diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:10 +0000 |
| commit | 2e7b21ebb8f845570641035f8a7832d33d8e5135 (patch) | |
| tree | 3db92cd227f359a58c62582e954a78616c9a3426 /drivers/scsi/mpi3mr/mpi3mr_os.c | |
| parent | Adding debian version 6.10.4-1. (diff) | |
| download | linux-2e7b21ebb8f845570641035f8a7832d33d8e5135.tar.xz linux-2e7b21ebb8f845570641035f8a7832d33d8e5135.zip | |
Merging upstream version 6.10.6.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/scsi/mpi3mr/mpi3mr_os.c')
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_os.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index bce639a6cc..c051692395 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -3453,6 +3453,17 @@ static int mpi3mr_prepare_sg_scmd(struct mpi3mr_ioc *mrioc, scmd->sc_data_direction); priv->meta_sg_valid = 1; /* To unmap meta sg DMA */ } else { + /* + * Some firmware versions byte-swap the REPORT ZONES command + * reply from ATA-ZAC devices by directly accessing in the host + * buffer. This does not respect the default command DMA + * direction and causes IOMMU page faults on some architectures + * with an IOMMU enforcing write mappings (e.g. AMD hosts). + * Avoid such issue by making the REPORT ZONES buffer mapping + * bi-directional. + */ + if (scmd->cmnd[0] == ZBC_IN && scmd->cmnd[1] == ZI_REPORT_ZONES) + scmd->sc_data_direction = DMA_BIDIRECTIONAL; sg_scmd = scsi_sglist(scmd); sges_left = scsi_dma_map(scmd); } |