From: Bart Van Assche <Bart.VanAssche@sandisk.com>
To: "hch@lst.de" <hch@lst.de>, "axboe@fb.com" <axboe@fb.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"snitzer@redhat.com" <snitzer@redhat.com>,
"j-nomura@ce.jp.nec.com" <j-nomura@ce.jp.nec.com>
Subject: Re: [dm-devel] split scsi passthrough fields out of struct request V2
Date: Fri, 27 Jan 2017 00:38:51 +0000 [thread overview]
Message-ID: <1485477510.2540.27.camel@sandisk.com> (raw)
In-Reply-To: <b98195e7-6e04-5a59-8b83-ce2e1c5c4e1a@fb.com>
On Thu, 2017-01-26 at 16:50 -0700, Jens Axboe wrote:
> Clearly we are missing some requests. How do I setup dm similarly to
> you?
>
> Does it reproduce without Christoph's patchset?
Hello Jens,
I see similar behavior with the blk-mq-sched branch of
git://git.kernel.dk/linux-block.git (git commit ID 0efe27068ecf):
booting happens much slower than usual and I/O hangs if I run the
srp-test software.
Regarding creating a similar dm setup: I hope that in the future it
will become possible to run the srp-test software without any special
hardware and with in-tree drivers. Today running the srp-test software
with in-tree drivers namely requires IB hardware. This is how to run the
srp-test software today with in-tree drivers:
* Find a system with at least two InfiniBand ports.
* Make sure that the appropriate IB driver in the kernel is enabled and
also that LIO (CONFIG_TARGET_CORE=m and CONFIG_TCM_FILEIO=m), ib_srp,
ib_srpt and dm-mpath are built as kernel modules.
* If none of the IB ports are connected to an IB switch, connect the
two ports to each other and configure and start the opensm software
such that the port states change from "Initializing" to "Active".
* Check with "ibstat | grep State: Active" that at least one port is
in the active state.
* Configure multipathd as explained in
https://github.com/bvanassche/srp-test/blob/master/README.md.
* Restart multipathd to make sure it picks up /etc/multipath.conf.
* Clone https://github.com/bvanassche/srp-test and start it as follows:
srp-test/run_tests -t 02-mq
Bart.
WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@sandisk.com>
To: "hch@lst.de" <hch@lst.de>, "axboe@fb.com" <axboe@fb.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"snitzer@redhat.com" <snitzer@redhat.com>,
"j-nomura@ce.jp.nec.com" <j-nomura@ce.jp.nec.com>
Subject: Re: [dm-devel] split scsi passthrough fields out of struct request V2
Date: Fri, 27 Jan 2017 00:38:51 +0000 [thread overview]
Message-ID: <1485477510.2540.27.camel@sandisk.com> (raw)
In-Reply-To: <b98195e7-6e04-5a59-8b83-ce2e1c5c4e1a@fb.com>
On Thu, 2017-01-26 at 16:50 -0700, Jens Axboe wrote:
> Clearly we are missing some requests. How do I setup dm similarly to
> you?
>=20
> Does it reproduce without Christoph's patchset?
Hello Jens,
I see similar behavior with the blk-mq-sched branch of
git://git.kernel.dk/linux-block.git (git commit ID 0efe27068ecf):
booting happens much slower than usual and I/O hangs if I run the
srp-test software.
Regarding creating a similar dm setup: I hope that in the future it
will become possible to run the srp-test software without any special
hardware and with in-tree drivers. Today running the srp-test software
with in-tree drivers namely requires IB hardware. This is how to run the
srp-test software today with in-tree drivers:
* Find a system with at least two InfiniBand ports.
* Make sure that the appropriate IB driver in the kernel is enabled and
also that LIO (CONFIG_TARGET_CORE=3Dm and CONFIG_TCM_FILEIO=3Dm), ib_srp,
ib_srpt and dm-mpath are built as kernel modules.
* If none of the IB ports are connected to an IB switch, connect the
two ports to each other and configure and start the opensm software
such that the port states change from "Initializing" to "Active".
* Check with "ibstat | grep State: Active" that at least one port is
in the active state.
* Configure multipathd as explained in
https://github.com/bvanassche/srp-test/blob/master/README.md.
* Restart multipathd to make sure it picks up /etc/multipath.conf.
