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authorAlexander Gordeev <agordeev@redhat.com>2014-02-26 10:02:41 +0100
committerJens Axboe <axboe@fb.com>2014-03-13 14:56:39 -0600
commit371ff93a72a1aa14773e2e17548796db8c004a6c (patch)
tree4e0ef1d797bad1cad9d43bc90e69dfa2ad75cc8d
parent106fd892bc714a9b7c28daba98a3623a41c32f1a (diff)
cciss: Fallback to MSI rather than to INTx if MSI-X failed
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> Cc: Mike Miller <mike.miller@hp.com> Cc: iss_storagedev@hp.com Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-pci@vger.kernel.org Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/block/cciss.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 036e8ab86c71..73894ca33956 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4092,11 +4092,9 @@ static void cciss_interrupt_mode(ctlr_info_t *h)
if (err > 0) {
dev_warn(&h->pdev->dev,
"only %d MSI-X vectors available\n", err);
- goto default_int_mode;
} else {
dev_warn(&h->pdev->dev,
"MSI-X init failed %d\n", err);
- goto default_int_mode;
}
}
if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {