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Drivers: add blist flags 

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@microsoft.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
K. Y. Srinivasan 2014-07-21 16:06:01 -07:00 committed by Christoph Hellwig
parent ea2aab2401
commit f3cfabce7a
1 changed files with 10 additions and 0 deletions
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10
drivers/scsi/storvsc_drv.c
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@ -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;
}