linux-kernel - [PATCH 3/3] scsi: Use try_rc16 and try_vpd

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Date:	Fri, 10 Oct 2014 08:55:02 +0100
From:	Sitsofe Wheeler <sitsofe@...il.com>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	Haiyang Zhang <haiyangz@...rosoft.com>,
	Christoph Hellwig <hch@....de>, Hannes Reinecke <hare@...e.de>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>
Subject: [PATCH 3/3] scsi: Use try_rc16 and try_vpd_pages quirks on Hyper-V
 virtual disks

Microsoft Hyper-V virtual disks currently only claim SPC-2 compliance causing
feature tests not to be run (even though those features are correctly announced
elsewhere). Make Hyper-V virtual disks quirk past READ CAPACITY(16) and VPD
page guards so appropriate tests are performed.

This only impacts Hyper-V's VHD/VHDX virtual disks and not passthrough devices.

Signed-off-by: Sitsofe Wheeler <sitsofe@...oo.com>
---
 drivers/scsi/scsi_devinfo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 49014a1..3eadcb1 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -210,6 +210,7 @@ static struct {
 	{"Medion", "Flash XL  MMC/SD", "2.6D", BLIST_FORCELUN},
 	{"MegaRAID", "LD", NULL, BLIST_FORCELUN},
 	{"MICROP", "4110", NULL, BLIST_NOTQ},
+	{"Msft", "Virtual Disk", "1.0", BLIST_TRY_VPD_PAGES | BLIST_TRY_RC16},
 	{"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
 	{"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
 	{"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
-- 
1.9.3

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