Some systems do not set up 64-bit maps on systems with 2GB or less of
memory installed, so we have to fall back to trying a 32-bit setup.
Signed-off-by: Bryan O'Sullivan <[email protected]>
diff -r 61819d2519e0 -r 1906950392f7 drivers/infiniband/hw/ipath/ipath_driver.c
--- a/drivers/infiniband/hw/ipath/ipath_driver.c Wed Apr 19 15:24:36 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c Wed Apr 19 15:24:36 2006 -0700
@@ -418,9 +418,19 @@ static int __devinit ipath_init_one(stru
ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
if (ret) {
- dev_info(&pdev->dev, "pci_set_dma_mask unit %u "
- "fails: %d\n", dd->ipath_unit, ret);
- goto bail_regions;
+ /*
+ * if the 64 bit setup fails, try 32 bit. Some systems
+ * do not setup 64 bit maps on systems with 2GB or less
+ * memory installed.
+ */
+ ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (ret) {
+ dev_info(&pdev->dev, "pci_set_dma_mask unit %u "
+ "fails: %d\n", dd->ipath_unit, ret);
+ goto bail_regions;
+ }
+ else
+ ipath_dbg("No 64bit DMA mask, used 32 bit mask\n");
}
pci_set_master(pdev);
-
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