i40e: only enable PTP interrupt cause if PTP is enabled

We should not blindly enable the PTP interrupt flags for all PFs. We
should only enable the PTP interrupt in PFs which have enabled
PTP.

Change-ID: I051a17cae4c199a2f3cf7852266e27eda6630525
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index c3a353d..0cc0266 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2819,8 +2819,9 @@
  * i40e_enable_misc_int_causes - enable the non-queue interrupts
  * @hw: ptr to the hardware info
  **/
-static void i40e_enable_misc_int_causes(struct i40e_hw *hw)
+static void i40e_enable_misc_int_causes(struct i40e_pf *pf)
 {
+	struct i40e_hw *hw = &pf->hw;
 	u32 val;
 
 	/* clear things first */
@@ -2832,11 +2833,13 @@
 	      I40E_PFINT_ICR0_ENA_GRST_MASK          |
 	      I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK |
 	      I40E_PFINT_ICR0_ENA_GPIO_MASK          |
-	      I40E_PFINT_ICR0_ENA_TIMESYNC_MASK      |
 	      I40E_PFINT_ICR0_ENA_HMC_ERR_MASK       |
 	      I40E_PFINT_ICR0_ENA_VFLR_MASK          |
 	      I40E_PFINT_ICR0_ENA_ADMINQ_MASK;
 
+	if (pf->flags & I40E_FLAG_PTP)
+		val |= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK;
+
 	wr32(hw, I40E_PFINT_ICR0_ENA, val);
 
 	/* SW_ITR_IDX = 0, but don't change INTENA */
@@ -2866,7 +2869,7 @@
 	q_vector->tx.latency_range = I40E_LOW_LATENCY;
 	wr32(hw, I40E_PFINT_ITR0(I40E_TX_ITR), q_vector->tx.itr);
 
-	i40e_enable_misc_int_causes(hw);
+	i40e_enable_misc_int_causes(pf);
 
 	/* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
 	wr32(hw, I40E_PFINT_LNKLST0, 0);
@@ -7137,7 +7140,7 @@
 		}
 	}
 
-	i40e_enable_misc_int_causes(hw);
+	i40e_enable_misc_int_causes(pf);
 
 	/* associate no queues to the misc vector */
 	wr32(hw, I40E_PFINT_LNKLST0, I40E_QUEUE_END_OF_LIST);