Messages in this thread Patch in this message | | | From | "K. Y. Srinivasan" <> | Subject | [PATCH 6/6] scsi: storvsc: Allow write_same when host is windows 10 | Date | Fri, 29 May 2015 13:29:19 -0700 |
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From: keith.mange@microsoft.com <keith.mange@microsoft.com>
Allow WRITE_SAME for Windows10 and above hosts.
Tested-by: Alex Ng <alexng@microsoft.com> Signed-off-by: Keith Mange <keith.mange@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> --- drivers/scsi/storvsc_drv.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 58fa47a..021cbdf 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1488,7 +1488,8 @@ static int storvsc_device_configure(struct scsi_device *sdevice) /* * If the host is WIN8 or WIN8 R2, claim conformance to SPC-3 - * if the device is a MSFT virtual device. + * if the device is a MSFT virtual device. If the host is + * WIN10 or newer, allow write_same. */ if (!strncmp(sdevice->vendor, "Msft", 4)) { switch (vmstor_proto_version) { @@ -1497,6 +1498,9 @@ static int storvsc_device_configure(struct scsi_device *sdevice) sdevice->scsi_level = SCSI_SPC_3; break; } + + if (vmstor_proto_version >= VMSTOR_PROTO_VERSION_WIN10) + sdevice->no_write_same = 0; } return 0; -- 1.7.4.1
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