Re: [PATCH v8 07/12] scsi: Use block layer helpers to constrain queue affinity

[Hannes Reinecke <hare@suse.de>]

On 9/5/25 16:59, Daniel Wagner wrote:
> Ensure that IRQ affinity setup also respects the queue-to-CPU mapping
> constraints provided by the block layer. This allows the SCSI drivers
> to avoid assigning interrupts to CPUs that the block layer has excluded
> (e.g., isolated CPUs).
> 
> Only convert drivers which are already using the
> pci_alloc_irq_vectors_affinity with the PCI_IRQ_AFFINITY flag set.
> Because these drivers are enabled to let the IRQ core code to
> set the affinity. Also don't update qla2xxx because the nvme-fabrics
> code is not ready yet.
> 
> Signed-off-by: Daniel Wagner <wagi@kernel.org>
> ---
>   drivers/scsi/hisi_sas/hisi_sas_v3_hw.c    | 1 +
>   drivers/scsi/megaraid/megaraid_sas_base.c | 5 ++++-
>   drivers/scsi/mpi3mr/mpi3mr_fw.c           | 6 +++++-
>   drivers/scsi/mpt3sas/mpt3sas_base.c       | 5 ++++-
>   drivers/scsi/pm8001/pm8001_init.c         | 1 +
>   5 files changed, 15 insertions(+), 3 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
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