On Tue, Mar 14, 2017 at 1:28 AM, Felix Manlunas <felix.manlu...@cavium.com> wrote: > From: Rick Farrington <ricardo.farring...@cavium.com> > > All IRQs owned by the PF and VF drivers share the same nondescript name > "octeon"; this makes it difficult to setup interrupt affinity. > > Change the IRQ names to reflect their specific purpose: > > LiquidIO<id>-<func>-<type>-<queue pair num> > > Examples: > LiquidIO0-pf0-rxtx-3 > LiquidIO1-vf1-rxtx-0 > LiquidIO0-pf0-aux
Probably too late, but just my 2 cents. If there are multiple LiquidIO cards connected in a system, wouldn't the same issue of how to setup IRQ affinities arise ? How do you map netdev->name to IRQ name ? > > We cannot use netdev->name for naming the IRQs because: > > 1. Early during init, the PF and VF drivers require interrupts to > send/receive control data from the NIC firmware; so the PF and VF > must request IRQs long before the netdev struct is registered. > > 2. The IRQ name can only be specified at the time it is requested. > It cannot be changed after that. You can try splitting IRQ registration and register IRQs for sending/receiving control data with above naming but for queues, IRQs can be registered after netdev struct is registered. Thanks, Sunil.
