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SubjectRe: [PATCH net-next 28/35] qlcnic: Use pci_enable_msix_range() instead of pci_enable_msix()
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On Tue, 2014-02-18 at 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: Himanshu Madhani <himanshu.madhani@qlogic.com>
> Cc: Rajesh Borundia <rajesh.borundia@qlogic.com>
> Cc: Shahed Shaikh <shahed.shaikh@qlogic.com>
> Cc: linux-driver@qlogic.com
> Cc: netdev@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> ---
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 8 ++++++--
> 1 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> index 0c077cf..e07fd94 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> @@ -701,13 +701,17 @@ enable_msix:
> for (vector = 0; vector < num_msix; vector++)
> adapter->msix_entries[vector].entry = vector;
>
> - err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
> - if (err == 0) {
> + err = pci_enable_msix_range(pdev,
> + adapter->msix_entries, 1, num_msix);
> +
> + if (err == num_msix) {
> adapter->flags |= QLCNIC_MSIX_ENABLED;
> adapter->ahw->num_msix = num_msix;
> dev_info(&pdev->dev, "using msi-x interrupts\n");
> return 0;
> } else if (err > 0) {
> + pci_disable_msix(pdev);
> +
> dev_info(&pdev->dev,
> "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
> num_msix, err);

Well this log message is nonsense - we have no idea how many vectors are
available any more.

You should remove this and the retry loop that is no longer needed.

Ben.

--
Ben Hutchings
I haven't lost my mind; it's backed up on tape somewhere.
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