From: Bart Van Assche <Bart.VanAssche@sandisk.com> To: "hch@lst.de" <hch@lst.de>, "axboe@fb.com" <axboe@fb.com> Cc: "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>, "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>, "snitzer@redhat.com" <snitzer@redhat.com>, "linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>, "dm-devel@redhat.com" <dm-devel@redhat.com>, "j-nomura@ce.jp.nec.com" <j-nomura@ce.jp.nec.com> Subject: Re: split scsi passthrough fields out of struct request V2 Date: Fri, 27 Jan 2017 01:15:58 +0000 [thread overview] Message-ID: <1485479738.2540.30.camel@sandisk.com> (raw) In-Reply-To: <2d971693-b79d-c1b9-fb2a-f5dd04128c68@fb.com> On Thu, 2017-01-26 at 17:41 -0700, Jens Axboe wrote: > On 01/26/2017 05:38 PM, Bart Van Assche wrote: > > 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. > > Please don't run that, run for-4.11/block and merge it to master. > Same behavior? I have not yet had the chance to run the srp-test software against that kernel. But I already see that booting takes more than ten times longer than usual. Note: as far as I know the dm-mpath driver is not involved in the boot process of my test system. > > 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 > > I can't run that. Any chance of a test case that doesn't require IB? It is possible to run that test on top of the SoftRoCE driver. I will first check myself whether the latest version of the SoftRoCE driver is stable enough to run srp-test on top of it (see also https://github.com/dledford/linux/commits/k.o/for-4.11). 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 01:15:58 +0000 [thread overview] Message-ID: <1485479738.2540.30.camel@sandisk.com> (raw) In-Reply-To: <2d971693-b79d-c1b9-fb2a-f5dd04128c68@fb.com> On Thu, 2017-01-26 at 17:41 -0700, Jens Axboe wrote: > On 01/26/2017 05:38 PM, Bart Van Assche wrote: > > 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. >=20 > Please don't run that, run for-4.11/block and merge it to master. > Same behavior? I have not yet had the chance to run the srp-test software against that kernel. But I already see that booting takes more than ten times longer than usual. Note: as far as I know the dm-mpath driver is not involved in the boot process of my test system. > > 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 th= e > > 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 >=20 > I can't run that. Any chance of a test case that doesn't require IB? It is possible to run that test on top of the SoftRoCE driver. I will first check myself whether the latest version of the SoftRoCE driver is stable enough to run srp-test on top of it (see also https://github.com/dledford/linux/commits/k.o/for-4.11). Bart.=
next prev parent reply other threads:[~2017-01-27 1:15 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 2017-01-27 0:38 ` Bart Van Assche 2017-01-27 0:41 ` Jens Axboe 2017-01-27 1:15 ` Bart Van Assche [this message] 2017-01-27 1:15 ` 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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