On 07/22/2014 01:06 AM, K. Y. Srinivasan wrote:
Add blist flags to permit the reading of the VPD pages even when the target may claim SPC-2 compliance. MSFT targets currently claim SPC-2 compliance while they implement post SPC-2 features. With this patch we can correctly handle WRITE_SAME_16 issues. Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> --- drivers/scsi/storvsc_drv.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 29d0329..15ba695 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -327,6 +327,8 @@ MODULE_PARM_DESC(storvsc_ringbuffer_size, "Ring buffer size (bytes)"); */ static int storvsc_timeout = 180; +static int msft_blist_flags = BLIST_TRY_VPD_PAGES; + #define STORVSC_MAX_IO_REQUESTS 200 static void storvsc_on_channel_callback(void *context); @@ -1449,6 +1451,14 @@ static int storvsc_device_configure(struct scsi_device *sdevice) sdevice->no_write_same = 1; + /* + * Add blist flags to permit the reading of the VPD pages even when + * the target may claim SPC-2 compliance. MSFT targets currently + * claim SPC-2 compliance while they implement post SPC-2 features. + * With this patch we can correctly handle WRITE_SAME_16 issues. + */ + sdevice->sdev_bflags |= msft_blist_flags; + return 0; }
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