Message ID | 1686343101-18930-1-git-send-email-mikelley@microsoft.com |
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State | New |
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[1/1] scsi: storvsc: Always set no_report_opcodes
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Commit Message
Michael Kelley (LINUX)
June 9, 2023, 8:38 p.m. UTC
Hyper-V synthetic SCSI devices do not support the MAINTENANCE_IN SCSI
command, so scsi_report_opcode() always fails, resulting in messages
like this:
hv_storvsc <guid>: tag#205 cmd 0xa3 status: scsi 0x2 srb 0x86 hv 0xc0000001
The recently added support for command duration limits calls
scsi_report_opcode() four times as each device comes online, which
significantly increases the number of messages logged in a system with
many disks.
Fix the problem by always marking Hyper-V synthetic SCSI devices as
not supporting scsi_report_opcode(). With this setting, the
MAINTENANCE_IN SCSI command is not issued and no messages are logged.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
---
drivers/scsi/storvsc_drv.c | 2 ++
1 file changed, 2 insertions(+)
Comments
On Fri, 09 Jun 2023 13:38:21 -0700, Michael Kelley wrote: > Hyper-V synthetic SCSI devices do not support the MAINTENANCE_IN SCSI > command, so scsi_report_opcode() always fails, resulting in messages > like this: > > hv_storvsc <guid>: tag#205 cmd 0xa3 status: scsi 0x2 srb 0x86 hv 0xc0000001 > > The recently added support for command duration limits calls > scsi_report_opcode() four times as each device comes online, which > significantly increases the number of messages logged in a system with > many disks. > > [...] Applied to 6.4/scsi-fixes, thanks! [1/1] scsi: storvsc: Always set no_report_opcodes https://git.kernel.org/mkp/scsi/c/31d16e712bdc
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index e6bc622..659196a 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1567,6 +1567,8 @@ static int storvsc_device_configure(struct scsi_device *sdevice) { blk_queue_rq_timeout(sdevice->request_queue, (storvsc_timeout * HZ)); + /* storvsc devices don't support MAINTENANCE_IN SCSI cmd */ + sdevice->no_report_opcodes = 1; sdevice->no_write_same = 1; /*