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ice: avoid setting features during reset

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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>
This commit is contained in:
Henry Tieman 2019-11-06 02:05:30 -08:00 committed by Jeff Kirsher
parent b94b013eb6
commit 5f8cc355c4
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/intel/ice/ice_main.c
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@ -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
*/