diff mbox

[net-next,17/35] ixgbevf: Use pci_enable_msix_range() instead of pci_enable_msix()

Message ID 9ee830cfd4b417f230f77dd37256ca8e4396ecbe.1392717503.git.agordeev@redhat.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Alexander Gordeev Feb. 18, 2014, 10:11 a.m. UTC
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: Bruce Allan <bruce.w.allan@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |   32 +++++++-------------
 1 files changed, 11 insertions(+), 21 deletions(-)

Comments

Amir Vadai Feb. 18, 2014, 12:01 p.m. UTC | #1
On 18/02/14 11:11 +0100, Alexander Gordeev wrote:
> 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: Bruce Allan <bruce.w.allan@intel.com>
> Cc: e1000-devel@lists.sourceforge.net
> Cc: netdev@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> ---

Acked-By: Amir Vadai <amirv@mellanox.com>
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Amir Vadai Feb. 18, 2014, 12:14 p.m. UTC | #2
On 18/02/14 14:01 +0200, Amir Vadai wrote:
> On 18/02/14 11:11 +0100, Alexander Gordeev wrote:
> > 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: Bruce Allan <bruce.w.allan@intel.com>
> > Cc: e1000-devel@lists.sourceforge.net
> > Cc: netdev@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org
> > ---
> 
> Acked-By: Amir Vadai <amirv@mellanox.com>
Oh, I'm still working for Mellanox - just replied to the wrong mail :)
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David Miller Feb. 18, 2014, 8:56 p.m. UTC | #3
From: Amir Vadai <amirv@mellanox.com>
Date: Tue, 18 Feb 2014 14:01:38 +0200

> On 18/02/14 11:11 +0100, Alexander Gordeev wrote:
>> 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: Bruce Allan <bruce.w.allan@intel.com>
>> Cc: e1000-devel@lists.sourceforge.net
>> Cc: netdev@vger.kernel.org
>> Cc: linux-pci@vger.kernel.org
>> ---
> 
> Acked-By: Amir Vadai <amirv@mellanox.com>

Since you obviously didn't intend to ACK this, I removed this ACK when
I committed the series.
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diff mbox

Patch

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 9df2898..a6af7b7 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1817,7 +1817,6 @@  void ixgbevf_reset(struct ixgbevf_adapter *adapter)
 static int ixgbevf_acquire_msix_vectors(struct ixgbevf_adapter *adapter,
 					int vectors)
 {
-	int err = 0;
 	int vector_threshold;
 
 	/* We'll want at least 2 (vector_threshold):
@@ -1831,33 +1830,24 @@  static int ixgbevf_acquire_msix_vectors(struct ixgbevf_adapter *adapter,
 	 * Right now, we simply care about how many we'll get; we'll
 	 * set them up later while requesting irq's.
 	 */
-	while (vectors >= vector_threshold) {
-		err = pci_enable_msix(adapter->pdev, adapter->msix_entries,
-				      vectors);
-		if (!err || err < 0) /* Success or a nasty failure. */
-			break;
-		else /* err == number of vectors we should try again with */
-			vectors = err;
-	}
+	vectors = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
+					vector_threshold, vectors);
 
-	if (vectors < vector_threshold)
-		err = -ENOMEM;
-
-	if (err) {
+	if (vectors < 0) {
 		dev_err(&adapter->pdev->dev,
 			"Unable to allocate MSI-X interrupts\n");
 		kfree(adapter->msix_entries);
 		adapter->msix_entries = NULL;
-	} else {
-		/*
-		 * Adjust for only the vectors we'll use, which is minimum
-		 * of max_msix_q_vectors + NON_Q_VECTORS, or the number of
-		 * vectors we were allocated.
-		 */
-		adapter->num_msix_vectors = vectors;
+		return vectors;
 	}
 
-	return err;
+	/* Adjust for only the vectors we'll use, which is minimum
+	 * of max_msix_q_vectors + NON_Q_VECTORS, or the number of
+	 * vectors we were allocated.
+	 */
+	adapter->num_msix_vectors = vectors;
+
+	return 0;
 }
 
 /**