Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754106AbaGUWEx (ORCPT ); Mon, 21 Jul 2014 18:04:53 -0400 Received: from p3plsmtps2ded04.prod.phx3.secureserver.net ([208.109.80.198]:60225 "EHLO p3plsmtps2ded04.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750706AbaGUWEw (ORCPT ); Mon, 21 Jul 2014 18:04:52 -0400 x-originating-ip: 72.167.245.219 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, ohering@suse.com, apw@canonical.com, jasowang@redhat.com, jbottomley@parallels.com, hch@infradead.org, linux-scsi@vger.kernel.org Cc: "K. Y. Srinivasan" Subject: [PATCH 1/1] Drivers: scsi: storvsc: Add blist flags Date: Mon, 21 Jul 2014 16:06:01 -0700 Message-Id: <1405983961-18782-1-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/