-----Original Message----- From: Jesper Dangaard Brouer [mailto:jbrouer@xxxxxxxxxx] Sent: Wednesday, June 30, 2021 3:17 PM To: Christoph Hellwig <hch@xxxxxxxxxxxxx> Cc: Don Brace <don.brace@xxxxxxxxxxxxx>; linux-scsi@xxxxxxxxxxxxxxx Subject: smartpqi cannot change IRQ smp_affinity Hi Hellwig and Don, On driver smartpqi I cannot change smp_affinity and smp_affinity_list entries. It was suppose to be fixed by this patch: https://patchwork.kernel.org/project/linux-scsi/patch/154422179851.1218.10349207247849277036.stgit@brunhilda/ I can see that Hellwig added back PCI_IRQ_AFFINITY flag in commit 5219822687be ("scsi: smartpqi: switch to pci_alloc_irq_vectors"). Is there another way I can control which CPU that process IRQs from the disk controller? --Jesper (lspci output below) b2:00.0 Serial Attached SCSI controller: Adaptec Smart Storage PQI SAS (rev 01) Kernel driver in use: smartpqi Kernel modules: smartpqi Don: Can you tell us what OS you are running and the driver version? Output from uname -r and /sys/class/scsi_host/host4/driver_version My system is using host4, it may be different on your system.
