[PATCH V2 4/9] scsi: lpfc: use blk_mq_max_nr_hw_queues() to calculate io vectors

[Ming Lei]

On Wed, Jul 26, 2023 at 03:12:16PM -0700, Justin Tee wrote:
> Hi Ming,
> 
> From version 1 of the patchset, I thought we had planned to put the
> min comparison right above pci_alloc_irq_vectors instead?
> 
> diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
> index 3221a934066b..20410789e8b8 100644
> --- a/drivers/scsi/lpfc/lpfc_init.c
> +++ b/drivers/scsi/lpfc/lpfc_init.c
> @@ -13025,6 +13025,8 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
>                 flags |= PCI_IRQ_AFFINITY;
>         }
> 
> +       vectors = min_t(unsigned int, vectors, scsi_max_nr_hw_queues());

Strictly speaking, the above change is better, but non-managed irq
doesn't have such issue, that is why I just apply the change on managed
irq branch.


Thanks, 
Ming