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[SCSI] ipr: add MSI support

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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>
This commit is contained in:
Wayne Boyer
2009-01-23 09:17:35 -08:00
committed by James Bottomley
parent 951948a397
commit 5a9ef25b14
2 changed files with 9 additions and 2 deletions
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7
drivers/scsi/ipr.c
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@ -7147,6 +7147,7 @@ static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
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 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
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_release_regions:
out_scsi_host_put:
scsi_host_put(host);
out_disable:
pci_disable_msi(pdev);
pci_disable_device(pdev);
goto out;
}