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scsi: fnic: Replace DMA mask of 64 bits with 47 bits

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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>
This commit is contained in:
Karan Tilak Kumar 2022-05-13 13:56:05 -07:00 committed by Martin K. Petersen
parent 9feb5c4c3f
commit b559b99a5c
2 changed files with 4 additions and 4 deletions
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2
drivers/scsi/fnic/fnic.h
View file

@ -39,7 +39,7 @@
#define DRV_NAME "fnic"
#define DRV_DESCRIPTION "Cisco FCoE HBA Driver"
#define DRV_VERSION "1.6.0.53"
#define DRV_VERSION "1.6.0.54"
#define PFX DRV_NAME ": "
#define DFX DRV_NAME "%d: "

6
drivers/scsi/fnic/fnic_main.c
View file

@ -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) {