Re: [PATCH v2 RESEND 18/23] pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()

Alexander Gordeev
2014-07-26T08:25:22Z

On Wed, Jul 16, 2014 at 08:05:22PM +0200, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range() or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.

Hi Jack, Lindar,

Could you please review this patch?

Thanks!

> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: xjtuwjp@gmail.com
> Cc: lindar_liu@usish.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> ---
> drivers/scsi/pm8001/pm8001_init.c | 39 +++++++++++++++++++------------------
> 1 files changed, 20 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
> index e837ece..4057c24 100644
> --- a/drivers/scsi/pm8001/pm8001_init.c
> +++ b/drivers/scsi/pm8001/pm8001_init.c
> @@ -729,34 +729,35 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
> sizeof(pm8001_ha->msix_entries[0]);
> for (i = 0; i < max_entry ; i++)
> pm8001_ha->msix_entries[i].entry = i;
> - rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
> + rc = pci_enable_msix_exact(pm8001_ha->pdev, pm8001_ha->msix_entries,
> number_of_intr);
> pm8001_ha->number_of_intr = number_of_intr;
> - if (!rc) {
> - PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
> - "pci_enable_msix request ret:%d no of intr %d\n",
> - rc, pm8001_ha->number_of_intr));
> + if (rc)
> + return rc;
>
> + PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
> + "pci_enable_msix_exact request ret:%d no of intr %d\n",
> + rc, pm8001_ha->number_of_intr));
>
> - for (i = 0; i < number_of_intr; i++) {
> - snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
> - DRV_NAME"%d", i);
> - pm8001_ha->irq_vector[i].irq_id = i;
> - pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
> + for (i = 0; i < number_of_intr; i++) {
> + snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
> + DRV_NAME"%d", i);
> + pm8001_ha->irq_vector[i].irq_id = i;
> + pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
>
> - rc = request_irq(pm8001_ha->msix_entries[i].vector,
> - pm8001_interrupt_handler_msix, flag,
> - intr_drvname[i], &(pm8001_ha->irq_vector[i]));
> - if (rc) {
> - for (j = 0; j < i; j++)
> - free_irq(
> - pm8001_ha->msix_entries[j].vector,
> + rc = request_irq(pm8001_ha->msix_entries[i].vector,
> + pm8001_interrupt_handler_msix, flag,
> + intr_drvname[i], &(pm8001_ha->irq_vector[i]));
> + if (rc) {
> + for (j = 0; j < i; j++) {
> + free_irq(pm8001_ha->msix_entries[j].vector,
> &(pm8001_ha->irq_vector[i]));
> - pci_disable_msix(pm8001_ha->pdev);
> - break;
> }
> + pci_disable_msix(pm8001_ha->pdev);
> + break;
> }
> }
> +
> return rc;
> }
> #endif
> --
> 1.7.7.6
>

--
Regards,
Alexander Gordeev
agordeev@redhat.com