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authorHenry Tieman <henry.w.tieman@intel.com>2019-11-06 02:05:30 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-11-08 12:02:43 -0800
commit5f8cc355c4134767aa586920458cc21e01295715 (patch)
tree8c2a8734e1ce632ae29097de7a8ad63436c83837
parentb94b013eb6269526eeb3768101666ba6f526313e (diff)
ice: avoid setting features during reset
Certain subsystems behave very badly when called during reset (core dump). This patch returns -EBUSY when reconfiguring some subsystems during reset. With this patch some ethtool functions will not core dump during reset. Signed-off-by: Henry Tieman <henry.w.tieman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r--drivers/net/ethernet/intel/ice/ice_main.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index d963aec59845..cb93fe5529f6 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3776,6 +3776,7 @@ ice_set_features(struct net_device *netdev, netdev_features_t features)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
+ struct ice_pf *pf = vsi->back;
int ret = 0;
/* Don't set any netdev advanced features with device in Safe Mode */
@@ -3785,6 +3786,13 @@ ice_set_features(struct net_device *netdev, netdev_features_t features)
return ret;
}
+ /* Do not change setting during reset */
+ if (ice_is_reset_in_progress(pf->state)) {
+ dev_err(&vsi->back->pdev->dev,
+ "Device is resetting, changing advanced netdev features temporarily unavailable.\n");
+ return -EBUSY;
+ }
+
/* Multiple features can be changed in one call so keep features in
* separate if/else statements to guarantee each feature is checked
*/