ice: use pci_irq_vector helper function

Currently, driver gets interrupt number directly from ice_pf::msix_entries
array. Use helper function dedicated to do just that.

While at it use a variable to store interrupt number in
ice_free_irq_msix_misc instead of calling the helper function twice.
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ice/ice_arfs.c

@@ -616,7 +616,7 @@ int ice_set_cpu_rx_rmap(struct ice_vsi *vsi)
 	base_idx = vsi->base_vector;
 	ice_for_each_q_vector(vsi, i)
 		if (irq_cpu_rmap_add(netdev->rx_cpu_rmap,
-				     pf->msix_entries[base_idx + i].vector)) {
+				     pci_irq_vector(pf->pdev, base_idx + i))) {
 			ice_free_cpu_rx_rmap(vsi);
 			return -EINVAL;
 		}

drivers/net/ethernet/intel/ice/ice_lib.c

@@ -3056,7 +3056,7 @@ void ice_vsi_free_irq(struct ice_vsi *vsi)
 		u16 vector = i + base;
 		int irq_num;
 
-		irq_num = pf->msix_entries[vector].vector;
+		irq_num = pci_irq_vector(pf->pdev, vector);
 
 		/* free only the irqs that were actually requested */
 		if (!vsi->q_vectors[i] ||
@@ -3235,7 +3235,7 @@ void ice_vsi_dis_irq(struct ice_vsi *vsi)
 		return;
 
 	ice_for_each_q_vector(vsi, i)
-		synchronize_irq(pf->msix_entries[i + base].vector);
+		synchronize_irq(pci_irq_vector(pf->pdev, i + base));
 }
 
 /**

drivers/net/ethernet/intel/ice/ice_main.c

@@ -2501,7 +2501,7 @@ static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)
 	for (vector = 0; vector < q_vectors; vector++) {
 		struct ice_q_vector *q_vector = vsi->q_vectors[vector];
 
-		irq_num = pf->msix_entries[base + vector].vector;
+		irq_num = pci_irq_vector(pf->pdev, base + vector);
 
 		if (q_vector->tx.tx_ring && q_vector->rx.rx_ring) {
 			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
@@ -2557,7 +2557,7 @@ static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)
 free_q_irqs:
 	while (vector) {
 		vector--;
-		irq_num = pf->msix_entries[base + vector].vector;
+		irq_num = pci_irq_vector(pf->pdev, base + vector);
 		if (!IS_ENABLED(CONFIG_RFS_ACCEL))
 			irq_set_affinity_notifier(irq_num, NULL);
 		irq_set_affinity_hint(irq_num, NULL);
@@ -3234,6 +3234,7 @@ static void ice_dis_ctrlq_interrupts(struct ice_hw *hw)
  */
 static void ice_free_irq_msix_misc(struct ice_pf *pf)
 {
+	int misc_irq_num = pci_irq_vector(pf->pdev, pf->oicr_idx);
 	struct ice_hw *hw = &pf->hw;
 
 	ice_dis_ctrlq_interrupts(hw);
@@ -3243,9 +3244,8 @@ static void ice_free_irq_msix_misc(struct ice_pf *pf)
 	ice_flush(hw);
 
 	if (pf->msix_entries) {
-		synchronize_irq(pf->msix_entries[pf->oicr_idx].vector);
-		devm_free_irq(ice_pf_to_dev(pf),
-			      pf->msix_entries[pf->oicr_idx].vector, pf);
+		synchronize_irq(misc_irq_num);
+		devm_free_irq(ice_pf_to_dev(pf), misc_irq_num, pf);
 	}
 
 	pf->num_avail_sw_msix += 1;
@@ -3317,7 +3317,7 @@ static int ice_req_irq_msix_misc(struct ice_pf *pf)
 	pf->oicr_idx = (u16)oicr_idx;
 
 	err = devm_request_threaded_irq(dev,
-					pf->msix_entries[pf->oicr_idx].vector,
+					pci_irq_vector(pf->pdev, pf->oicr_idx),
 					ice_misc_intr, ice_misc_intr_thread_fn,
 					0, pf->int_name, pf);
 	if (err) {

drivers/net/ethernet/intel/ice/ice_ptp.c

@@ -911,7 +911,7 @@ ice_ptp_release_tx_tracker(struct ice_pf *pf, struct ice_ptp_tx *tx)
 	spin_unlock(&tx->lock);
 
 	/* wait for potentially outstanding interrupt to complete */
-	synchronize_irq(pf->msix_entries[pf->oicr_idx].vector);
+	synchronize_irq(pci_irq_vector(pf->pdev, pf->oicr_idx));
 
 	ice_ptp_flush_tx_tracker(pf, tx);
 

drivers/net/ethernet/intel/ice/ice_xsk.c

@@ -107,7 +107,7 @@ ice_qvec_dis_irq(struct ice_vsi *vsi, struct ice_rx_ring *rx_ring,
 
 		wr32(hw, GLINT_DYN_CTL(q_vector->reg_idx), 0);
 		ice_flush(hw);
-		synchronize_irq(pf->msix_entries[v_idx + base].vector);
+		synchronize_irq(pci_irq_vector(pf->pdev, v_idx + base));
 	}
 }