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[net-next,08/15] i40e: release NVM resource reservation on startup

Message ID 1389271944-26227-9-git-send-email-jeffrey.t.kirsher@intel.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Kirsher, Jeffrey T Jan. 9, 2014, 12:52 p.m. UTC 
From: Shannon Nelson <shannon.nelson@intel.com>

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>
---
 drivers/net/ethernet/intel/i40e/i40e_adminq.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index eb014bb..2b76aba 100644
--- 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,