> -----Original Message----- > From: devel [mailto:driverdev-devel-bounces@xxxxxxxxxxxxxxxxxxxxxx] On > Behalf Of K. Y. Srinivasan > Sent: Friday, May 29, 2015 1:29 PM > To: gregkh@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; > devel@xxxxxxxxxxxxxxxxxxxxxx; ohering@xxxxxxxx; jbottomley@xxxxxxxxxxxxx; > hch@xxxxxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx; apw@xxxxxxxxxxxxx; > vkuznets@xxxxxxxxxx; jasowang@xxxxxxxxxx > Cc: Keith Mange > Subject: [PATCH 6/6] scsi: storvsc: Allow write_same when host is windows 10 > > From: keith.mange@xxxxxxxxxxxxx <keith.mange@xxxxxxxxxxxxx> > > Allow WRITE_SAME for Windows10 and above hosts. > Reviewed-by: Long Li <longli@xxxxxxxxxxxxx> > Tested-by: Alex Ng <alexng@xxxxxxxxxxxxx> > Signed-off-by: Keith Mange <keith.mange@xxxxxxxxxxxxx> > Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > --- > 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@xxxxxxxxxxxxxxxxxxxxxx > http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
