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[SCSI] lpfc: fix hang on SGI ia64 platform 

In testing 2.6.31 on one of our ia64 platforms I've encountered a hang
due to the driver using hardware ATEs which are a limited resource.
This is because the driver does not set the dma consistent mask to
64 bits.

Signed-off-by: Michael Reed <mdr@sgi.com>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Michael Reed 2009-09-18 12:02:05 -05:00 committed by James Bottomley
parent 3067e02f8f
commit 8e68597d08
1 changed files with 12 additions and 4 deletions
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16
drivers/scsi/lpfc/lpfc_init.c
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@ -4506,9 +4506,13 @@ lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
pdev = phba->pcidev;
/* Set the device DMA mask size */
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
|| pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
|| pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
return error;
}
}
/* Get the bus address of Bar0 and Bar2 and the number of bytes
* required by each mapping.
@ -6021,9 +6025,13 @@ lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
pdev = phba->pcidev;
/* Set the device DMA mask size */
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
|| pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
|| pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
return error;
}
}
/* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
* number of bytes required by each mapping. They are actually