linux-kernel - Re: [PATCH V2 1/2] scsi: storvsc: Install the storvsc specific timeout handler for FC devices

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Message-ID: <20160128082840.GD27565@c203.arch.suse.de>
Date:	Thu, 28 Jan 2016 09:28:40 +0100
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, ohering@...e.com,
	jbottomley@...allels.com, hch@...radead.org,
	linux-scsi@...r.kernel.org, apw@...onical.com, vkuznets@...hat.com,
	jasowang@...hat.com, martin.petersen@...cle.com, hare@...e.de
Subject: Re: [PATCH V2 1/2] scsi: storvsc: Install the storvsc specific
 timeout handler for FC devices

On Wed, Jan 27, 2016 at 06:22:44PM -0800, K. Y. Srinivasan wrote:
> The default timeout routine used for FC transport is not
> suitable for FC devices managed by storvsc since FC devices
> managed by storvsc driver do not have an rport associated
> with them. Use the time out handler used for SCSI devices
> for FC devices as well.
> 
> Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
> Reviewed-by: Alex Ng <alexng@...rosoft.com>
> Tested-by: Vivek Yadav <vyadav@...rosoft.com>
> ---
>  drivers/scsi/storvsc_drv.c |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
> index 41c115c..622f64a 100644
> --- a/drivers/scsi/storvsc_drv.c
> +++ b/drivers/scsi/storvsc_drv.c
> @@ -42,6 +42,7 @@
>  #include <scsi/scsi_devinfo.h>
>  #include <scsi/scsi_dbg.h>
>  #include <scsi/scsi_transport_fc.h>
> +#include <scsi/scsi_transport.h>
>  
>  /*
>   * All wire protocol details (storage protocol between the guest and the host)
> @@ -1770,6 +1771,11 @@ static int __init storvsc_drv_init(void)
>  	fc_transport_template = fc_attach_transport(&fc_transport_functions);
>  	if (!fc_transport_template)
>  		return -ENODEV;
> +
> +	/*
> +	 * Install Hyper-V specific timeout handler.
> +	 */
> +	fc_transport_template->eh_timed_out = storvsc_eh_timed_out;
>  #endif
>  
>  	ret = vmbus_driver_register(&storvsc_drv);
> -- 
> 1.7.4.1
> 
> --
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Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>
-- 
Johannes Thumshirn                                          Storage
jthumshirn@...e.de                                +49 911 74053 689
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