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authorKevin Scott <kevin.c.scott@intel.com>2014-04-09 09:58:54 +0400
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2014-05-29 13:02:25 +0400
commit8b833b4faa76df878cbf6059212093f2842c3962 (patch)
treed011f06663b04fef922f1aad19e59df9ba1856a8 /drivers/net/ethernet/intel/i40evf/i40e_common.c
parent6623b4194459c07859d3e3196c3994fa7be5b88e (diff)
downloadlinux-8b833b4faa76df878cbf6059212093f2842c3962.tar.xz
i40e/i40evf: Update check for AQ aliveness
Update the i40e_check_asq_alive check to ensure that the len register offset is non-zero, indicating that SW has initialized the AQ. Change-ID: I9c2e804788b4775bef9c7e80954ab004e6bdb306 Signed-off-by: Kevin Scott <kevin.c.scott@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40evf/i40e_common.c')
-rw-r--r--drivers/net/ethernet/intel/i40evf/i40e_common.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_common.c b/drivers/net/ethernet/intel/i40evf/i40e_common.c
index ac660963b8b7..ea0f2001cc20 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_common.c
@@ -133,7 +133,11 @@ void i40evf_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
**/
bool i40evf_check_asq_alive(struct i40e_hw *hw)
{
- return !!(rd32(hw, hw->aq.asq.len) & I40E_PF_ATQLEN_ATQENABLE_MASK);
+ if (hw->aq.asq.len)
+ return !!(rd32(hw, hw->aq.asq.len) &
+ I40E_PF_ATQLEN_ATQENABLE_MASK);
+ else
+ return false;
}
/**