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hpsa: Fallback to MSI rather than to INTx if MSI-X failed

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Currently the driver falls back to INTx mode when MSI-X
initialization failed. This is a suboptimal behaviour
for chips that also support MSI. This update changes that
behaviour and falls back to MSI mode in case MSI-X mode
initialization failed.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Cc: iss_storagedev@hp.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Alexander Gordeev 2014-08-18 08:01:41 +02:00 committed by Christoph Hellwig
parent ed81d7741e
commit 49bd1a8f96
1 changed files with 0 additions and 1 deletions
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drivers/scsi/hpsa.c
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@ -6176,7 +6176,6 @@ static void hpsa_interrupt_mode(struct ctlr_info *h)
dev_warn(&h->pdev->dev, "MSI-X init failed %d\n",
err);
h->msix_vector = 0;
goto default_int_mode;
}
}
if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {