From: Christoph Hellwig <hch@lst.de>
To: Hannes Reinecke <hare@suse.de>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
James Bottomley <james.bottomley@hansenpartnership.com>,
Christoph Hellwig <hch@lst.de>,
Bart von Assche <bart.vanassche@sandisk.com>,
Ewan Milne <emilne@redhat.com>,
linux-scsi@vger.kernel.org
Subject: Re: [PATCHv2 14/22] scsi_dh_alua: Allow workqueue to run synchronously
Date: Tue, 12 Jan 2016 18:16:55 +0100 [thread overview]
Message-ID: <20160112171655.GF23947@lst.de> (raw)
In-Reply-To: <1452613258-94084-15-git-send-email-hare@suse.de>
On Tue, Jan 12, 2016 at 04:40:50PM +0100, Hannes Reinecke wrote:
> Some arrays may only capable of handling one STPG at a time,
> so this patch adds a singlethreaded workqueue for STPGs to be
> submitted synchronously.
> Synchronous STPG can be activated by setting the second module
> option to '1'. The corresponding entry in multipath.conf would be:
> hardware_handler "3 alua 1 1"
No new hardware_handle options please. The SCSI way to handle hardware
tweaks is by a devlist entry. The devlist entries ensure setups
work out of the box, but if needed still can be updated dynamically.
next prev parent reply other threads:[~2016-01-12 17:16 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-12 15:40 [PATCHv2 00/22] ALUA device handler update, part II Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 01/22] scsi_dh_alua: Pass buffer as function argument Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 02/22] scsi_dh_alua: separate out alua_stpg() Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 03/22] scsi_dh_alua: Make stpg synchronous Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 04/22] scsi_dh_alua: call alua_rtpg() if stpg fails Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 05/22] scsi_dh_alua: switch to scsi_execute_req_flags() Hannes Reinecke
2016-01-13 5:48 ` kbuild test robot
2016-01-12 15:40 ` [PATCHv2 06/22] scsi_dh_alua: allocate RTPG buffer separately Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 07/22] scsi_dh_alua: Use separate alua_port_group structure Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 08/22] scsi_dh_alua: use unique device id Hannes Reinecke
2016-01-12 17:10 ` Christoph Hellwig
2016-01-12 15:40 ` [PATCHv2 09/22] scsi_dh_alua: simplify alua_initialize() Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 10/22] revert commit a8e5a2d593cb ("[SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is transitioning") Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 11/22] scsi_dh_alua: move optimize_stpg evaluation Hannes Reinecke
2016-01-12 17:11 ` Christoph Hellwig
2016-01-12 15:40 ` [PATCHv2 12/22] scsi_dh_alua: remove 'rel_port' from alua_dh_data structure Hannes Reinecke
2016-01-12 17:11 ` Christoph Hellwig
2016-01-12 15:40 ` [PATCHv2 13/22] scsi_dh_alua: Use workqueue for RTPG Hannes Reinecke
2016-01-12 16:43 ` kbuild test robot
2016-01-12 17:14 ` Christoph Hellwig
2016-01-13 7:02 ` Hannes Reinecke
2016-01-13 7:13 ` Hannes Reinecke
2016-01-13 10:05 ` Christoph Hellwig
2016-01-13 10:04 ` Christoph Hellwig
2016-01-13 10:27 ` Hannes Reinecke
2016-01-13 6:10 ` kbuild test robot
2016-01-12 15:40 ` [PATCHv2 14/22] scsi_dh_alua: Allow workqueue to run synchronously Hannes Reinecke
2016-01-12 17:16 ` Christoph Hellwig [this message]
2016-01-12 15:40 ` [PATCHv2 15/22] scsi_dh_alua: Recheck state on unit attention Hannes Reinecke
2016-01-12 17:17 ` Christoph Hellwig
2016-01-12 15:40 ` [PATCHv2 16/22] scsi_dh_alua: update all port states Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 17/22] scsi_dh_alua: Send TEST UNIT READY to poll for transitioning Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 18/22] scsi_dh: add 'rescan' callback Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 19/22] scsi: Add 'access_state' attribute Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 20/22] scsi_dh_alua: use common definitions for ALUA state Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 21/22] scsi_dh_alua: update 'access_state' field Hannes Reinecke
2016-01-12 15:40 ` [PATCHv2 22/22] scsi_dh_alua: Update version to 2.0 Hannes Reinecke
2016-01-12 17:09 ` [PATCHv2 00/22] ALUA device handler update, part II Christoph Hellwig
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