LAG removal to the service task to avoid issues with RTNL lock. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: ice: Avoid RTNL lock when re-creating auxiliary device ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler ice: fix IPIP and SIT TSO offload ice: fix an error code in ice_cfg_phy_fec() ==================== Link: https://lore.kernel.org/r/20220210170515.2609656-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lag.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_lag.c34
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index e375ac849aec..4f954db01b92 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -204,11 +204,7 @@ ice_lag_unlink(struct ice_lag *lag,
lag->upper_netdev = NULL;
}
- if (lag->peer_netdev) {
- dev_put(lag->peer_netdev);
- lag->peer_netdev = NULL;
- }
-
+ lag->peer_netdev = NULL;
ice_set_sriov_cap(pf);
ice_set_rdma_cap(pf);
lag->bonded = false;
@@ -216,6 +212,32 @@ ice_lag_unlink(struct ice_lag *lag,
}
/**
+ * ice_lag_unregister - handle netdev unregister events
+ * @lag: LAG info struct
+ * @netdev: netdev reporting the event
+ */
+static void ice_lag_unregister(struct ice_lag *lag, struct net_device *netdev)
+{
+ struct ice_pf *pf = lag->pf;
+
+ /* check to see if this event is for this netdev
+ * check that we are in an aggregate
+ */
+ if (netdev != lag->netdev || !lag->bonded)
+ return;
+
+ if (lag->upper_netdev) {
+ dev_put(lag->upper_netdev);
+ lag->upper_netdev = NULL;
+ ice_set_sriov_cap(pf);
+ ice_set_rdma_cap(pf);
+ }
+ /* perform some cleanup in case we come back */
+ lag->bonded = false;
+ lag->role = ICE_LAG_NONE;
+}
+
+/**
* ice_lag_changeupper_event - handle LAG changeupper event
* @lag: LAG info struct
* @ptr: opaque pointer data
@@ -307,7 +329,7 @@ ice_lag_event_handler(struct notifier_block *notif_blk, unsigned long event,
ice_lag_info_event(lag, ptr);
break;
case NETDEV_UNREGISTER:
- ice_lag_unlink(lag, ptr);
+ ice_lag_unregister(lag, netdev);
break;
default:
break;