i40e: Use pci_enable_msix_range() instead of pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() and pci_enable_msix_range()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 27 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 628e917f5338..3116861198f0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5856,37 +5856,16 @@ err_out:
  **/
 static int i40e_reserve_msix_vectors(struct i40e_pf *pf, int vectors)
 {
-        int err = 0;
-
-        pf->num_msix_entries = 0;
-        while (vectors >= I40E_MIN_MSIX) {
-                err = pci_enable_msix(pf->pdev, pf->msix_entries, vectors);
-                if (err == 0) {
-                        /* good to go */
-                        pf->num_msix_entries = vectors;
-                        break;
-                } else if (err < 0) {
-                        /* total failure */
-                        dev_info(&pf->pdev->dev,
-                                 "MSI-X vector reservation failed: %d\n", err);
-                        vectors = 0;
-                        break;
-                } else {
-                        /* err > 0 is the hint for retry */
-                        dev_info(&pf->pdev->dev,
-                                 "MSI-X vectors wanted %d, retrying with %d\n",
-                                 vectors, err);
-                        vectors = err;
-                }
-        }
-
-        if (vectors > 0 && vectors < I40E_MIN_MSIX) {
+        vectors = pci_enable_msix_range(pf->pdev, pf->msix_entries,
+                                        I40E_MIN_MSIX, vectors);
+        if (vectors < 0) {
                 dev_info(&pf->pdev->dev,
-                         "Couldn't get enough vectors, only %d available\n",
-                         vectors);
+                         "MSI-X vector reservation failed: %d\n", vectors);
                 vectors = 0;
         }
 
+        pf->num_msix_entries = vectors;
+
         return vectors;
 }