* Clone https://github.com/bvanassche/srp-test and start it as follows:
srp-test/run_tests -t 02-mq
Bart.=
next prev parent reply other threads:[~2017-01-27 0:38 UTC|newest]
Thread overview: 172+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-25 17:25 split scsi passthrough fields out of struct request V2 Christoph Hellwig
2017-01-25 17:25 ` [PATCH 01/18] block: add a op_is_flush helper Christoph Hellwig
2017-01-26 2:58 ` Martin K. Petersen
2017-01-26 22:38 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 02/18] md: cleanup bio op / flags handling in raid1_write_request Christoph Hellwig
2017-01-26 2:59 ` Martin K. Petersen
2017-01-26 23:18 ` Bart Van Assche
2017-01-26 23:18 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 03/18] block: fix elevator init check Christoph Hellwig
2017-01-26 3:01 ` Martin K. Petersen
2017-01-26 23:21 ` Bart Van Assche
2017-01-26 23:21 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 04/18] block: simplify blk_init_allocated_queue Christoph Hellwig
2017-01-26 3:02 ` Martin K. Petersen
2017-01-26 23:27 ` Bart Van Assche
2017-01-26 23:27 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 05/18] block: allow specifying size for extra command data Christoph Hellwig
2017-01-26 3:15 ` Martin K. Petersen
2017-01-27 16:12 ` Christoph Hellwig
2017-01-27 16:12 ` Christoph Hellwig
2017-01-27 17:21 ` Bart Van Assche
2017-01-27 17:21 ` Bart Van Assche
2017-01-27 17:26 ` Jens Axboe
2017-01-27 17:26 ` Jens Axboe
2017-01-27 17:30 ` Bart Van Assche
2017-01-27 17:30 ` Bart Van Assche
2017-01-27 17:33 ` Jens Axboe
2017-01-25 17:25 ` [PATCH 06/18] dm: remove incomple BLOCK_PC support Christoph Hellwig
2017-01-27 17:32 ` Bart Van Assche
2017-01-27 17:32 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 07/18] dm: always defer request allocation to the owner of the request_queue Christoph Hellwig
2017-01-27 16:34 ` Mike Snitzer
2017-01-27 16:34 ` Mike Snitzer
2017-01-27 16:36 ` Christoph Hellwig
2017-01-27 16:36 ` Christoph Hellwig
2017-01-27 16:44 ` Mike Snitzer
2017-01-27 16:44 ` Mike Snitzer
2017-01-25 17:25 ` [PATCH 08/18] scsi_dh_rdac: switch to scsi_execute_req_flags() Christoph Hellwig
2017-01-26 3:18 ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 09/18] scsi_dh_emc: " Christoph Hellwig
2017-01-26 3:19 ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 10/18] scsi_dh_hp_sw: " Christoph Hellwig
2017-01-26 3:20 ` Martin K. Petersen
2017-01-26 3:20 ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 11/18] scsi: remove gfp_flags member in scsi_host_cmd_pool Christoph Hellwig
2017-01-26 3:21 ` Martin K. Petersen
2017-01-27 17:38 ` Bart Van Assche
2017-01-27 17:38 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 12/18] scsi: respect unchecked_isa_dma for blk-mq Christoph Hellwig
2017-01-26 3:23 ` Martin K. Petersen
2017-01-27 17:45 ` Bart Van Assche
2017-01-27 17:45 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 13/18] scsi: remove scsi_cmd_dma_pool Christoph Hellwig
2017-01-26 3:24 ` Martin K. Petersen
2017-01-27 17:51 ` Bart Van Assche
2017-01-27 17:51 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 14/18] scsi: remove __scsi_alloc_queue Christoph Hellwig
2017-01-26 3:25 ` Martin K. Petersen
2017-01-27 17:58 ` Bart Van Assche
2017-01-27 17:58 ` Bart Van Assche
2017-01-28 8:23 ` hch
2017-01-25 17:25 ` [PATCH 15/18] scsi: allocate scsi_cmnd structures as part of struct request Christoph Hellwig
2017-01-26 3:30 ` Martin K. Petersen
2017-01-27 18:39 ` Bart Van Assche
2017-01-27 18:39 ` Bart Van Assche
2017-01-28 8:25 ` hch
2017-01-28 8:25 ` hch
2017-01-25 17:25 ` [PATCH 16/18] block/bsg: move queue creation into bsg_setup_queue Christoph Hellwig
2017-01-27 18:48 ` Bart Van Assche
