From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <53C37601.7080008@suse.de> Date: Mon, 14 Jul 2014 08:17:37 +0200 From: Hannes Reinecke MIME-Version: 1.0 To: "K. Y. Srinivasan" , jasowang@redhat.com, apw@canonical.com, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, ohering@suse.com, jbottomley@parallels.com, hch@infradead.org, linux-scsi@vger.kernel.org CC: stable@vger.kernel.org Subject: Re: [PATCH 7/7] drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure References: <1405183684-23928-1-git-send-email-kys@microsoft.com> <1405183712-23967-1-git-send-email-kys@microsoft.com> <1405183712-23967-7-git-send-email-kys@microsoft.com> In-Reply-To: <1405183712-23967-7-git-send-email-kys@microsoft.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: On 07/12/2014 06:48 PM, K. Y. Srinivasan wrote: > On some Windows hosts on FC SANs, TEST_UNIT_READY can return SRB_STATUS_ERROR. > Correctly handle this. Note that there is sufficient sense information to > support scsi error handling even in this case. > > In this version of the patch I have addressed comments from > Christoph Hellwig > > Signed-off-by: K. Y. Srinivasan > Cc: > --- > drivers/scsi/storvsc_drv.c | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c > index 9342ba4..29d0329 100644 > --- a/drivers/scsi/storvsc_drv.c > +++ b/drivers/scsi/storvsc_drv.c > @@ -1018,6 +1018,13 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb, > case ATA_12: > set_host_byte(scmnd, DID_PASSTHROUGH); > break; > + /* > + * On Some Windows hosts TEST_UNIT_READY command can return > + * SRB_STATUS_ERROR, let the upper level code deal with it > + * based on the sense information. > + */ > + case TEST_UNIT_READY: > + break; > default: > set_host_byte(scmnd, DID_TARGET_FAILURE); > } > Reviewed-by: Hannes Reinecke Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N�rnberg GF: J. Hawn, J. Guild, F. Imend�rffer, HRB 16746 (AG N�rnberg)