diff options
| author | Sreekanth Reddy <sreekanth.reddy@broadcom.com> | 2022-08-25 13:24:54 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-01 00:15:46 -0400 |
| commit | 9df650963bf6d6c2c3fcd325d8c44ca2b99554fe (patch) | |
| tree | fd3e670ce7d5b29434cb10ef799426994e7a8a8a /drivers/scsi/mpt3sas/mpt3sas_base.c | |
| parent | e75c8ea0d73bebdbff3ceb51f55fd735cb232d86 (diff) | |
scsi: mpt3sas: Don't change DMA mask while reallocating pools
When a pool crosses the 4GB boundary region then before reallocating pools
change the coherent DMA mask to 32 bits and keep the normal DMA mask set to
63/64 bits.
Link: https://lore.kernel.org/r/20220825075457.16422-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.c')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index eeebe805dade..f8a3b0dd3ccc 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -2990,19 +2990,26 @@ static int _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev) { struct sysinfo s; + u64 coherent_dma_mask, dma_mask; - if (ioc->is_mcpu_endpoint || - sizeof(dma_addr_t) == 4 || ioc->use_32bit_dma || - dma_get_required_mask(&pdev->dev) <= 32) + if (ioc->is_mcpu_endpoint || sizeof(dma_addr_t) == 4 || + dma_get_required_mask(&pdev->dev) <= 32) { ioc->dma_mask = 32; + coherent_dma_mask = dma_mask = DMA_BIT_MASK(32); /* Set 63 bit DMA mask for all SAS3 and SAS35 controllers */ - else if (ioc->hba_mpi_version_belonged > MPI2_VERSION) + } else if (ioc->hba_mpi_version_belonged > MPI2_VERSION) { ioc->dma_mask = 63; - else + coherent_dma_mask = dma_mask = DMA_BIT_MASK(63); + } else { ioc->dma_mask = 64; + coherent_dma_mask = dma_mask = DMA_BIT_MASK(64); + } + + if (ioc->use_32bit_dma) + coherent_dma_mask = DMA_BIT_MASK(32); - if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask)) || - dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask))) + if (dma_set_mask(&pdev->dev, dma_mask) || + dma_set_coherent_mask(&pdev->dev, coherent_dma_mask)) return -ENODEV; if (ioc->dma_mask > 32) { |