linux-kernel - Re: [PATCH 15/15] scsi: use PCI_IRQ_MSI_TYPES and PCI_IRQ_ALL

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Message-ID: <CAHp75Vcw6tJkq72UHuV=YW__J__baSqFv2dy1akr=RrM5itMfg@mail.gmail.com>
Date:   Tue, 2 Jun 2020 18:41:39 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Piotr Stankiewicz <piotr.stankiewicz@...el.com>
Cc:     Brian King <brking@...ibm.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Jim Gill <jgill@...are.com>,
        VMware PV-Drivers <pv-drivers@...are.com>,
        linux-scsi <linux-scsi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 15/15] scsi: use PCI_IRQ_MSI_TYPES and PCI_IRQ_ALL_TYPES
 where appropriate

On Tue, Jun 2, 2020 at 12:24 PM Piotr Stankiewicz
<piotr.stankiewicz@...el.com> wrote:
>
> Seeing as there is shorthand available to use when asking for any type
> of interrupt, or any type of message signalled interrupt, leverage it.

>         irq_flag = PCI_IRQ_LEGACY;
>         if (ioa_cfg->ipr_chip->has_msi)
> -               irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
> +               irq_flag |= PCI_IRQ_MSI_TYPES;

Perhaps

       if (ioa_cfg->ipr_chip->has_msi)
               irq_flag = PCI_IRQ_ALL_TYPES;
       else
               irq_flag = PCI_IRQ_LEGACY;

?

>         rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
>         if (rc < 0) {
>                 ipr_wait_for_pci_err_recovery(ioa_cfg);
> diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
> index c3f010df641e..825b7db9c713 100644
> --- a/drivers/scsi/vmw_pvscsi.c
> +++ b/drivers/scsi/vmw_pvscsi.c
> @@ -1347,7 +1347,7 @@ static u32 pvscsi_get_max_targets(struct pvscsi_adapter *adapter)
>
>  static int pvscsi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  {
> -       unsigned int irq_flag = PCI_IRQ_MSIX | PCI_IRQ_MSI | PCI_IRQ_LEGACY;
> +       unsigned int irq_flag = PCI_IRQ_ALL_TYPES;
>         struct pvscsi_adapter *adapter;
>         struct pvscsi_adapter adapter_temp;
>         struct Scsi_Host *host = NULL;
> --
> 2.17.2
>


-- 
With Best Regards,
Andy Shevchenko