csiostor: 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()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

2 files changed, 10 insertions, 14 deletions

diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h
index 49b1daa4476e..5db2d85195b1 100644
--- a/drivers/scsi/csiostor/csio_hw.h
+++ b/drivers/scsi/csiostor/csio_hw.h
@@ -94,7 +94,7 @@ enum {
 };
 
 struct csio_msix_entries {
-        unsigned short  vector;         /* Vector assigned by pci_enable_msix */
+        unsigned short  vector;         /* Assigned MSI-X vector */
         void            *dev_id;        /* Priv object associated w/ this msix*/
         char            desc[24];       /* Description of this vector */
 };
diff --git a/drivers/scsi/csiostor/csio_isr.c b/drivers/scsi/csiostor/csio_isr.c
index 91ba91dac675..a8c748a35f9c 100644
--- a/drivers/scsi/csiostor/csio_isr.c
+++ b/drivers/scsi/csiostor/csio_isr.c
@@ -499,7 +499,7 @@ csio_reduce_sqsets(struct csio_hw *hw, int cnt)
 static int
 csio_enable_msix(struct csio_hw *hw)
 {
-        int rv, i, j, k, n, min, cnt;
+        int i, j, k, n, min, cnt;
         struct csio_msix_entries *entryp;
         struct msix_entry *entries;
         int extra = CSIO_EXTRA_VECS;
@@ -521,19 +521,15 @@ csio_enable_msix(struct csio_hw *hw)
 
         csio_dbg(hw, "FW supp #niq:%d, trying %d msix's\n", hw->cfg_niq, cnt);
 
-        while ((rv = pci_enable_msix(hw->pdev, entries, cnt)) >= min)
-                cnt = rv;
-        if (!rv) {
-                if (cnt < (hw->num_sqsets + extra)) {
-                        csio_dbg(hw, "Reducing sqsets to %d\n", cnt - extra);
-                        csio_reduce_sqsets(hw, cnt - extra);
-                }
-        } else {
-                if (rv > 0)
-                        csio_info(hw, "Not using MSI-X, remainder:%d\n", rv);
-
+        cnt = pci_enable_msix_range(hw->pdev, entries, min, cnt);
+        if (cnt < 0) {
                 kfree(entries);
-                return -ENOMEM;
+                return cnt;
+        }
+
+        if (cnt < (hw->num_sqsets + extra)) {
+                csio_dbg(hw, "Reducing sqsets to %d\n", cnt - extra);
+                csio_reduce_sqsets(hw, cnt - extra);
         }
 
         /* Save off vectors */