From: Bart Van Assche <bvanassche@acm.org>
To: Jeremy Linton <jlinton@tributary.com>
Cc: Hannes Reinecke <hare@suse.de>,
"Ewan D. Milne" <emilne@redhat.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH RFC 0/9] [SCSI] Enhanced sense and Unit Attention handling
Date: Mon, 28 Jan 2013 16:44:08 +0100 [thread overview]
Message-ID: <51069CC8.3000103@acm.org> (raw)
In-Reply-To: <5106939E.1010301@tributary.com>
On 01/28/13 16:05, Jeremy Linton wrote:
> What I think your looking for is RSCN (Registered State Change notification).
> Hook that, and then check the name server. This will tell you when ports get
> added/removed. You can then report luns against lun 0 of all the known target
> ports. This allows you to transparently detect changes.
>
> Otherwise, you run the risk of trapping UA's in the lower level portions of
> the stack that _REALLY_ need to be propagated to the controlling driver or
> application.
Thanks for the feedback. Unfortunately sending an RSCN is only possible
when using Fibre Channel as transport layer. I'm looking for a solution
that also works with other SCSI transports, e.g. iSCSI and SRP.
Bart.
next prev parent reply other threads:[~2013-01-28 15:44 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-18 16:27 [PATCH RFC 0/9] [SCSI] Enhanced sense and Unit Attention handling Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 1/9] [SCSI] Detect overflow of sense data buffer Ewan D. Milne
2013-01-18 16:46 ` James Bottomley
2013-01-21 7:26 ` Hannes Reinecke
2013-01-21 8:58 ` James Bottomley
2013-01-21 17:42 ` Douglas Gilbert
2013-01-22 15:10 ` Ewan Milne
2013-01-23 7:16 ` Hannes Reinecke
2013-01-22 15:08 ` Ewan Milne
2013-01-23 10:44 ` Hannes Reinecke
2013-01-23 13:06 ` James Bottomley
2013-01-23 21:21 ` Ewan Milne
2013-01-18 16:27 ` [PATCH RFC 2/9] [SCSI] Generate uevent on sd capacity change Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 3/9] [SCSI] Add a kernel config option for enhanced Unit Attention support Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 4/9] [SCSI] Rename scsi_evt_xxx to sdev_evt_xxx and scsi_event to sdev_event Ewan D. Milne
2013-01-22 17:33 ` Bart Van Assche
2013-01-23 21:08 ` Ewan Milne
2013-01-22 17:38 ` Bart Van Assche
2013-01-23 20:39 ` Ewan Milne
2013-01-18 16:27 ` [PATCH RFC 5/9] [SCSI] Add support for scsi_target events Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 6/9] [SCSI] Generate uevents for certain Unit Attention codes Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 7/9] [SCSI] Add sysfs support for enhanced Unit Attention handling Ewan D. Milne
2013-01-18 16:27 ` [PATCH RFC 8/9] [SCSI] Add sense and Unit Attention generation to scsi_debug Ewan D. Milne
2013-01-19 18:43 ` Douglas Gilbert
2013-01-22 15:12 ` Ewan Milne
2013-01-18 16:27 ` [PATCH RFC 9/9] [SCSI] Streamline detection of FM/EOM/ILI status Ewan D. Milne
2013-01-24 0:19 ` [PATCH RFC 0/9] [SCSI] Enhanced sense and Unit Attention handling Bart Van Assche
2013-01-24 11:38 ` Hannes Reinecke
2013-01-24 14:00 ` Ewan Milne
2013-01-24 14:01 ` Mike Christie
2013-01-24 22:02 ` Ewan Milne
2013-01-24 22:47 ` Mike Christie
2013-01-24 14:38 ` Bart Van Assche
2013-01-24 14:51 ` Hannes Reinecke
2013-01-24 15:00 ` Mike Christie
2013-01-24 15:15 ` Hannes Reinecke
2013-01-24 22:00 ` Ewan Milne
2013-01-26 18:20 ` Mike Christie
2013-01-28 6:56 ` Hannes Reinecke
2013-01-28 15:05 ` Jeremy Linton
2013-01-28 15:44 ` Bart Van Assche [this message]
2013-01-28 15:48 ` Hannes Reinecke
2013-01-28 20:26 ` James Bottomley
2013-01-28 15:52 ` Jeremy Linton
2013-01-28 16:04 ` Ewan Milne
2013-01-28 16:18 ` Mike Christie
2013-01-29 5:01 ` Shyam_Iyer
2013-01-24 13:53 ` Ewan Milne
2013-01-31 16:27 ` Ewan Milne
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