On Tue, Jul 20, 2021 at 7:26 PM Nitesh Narayan Lal [off-list ref] wrote:

The drivers currently rely on irq_set_affinity_hint() to either set the
affinity_hint that is consumed by the userspace and/or to enforce a custom
affinity.

irq_set_affinity_hint() as the name suggests is originally introduced to
only set the affinity_hint to help the userspace in guiding the interrupts
and not the affinity itself. However, since the commit

        e2e64a932556 "genirq: Set initial affinity in irq_set_affinity_hint()"

[...]

 drivers/infiniband/hw/irdma/hw.c              |  4 +-
 drivers/mailbox/bcm-flexrm-mailbox.c          |  4 +-
 drivers/net/ethernet/cisco/enic/enic_main.c   |  8 +--
 drivers/net/ethernet/emulex/benet/be_main.c   |  4 +-
 drivers/net/ethernet/huawei/hinic/hinic_rx.c  |  4 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c   |  8 +--
 drivers/net/ethernet/intel/iavf/iavf_main.c   |  8 +--
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 ++--
 drivers/net/ethernet/mellanox/mlx4/eq.c       |  8 ++-
 .../net/ethernet/mellanox/mlx5/core/pci_irq.c |  8 +--
 drivers/scsi/lpfc/lpfc_init.c                 |  4 +-
 drivers/scsi/megaraid/megaraid_sas_base.c     | 27 +++++-----
 drivers/scsi/mpt3sas/mpt3sas_base.c           | 21 ++++----
 include/linux/interrupt.h                     | 53 ++++++++++++++++++-
 kernel/irq/manage.c                           |  8 +--
 15 files changed, 114 insertions(+), 65 deletions(-)

--

Gentle ping.
Any comments on the following patches:

  genirq: Provide new interfaces for affinity hints
  scsi: megaraid_sas: Use irq_set_affinity_and_hint
  scsi: mpt3sas: Use irq_set_affinity_and_hint
  enic: Use irq_update_affinity_hint
  be2net: Use irq_update_affinity_hint
  mailbox: Use irq_update_affinity_hint
  hinic: Use irq_set_affinity_and_hint

or any other patches?

-- 
Thanks
Nitesh