diff options
| author | Karan Tilak Kumar <kartilak@cisco.com> | 2022-05-13 23:56:05 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-05-20 03:16:26 +0300 |
| commit | b559b99a5c08194c14dc271e69ca786771b353dc (patch) | |
| tree | 9cc6d3bfd605e8d158732d7d02400147b686ead3 /drivers/scsi/fnic/fnic_main.c | |
| parent | 9feb5c4c3f95ec42fc12dc92f7216c2603b1a571 (diff) | |
| download | linux-b559b99a5c08194c14dc271e69ca786771b353dc.tar.xz | |
scsi: fnic: Replace DMA mask of 64 bits with 47 bits
Cisco VIC supports only 47 bits. If the host sends DMA addresses that are
greater than 47 bits, it causes work queue (WQ) errors in the VIC.
Link: https://lore.kernel.org/r/20220513205605.81788-1-kartilak@cisco.com
Tested-by: Karan Tilak Kumar <kartilak@cisco.com>
Co-developed-by: Dhanraj Jhawar <djhawar@cisco.com>
Signed-off-by: Dhanraj Jhawar <djhawar@cisco.com>
Co-developed-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/fnic/fnic_main.c')
| -rw-r--r-- | drivers/scsi/fnic/fnic_main.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 460e03a55096..51e7c344ddc3 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -612,10 +612,10 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); /* Query PCI controller on system for DMA addressing - * limitation for the device. Try 64-bit first, and - * fail to 32-bit. + * limitation for the device. Try 47-bit first, and + * fail to 32-bit. Cisco VIC supports 47 bits only. */ - err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(47)); if (err) { err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) { |