bnxt_en: Replace deprecated PCI MSIX APIs

Use the new pci_alloc_irq_vectors() and pci_free_irq_vectors() to
replace the deprecated pci_enable_msix_range() and pci_disable_msix().
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20240828183235.128948-8-michael.chan@broadcom.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -10723,7 +10723,6 @@ static int bnxt_get_num_msix(struct bnxt *bp)
 static int bnxt_init_int_mode(struct bnxt *bp)
 {
 	int i, total_vecs, max, rc = 0, min = 1, ulp_msix, tx_cp;
-	struct msix_entry *msix_ent;
 
 	total_vecs = bnxt_get_num_msix(bp);
 	max = bnxt_get_max_func_irqs(bp);
@@ -10733,19 +10732,11 @@ static int bnxt_init_int_mode(struct bnxt *bp)
 	if (!total_vecs)
 		return 0;
 
-	msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL);
-	if (!msix_ent)
-		return -ENOMEM;
-
-	for (i = 0; i < total_vecs; i++) {
-		msix_ent[i].entry = i;
-		msix_ent[i].vector = 0;
-	}
-
 	if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
 		min = 2;
 
-	total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs);
+	total_vecs = pci_alloc_irq_vectors(bp->pdev, min, total_vecs,
+					   PCI_IRQ_MSIX);
 	ulp_msix = bnxt_get_ulp_msix_num(bp);
 	if (total_vecs < 0 || total_vecs < ulp_msix) {
 		rc = -ENODEV;
@@ -10755,7 +10746,7 @@ static int bnxt_init_int_mode(struct bnxt *bp)
 	bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL);
 	if (bp->irq_tbl) {
 		for (i = 0; i < total_vecs; i++)
-			bp->irq_tbl[i].vector = msix_ent[i].vector;
+			bp->irq_tbl[i].vector = pci_irq_vector(bp->pdev, i);
 
 		bp->total_irqs = total_vecs;
 		/* Trim rings based upon num of vectors allocated */
@@ -10773,21 +10764,19 @@ static int bnxt_init_int_mode(struct bnxt *bp)
 		rc = -ENOMEM;
 		goto msix_setup_exit;
 	}
-	kfree(msix_ent);
 	return 0;
 
 msix_setup_exit:
 	netdev_err(bp->dev, "bnxt_init_int_mode err: %x\n", rc);
 	kfree(bp->irq_tbl);
 	bp->irq_tbl = NULL;
-	pci_disable_msix(bp->pdev);
-	kfree(msix_ent);
+	pci_free_irq_vectors(bp->pdev);
 	return rc;
 }
 
 static void bnxt_clear_int_mode(struct bnxt *bp)
 {
-	pci_disable_msix(bp->pdev);
+	pci_free_irq_vectors(bp->pdev);
 
 	kfree(bp->irq_tbl);
 	bp->irq_tbl = NULL;