Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933104AbaAaSUf (ORCPT ); Fri, 31 Jan 2014 13:20:35 -0500 Received: from mail-la0-f45.google.com ([209.85.215.45]:61823 "EHLO mail-la0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932710AbaAaSUc (ORCPT ); Fri, 31 Jan 2014 13:20:32 -0500 Message-ID: <52EBF78B.6040609@cogentembedded.com> Date: Fri, 31 Jan 2014 22:20:43 +0300 From: Sergei Shtylyov Organization: Cogent Embedded User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Alexander Gordeev , linux-kernel@vger.kernel.org CC: Jeff Kirsher , Jesse Brandeburg , Bruce Allan , e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org, linux-pci@vger.kernel.org Subject: Re: [PATCH 17/34] ixgbevf: Use pci_enable_msix_range() References: <3d63d58082b8cb80de7f2cb434ca5d83781e8c9f.1391172839.git.agordeev@redhat.com> In-Reply-To: <3d63d58082b8cb80de7f2cb434ca5d83781e8c9f.1391172839.git.agordeev@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/31/2014 06:08 PM, 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 > --- > drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 33 +++++++------------- > 1 files changed, 12 insertions(+), 21 deletions(-) > diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c > index 9df2898..521a9d7 100644 > --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c > +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c > @@ -1831,33 +1830,25 @@ 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. > + */ Networking code formats multi-line comments slightly differently to the rest of the kernel: /* bla * bla */ Although, you're only moving what was there before you, maybe it's a good time to get this right. WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/