diff options
| author | Ranjan Kumar <ranjan.kumar@broadcom.com> | 2026-04-14 16:38:11 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2026-04-20 22:22:33 -0400 |
| commit | 04631f55afc543d5431a2bdee7f6cc0f2c0debe7 (patch) | |
| tree | fa17f9c92de112819bf41f5f5f1d79b2996c0d12 /include/linux/workqueue.h | |
| parent | 7b03c93d2beb91c6abae322a1f25447b5b3bb9e6 (diff) | |
scsi: mpt3sas: Limit NVMe request size to 2 MiB
The HBA firmware reports NVMe MDTS values based on the underlying drive
capability. However, because the driver allocates a fixed 4K buffer for
the PRP list, accommodating at most 512 entries, the driver supports a
maximum I/O transfer size of 2 MiB.
Limit max_hw_sectors to the smaller of the reported MDTS and the 2 MiB
driver limit to prevent issuing oversized I/O that may lead to a kernel
oops.
Cc: stable@vger.kernel.org
Fixes: 9b8b84879d4a ("block: Increase BLK_DEF_MAX_SECTORS_CAP")
Reported-by: Mira Limbeck <m.limbeck@proxmox.com>
Closes: https://lore.kernel.org/r/291f78bf-4b4a-40dd-867d-053b36c564b3@proxmox.com
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b8b84879d4a
Suggested-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Tested-by: Mira Limbeck <m.limbeck@proxmox.com>
Link: https://patch.msgid.link/20260414110811.85156-1-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/linux/workqueue.h')
0 files changed, 0 insertions, 0 deletions