2017-01-27 18:48 ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 17/18] block: split scsi_request out of struct request Christoph Hellwig
2017-01-25 17:25 ` [PATCH 18/18] block: don't assign cmd_flags in __blk_rq_prep_clone Christoph Hellwig
2017-01-26 3:31 ` Martin K. Petersen
2017-01-26 18:29 ` split scsi passthrough fields out of struct request V2 Bart Van Assche
2017-01-26 18:29 ` Bart Van Assche
2017-01-26 18:44 ` Jens Axboe
2017-01-26 18:52 ` Bart Van Assche
2017-01-26 18:52 ` Bart Van Assche
2017-01-26 18:57 ` Jens Axboe
2017-01-26 18:59 ` hch
2017-01-26 19:01 ` Jens Axboe
2017-01-26 19:01 ` Jens Axboe
2017-01-26 20:47 ` [dm-devel] " Bart Van Assche
2017-01-26 20:54 ` Jens Axboe
2017-01-26 20:54 ` [dm-devel] " Jens Axboe
2017-01-26 21:01 ` Bart Van Assche
2017-01-26 21:01 ` Bart Van Assche
2017-01-26 21:12 ` Jens Axboe
2017-01-26 21:12 ` [dm-devel] " Jens Axboe
2017-01-26 21:47 ` Bart Van Assche
2017-01-26 21:47 ` [dm-devel] " Bart Van Assche
2017-01-26 21:51 ` Jens Axboe
2017-01-26 21:51 ` [dm-devel] " Jens Axboe
2017-01-26 23:14 ` Bart Van Assche
2017-01-26 23:14 ` Bart Van Assche
2017-01-26 23:26 ` Jens Axboe
2017-01-26 23:26 ` Jens Axboe
2017-01-26 23:26 ` [dm-devel] " Jens Axboe
2017-01-26 23:47 ` Bart Van Assche
2017-01-26 23:47 ` [dm-devel] " Bart Van Assche
2017-01-26 23:50 ` Jens Axboe
2017-01-27 0:33 ` Jens Axboe
2017-01-27 0:33 ` [dm-devel] " Jens Axboe
2017-01-27 0:38 ` Bart Van Assche [this message]
2017-01-27 0:38 ` Bart Van Assche
2017-01-27 0:41 ` Jens Axboe
2017-01-27 1:15 ` Bart Van Assche
2017-01-27 1:15 ` [dm-devel] " Bart Van Assche
2017-01-27 1:22 ` Jens Axboe
2017-01-27 1:22 ` [dm-devel] " Jens Axboe
2017-01-27 6:40 ` Jens Axboe
2017-01-27 8:04 ` Jens Axboe
2017-01-27 8:04 ` [dm-devel] " Jens Axboe
2017-01-27 16:52 ` Bart Van Assche
2017-01-27 16:52 ` [dm-devel] " Bart Van Assche
2017-01-27 16:56 ` Jens Axboe
2017-01-27 16:56 ` [dm-devel] " Jens Axboe
2017-01-27 17:03 ` Bart Van Assche
2017-01-27 17:03 ` [dm-devel] " Bart Van Assche
2017-01-31 1:12 ` Bart Van Assche
2017-01-31 1:12 ` Bart Van Assche
2017-01-31 1:38 ` Jens Axboe
2017-01-31 1:38 ` Jens Axboe
2017-01-31 4:13 ` Jens Axboe
2017-01-31 4:13 ` [dm-devel] " Jens Axboe
2017-01-31 21:35 ` Bart Van Assche
2017-01-31 21:35 ` Bart Van Assche
2017-01-31 21:55 ` Bart Van Assche
2017-01-31 21:55 ` Bart Van Assche
2017-01-31 21:58 ` Jens Axboe
2017-02-01 1:01 ` Bart Van Assche
2017-02-01 6:38 ` Jens Axboe
2017-02-01 16:46 ` Bart Van Assche
2017-02-01 17:13 ` Jens Axboe
2017-02-01 17:28 ` Bart Van Assche
2017-02-01 19:21 ` Bart Van Assche
2017-02-01 22:01 ` Bart Van Assche
2017-02-02 17:27 ` Bart Van Assche
2017-02-02 18:33 ` Mike Snitzer
2017-02-02 18:43 ` Bart Van Assche
2017-02-02 19:13 ` Mike Snitzer
2017-02-02 19:46 ` Bart Van Assche
2017-02-02 21:04 ` Mike Snitzer
2017-02-02 21:10 ` Mike Snitzer
2017-02-03 0:20 ` Bart Van Assche
2017-02-03 0:42 ` Mike Snitzer
2017-02-02 22:38 ` Bart Van Assche
2017-01-27 17:02 ` [dm-devel] " Bart Van Assche
2017-01-27 17:02 ` Bart Van Assche
2017-01-27 16:11 ` Jens Axboe
2017-01-27 16:11 ` Jens Axboe
2017-01-27 16:17 ` Christoph Hellwig
2017-01-27 16:17 ` Christoph Hellwig
2017-01-27 16:21 ` Jens Axboe
2017-01-27 16:21 ` Jens Axboe
2017-01-27 16:23 ` Christoph Hellwig
2017-01-27 16:23 ` Christoph Hellwig
2017-01-27 16:27 ` Jens Axboe
2017-01-27 16:27 ` Jens Axboe
2017-01-27 16:34 ` Christoph Hellwig
2017-01-27 16:34 ` Christoph Hellwig
2017-01-27 16:38 ` Jens Axboe
2017-01-27 16:38 ` Jens Axboe
2017-01-27 16:42 ` Christoph Hellwig
2017-01-27 16:42 ` Christoph Hellwig
2017-01-27 16:58 ` Jens Axboe
2017-01-27 16:58 ` Jens Axboe
2017-01-27 21:27 ` Bart Van Assche
2017-01-27 21:27 ` Bart Van Assche
2017-01-28 8:29 ` hch
2017-01-30 6:58 ` Hannes Reinecke
2017-01-30 6:58 ` Hannes Reinecke
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