ibmvnic: Assign IRQ affinity hints to device queues

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Assign affinity hints to ibmvnic device queue interrupts.
Affinity hints are assigned and removed during sub-crq init and
teardown, respectively. This update should improve latency if
utilized as interrupt lines and processing are more equally
distributed among CPU's. This implementation is based on the
virtio_net driver.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Reviewed-by: Rick Lindsley <ricklind@linux.ibm.com>
Reviewed-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Nick Child 2022-11-10 15:32:16 -06:00 • committed by David S. Miller

parent e384cf35bf

commit 44fbc1b6e0

2 changed files with 141 additions and 0 deletions

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140

drivers/net/ethernet/ibm/ibmvnic.c

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1

drivers/net/ethernet/ibm/ibmvnic.h

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