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authorMarcin Szycik <marcin.szycik@linux.intel.com>2021-10-26 17:46:28 +0200
committerTony Nguyen <anthony.l.nguyen@intel.com>2021-10-29 10:56:24 -0700
commitc79bb28e19cca322b70a912ec17dd6482d24c7e9 (patch)
tree4cbb293092c9cb560b59aaa33cbdc255afb2ae28 /drivers/net
parent29e71f41e7d2f7069c12c686ca4d222e8be2a2ee (diff)
downloadlinux-c79bb28e19cca322b70a912ec17dd6482d24c7e9.tar.bz2
ice: Clear synchronized addrs when adding VFs in switchdev mode
When spawning VFs in switchdev mode, internal filter list of VSIs is cleared, which includes MAC rules. However MAC entries stay on netdev's multicast list, which causes error message when bringing link up after spawning VFs ("Failed to delete MAC filters"). __dev_mc_sync() is called and tries to unsync addresses that were already removed internally when adding VFs. This can be reproduced with: 1) Load ice driver 2) Change PF to switchdev mode 3) Bring PF link up 4) Bring PF link down 5) Create a VF on PF 6) Bring PF link up Added clearing of netdev's multicast (and also unicast) list when spawning VFs in switchdev mode, so the state of internal rule list and netdev's MAC list is consistent. Fixes: 1a1c40df2e80 ("ice: set and release switchdev environment") Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_eswitch.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.c b/drivers/net/ethernet/intel/ice/ice_eswitch.c
index 6cb50653b18d..d1d7389b0bff 100644
--- a/drivers/net/ethernet/intel/ice/ice_eswitch.c
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch.c
@@ -19,6 +19,7 @@
static int ice_eswitch_setup_env(struct ice_pf *pf)
{
struct ice_vsi *uplink_vsi = pf->switchdev.uplink_vsi;
+ struct net_device *uplink_netdev = uplink_vsi->netdev;
struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
struct ice_port_info *pi = pf->hw.port_info;
bool rule_added = false;
@@ -27,6 +28,11 @@ static int ice_eswitch_setup_env(struct ice_pf *pf)
ice_remove_vsi_fltr(&pf->hw, uplink_vsi->idx);
+ netif_addr_lock_bh(uplink_netdev);
+ __dev_uc_unsync(uplink_netdev, NULL);
+ __dev_mc_unsync(uplink_netdev, NULL);
+ netif_addr_unlock_bh(uplink_netdev);
+
if (ice_vsi_add_vlan(uplink_vsi, 0, ICE_FWD_TO_VSI))
goto err_def_rx;