i40e: release NVM resource reservation on startup

Call AQ to release any reservation held by this PF on the NVM resource
lock on startup, in order to clear anything that might have been left over from
a previous run.  The lock is only cleared by the requestor calling for it to be
cleared, on power-on, or firmware reset.  This should help limit the need for
rebooting a customer machine if something goes wrong on a firmware update or
some other action.

Change-ID: I8c8473e601d4ef512dda7baa77a6e75f2e5fea49
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index eb014bb..2b76aba 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -583,6 +583,9 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw)
                goto init_adminq_free_arq;
        }
 
+       /* pre-emptive resource lock release */
+       i40e_aq_release_resource(hw, I40E_NVM_RESOURCE_ID, 0, NULL);
+
        ret_code = i40e_aq_set_hmc_resource_profile(hw,
                                                    I40E_HMC_PROFILE_DEFAULT,
                                                    0,