[SCSI] ipr: add MSI support
Enable MSI if available/supported.
Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 0782900..3f47cd1 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -7147,6 +7147,7 @@
ENTER;
free_irq(pdev->irq, ioa_cfg);
+ pci_disable_msi(pdev);
iounmap(ioa_cfg->hdw_dma_regs);
pci_release_regions(pdev);
ipr_free_mem(ioa_cfg);
@@ -7432,6 +7433,11 @@
goto out;
}
+ if (!(rc = pci_enable_msi(pdev)))
+ dev_info(&pdev->dev, "MSI enabled\n");
+ else if (ipr_debug)
+ dev_info(&pdev->dev, "Cannot enable MSI\n");
+
dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
@@ -7574,6 +7580,7 @@
out_scsi_host_put:
scsi_host_put(host);
out_disable:
+ pci_disable_msi(pdev);
pci_disable_device(pdev);
goto out;
}