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scsi: lpfc: fix calls to dma_set_mask_and_coherent() 

The change to use dma_set_mask_and_coherent() incorrectly made a second
call with the 32 bit DMA mask value when the call with the 64 bit DMA mask
value succeeded.  This resulted in NVMe/FC connections failing due to
corrupted data buffers, and various other SCSI/FCP I/O errors.

Fixes: f30e1bfd61 ("scsi: lpfc: use dma_set_mask_and_coherent")
Cc: <stable@vger.kernel.org>
Suggested-by: Don Dutile <ddutile@redhat.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
hifive-unleashed-5.1
Hannes Reinecke 2019-02-18 08:34:19 +01:00 committed by Martin K. Petersen
parent 4a067cf823
commit 56de835704
1 changed files with 12 additions and 7 deletions
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19
drivers/scsi/lpfc/lpfc_init.c
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@ -7361,15 +7361,18 @@ lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
unsigned long bar0map_len, bar2map_len;
int i, hbq_count;
void *ptr;
int error = -ENODEV;
int error;
if (!pdev)
return error;
return -ENODEV;
/* Set the device DMA mask size */
if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (error)
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (error)
return error;
error = -ENODEV;
/* Get the bus address of Bar0 and Bar2 and the number of bytes
* required by each mapping.
@ -9742,11 +9745,13 @@ lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
uint32_t if_type;
if (!pdev)
return error;
return -ENODEV;
/* Set the device DMA mask size */
if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (error)
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (error)
return error;
/*