cxgb4: 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: Dimitris Michailidis <dm@chelsio.com>
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 43ab35f..bd0321d 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -5737,7 +5737,7 @@ static void reduce_ethqs(struct adapter *adap, int n)
 static int enable_msix(struct adapter *adap)
 {
        int ofld_need = 0;
-       int i, err, want, need;
+       int i, want, need;
        struct sge *s = &adap->sge;
        unsigned int nchan = adap->params.nports;
        struct msix_entry entries[MAX_INGQ + 1];
@@ -5753,32 +5753,30 @@ static int enable_msix(struct adapter *adap)
        }
        need = adap->params.nports + EXTRA_VECS + ofld_need;
 
-       while ((err = pci_enable_msix(adap->pdev, entries, want)) >= need)
-               want = err;
+       want = pci_enable_msix_range(adap->pdev, entries, need, want);
+       if (want < 0)
+               return want;
 
-       if (!err) {
-               /*
-                * Distribute available vectors to the various queue groups.
-                * Every group gets its minimum requirement and NIC gets top
-                * priority for leftovers.
-                */
-               i = want - EXTRA_VECS - ofld_need;
-               if (i < s->max_ethqsets) {
-                       s->max_ethqsets = i;
-                       if (i < s->ethqsets)
-                               reduce_ethqs(adap, i);
-               }
-               if (is_offload(adap)) {
-                       i = want - EXTRA_VECS - s->max_ethqsets;
-                       i -= ofld_need - nchan;
-                       s->ofldqsets = (i / nchan) * nchan;  /* round down */
-               }
-               for (i = 0; i < want; ++i)
-                       adap->msix_info[i].vec = entries[i].vector;
-       } else if (err > 0)
-               dev_info(adap->pdev_dev,
-                        "only %d MSI-X vectors left, not using MSI-X\n", err);
-       return err;
+       /*
+        * Distribute available vectors to the various queue groups.
+        * Every group gets its minimum requirement and NIC gets top
+        * priority for leftovers.
+        */
+       i = want - EXTRA_VECS - ofld_need;
+       if (i < s->max_ethqsets) {
+               s->max_ethqsets = i;
+               if (i < s->ethqsets)
+                       reduce_ethqs(adap, i);
+       }
+       if (is_offload(adap)) {
+               i = want - EXTRA_VECS - s->max_ethqsets;
+               i -= ofld_need - nchan;
+               s->ofldqsets = (i / nchan) * nchan;  /* round down */
+       }
+       for (i = 0; i < want; ++i)
+               adap->msix_info[i].vec = entries[i].vector;
+
+       return 0;
 }
 
 #undef EXTRA_VECS