diff options
| author | Nick Nunley <nicholas.d.nunley@intel.com> | 2020-07-13 13:53:07 -0700 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2020-07-29 08:38:55 -0700 |
| commit | a54a0b24f4f5a361abaf1c0e6591c57816d4cfa7 (patch) | |
| tree | 111d1ed6d2bbc8d8f5f6472ddbf749e5b431e3b7 /drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h | |
| parent | 0ce6c34a8f6f5b63c9ed5f2ee9be52ece1428350 (diff) | |
ice: restore VF MSI-X state during PCI reset
During a PCI FLR the MSI-X Enable flag in the VF PCI MSI-X capability
register will be cleared. This can lead to issues when a VF is
assigned to a VM because in these cases the VF driver receives no
indication of the PF PCI error/reset and additionally it is incapable
of restoring the cleared flag in the hypervisor configuration space
without fully reinitializing the driver interrupt functionality.
Since the VF driver is unable to easily resolve this condition on its own,
restore the VF MSI-X flag during the PF PCI reset handling.
Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index 67aa9110fdd1..049e0b583383 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -114,6 +114,7 @@ void ice_vc_notify_link_state(struct ice_pf *pf); void ice_vc_notify_reset(struct ice_pf *pf); bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr); bool ice_reset_vf(struct ice_vf *vf, bool is_vflr); +void ice_restore_all_vfs_msi_state(struct pci_dev *pdev); int ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, @@ -146,6 +147,7 @@ void ice_print_vf_rx_mdd_event(struct ice_vf *vf); #define ice_vf_lan_overflow_event(pf, event) do {} while (0) #define ice_print_vfs_mdd_events(pf) do {} while (0) #define ice_print_vf_rx_mdd_event(vf) do {} while (0) +#define ice_restore_all_vfs_msi_state(pdev) do {} while (0) static inline bool ice_reset_all_vfs(struct ice_pf __always_unused *pf, |