Messages in this thread | | | Subject | Re: [PATCH] PCI/LINK: Account for BW notification in vector calculation | From | Alex G <> | Date | Tue, 23 Apr 2019 12:59:26 -0500 |
| |
On 4/22/19 5:43 PM, Alex Williamson wrote: > On systems that don't support any PCIe services other than bandwidth > notification, pcie_message_numbers() can return zero vectors, causing > the vector reallocation in pcie_port_enable_irq_vec() to retry with > zero, which fails, resulting in fallback to INTx (which might be > broken) for the bandwidth notification service. This can resolve > spurious interrupt faults due to this service on some systems. > > Fixes: e8303bb7a75c ("PCI/LINK: Report degraded links via link bandwidth notification") > Signed-off-by: Alex Williamson <alex.williamson@redhat.com> > ---
+1 Tested on some Dell servers. Everything works as expected. I don't have a system with a device that only supports bandwidth notification.
Alex
| |