| Message ID | 1432931359-14473-6-git-send-email-kys@microsoft.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
> -----Original Message----- > From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On > Behalf Of K. Y. Srinivasan > Sent: Friday, May 29, 2015 1:29 PM > To: gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org; > devel@linuxdriverproject.org; ohering@suse.com; jbottomley@parallels.com; > hch@infradead.org; linux-scsi@vger.kernel.org; apw@canonical.com; > vkuznets@redhat.com; jasowang@redhat.com > Cc: Keith Mange > Subject: [PATCH 6/6] scsi: storvsc: Allow write_same when host is windows 10 > > From: keith.mange@microsoft.com <keith.mange@microsoft.com> > > Allow WRITE_SAME for Windows10 and above hosts. > Reviewed-by: Long Li <longli@microsoft.com> > 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 > > _______________________________________________ > devel mailing list > devel@linuxdriverproject.org > http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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;