Messages in this thread | | | Date | Wed, 2 Oct 2013 11:00:51 -0700 | Subject | Re: [PATCH RFC 34/77] ioat: Update MSI/MSI-X interrupts enablement code | From | "Williams, Dan J" <> |
| |
On Wed, Oct 2, 2013 at 10:31 AM, Williams, Dan J <dan.j.williams@intel.com> wrote: > [ dropping all cc's except lkml ] > > On Wed, Oct 2, 2013 at 3:48 AM, Alexander Gordeev <agordeev@redhat.com> wrote: >> As result of recent re-design of the MSI/MSI-X interrupts enabling >> pattern this driver has to be updated to use the new technique to >> obtain a optimal number of MSI/MSI-X interrupts required. >> > > What happens if this patch is not applied. This changelog does not > have enough information for me to judge the patch. Unless I missed it > I do not see a patch 00/77 explaining the background of the change, > and a quick search did not turn up a discussion of why drivers now > need to call pci_msix_table_size() prior to pci_enable_msix.
I see patch 00/77 now and I still don't see the need for ioatdma to be updated. If we fail the subsequent request_irq, the driver will still fall back to trying less interrupts.
| |