One simple driver fix for a dma overrun.
The patch is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes
The short changelog is:
John Garry (1):
scsi: hisi_sas: Limit max hw sectors for v3 HW
And the diffstat:
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 7 +++++++
1 file changed, 7 insertions(+)
With full diff below.
James
---
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 7d819fc0395e..eb86afb21aab 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2782,6 +2782,7 @@ static int slave_configure_v3_hw(struct scsi_device *sdev)
struct hisi_hba *hisi_hba = shost_priv(shost);
struct device *dev = hisi_hba->dev;
int ret = sas_slave_configure(sdev);
+ unsigned int max_sectors;
if (ret)
return ret;
@@ -2799,6 +2800,12 @@ static int slave_configure_v3_hw(struct scsi_device *sdev)
}
}
+ /* Set according to IOMMU IOVA caching limit */
+ max_sectors = min_t(size_t, queue_max_hw_sectors(sdev->request_queue),
+ (PAGE_SIZE * 32) >> SECTOR_SHIFT);
+
+ blk_queue_max_hw_sectors(sdev->request_queue, max_sectors);
+
return 0;
}
The pull request you sent on Fri, 01 Jul 2022 11:26:39 -0400:
> git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/067c227379c0ec96cb19ed9aacea6b1281982368
Thank you!
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