Messages in this thread | | | Date | Wed, 2 Oct 2013 17:49:28 -0700 | From | Jon Mason <> | Subject | Re: [PATCH RFC 53/77] ntb: Fix missed call to pci_enable_msix() |
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On Wed, Oct 02, 2013 at 12:49:09PM +0200, Alexander Gordeev wrote: > Current MSI-X enablement code assumes MSI-Xs were successfully > allocated in case less than requested vectors were available. > That assumption is wrong, since MSI-Xs should be enabled with > a repeated call to pci_enable_msix(). This update fixes this.
Good catch, I'll pull it in for my next NTB release.
Thanks, Jon
> > Signed-off-by: Alexander Gordeev <agordeev@redhat.com> > --- > drivers/ntb/ntb_hw.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c > index 1cb6e51..de2062c 100644 > --- a/drivers/ntb/ntb_hw.c > +++ b/drivers/ntb/ntb_hw.c > @@ -1075,6 +1075,10 @@ static int ntb_setup_msix(struct ntb_device *ndev) > "Only %d MSI-X vectors. Limiting the number of queues to that number.\n", > rc); > msix_entries = rc; > + > + rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries); > + if (rc) > + goto err1; > } > > for (i = 0; i < msix_entries; i++) { > -- > 1.7.7.6 >
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