Merge branch 'ibmvnic-affinity-hints'

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Nick Child says:

====================
ibmvnic: Introduce affinity hint support

This is a patchset to do 3 things to improve ibmvnic performance:
    1. Assign affinity hints to ibmvnic queue irq's
    2. Update affinity hints on cpu hotplug events
    3. Introduce transmit packet steering (XPS)

NOTE: If irqbalance is running, you need to stop it from overriding
  our affinity hints. To do this you can do one of:
   - systemctl stop irqbalance
   - ban the ibmvnic module irqs
      - you must have the latest irqbalance v9.2, the banmod argument was broken before this
      - in /etc/sysconfig/irqbalance -> IRQBALANCE_ARGS="--banmod=ibmvnic"
      - systemctl restart irqbalance
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2022-11-14 10:47:07 +00:00

parent e384cf35bf df8f66d02d

commit 8a30b30b26

3 changed files with 244 additions and 1 deletions

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239

drivers/net/ethernet/ibm/ibmvnic.c

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5

drivers/net/ethernet/ibm/ibmvnic.h

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1

include/linux/cpuhotplug.h

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