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From: Roland Dreier <rolandd@cisco.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-scsi@vger.kernel.org
Subject: Re: I want scsi_target_block() in interrupt context
Date: Wed, 29 Jun 2005 10:52:18 -0700	[thread overview]
Message-ID: <5264vxdp9p.fsf@topspin.com> (raw)
In-Reply-To: <20050629173629.GA32197@infradead.org> (Christoph Hellwig's message of "Wed, 29 Jun 2005 18:36:29 +0100")

    Christoph> Just allocate one scsi_host per connection.

OK, that solves the queuing problem nicely.

Right now, I create a scsi_host for each local IB port.  For each
scsi_host, I have a writable sysfs attribute that userspace can put
the addresses of remote ports to connect to.  Any preference for how
to implement the mechanism for userspace to pass in a remote address
to connect to?

Also, with my current scheme, I have a nice hierarchy of devices from
host port to target port to LUN.  Having this topology available seems
nice -- are we losing anything useful for multipathing etc. by not
having a device for the host port?

Thanks,
  Roland

  reply	other threads:[~2005-06-29 17:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-29 17:27 I want scsi_target_block() in interrupt context Roland Dreier
2005-06-29 17:36 ` Christoph Hellwig
2005-06-29 17:52   ` Roland Dreier [this message]
2005-06-29 20:20     ` Mike Christie
2005-06-29 20:41       ` Roland Dreier
2005-06-29 20:48         ` Mike Christie
2005-06-30  0:01           ` Roland Dreier
2005-07-01  0:24             ` Mike Christie

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