From 6c57625b3c08f67f562e8db3ba44bb5a27aaf7d2 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Wed, 29 Jan 2014 02:16:45 -0500 Subject: [PATCH] [SCSI] be2iscsi : Fix DMA Out of SW-IOMMU space error Setting DMA bit mask 64 and roll back to 32 if not supported. Signed-off-by: Minh Tran Signed-off-by: Jayamohan Kallickal Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 7b2bd16c8156..3cd4693bc2b4 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -679,8 +679,19 @@ static int beiscsi_enable_pci(struct pci_dev *pcidev) } pci_set_master(pcidev); - if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) { - ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); + ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64)); + if (ret) { + ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); + pci_disable_device(pcidev); + return ret; + } else { + ret = pci_set_consistent_dma_mask(pcidev, + DMA_BIT_MASK(32)); + } + } else { + ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64)); if (ret) { dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n"); pci_disable_device(pcidev); -- 2.20.1