From: Christoph Hellwig <hch@lst.de>
To: Hannes Reinecke <hare@suse.de>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Christoph Hellwig <hch@lst.de>,
James Bottomley <james.bottomley@hansenpartnership.com>,
John Garry <john.garry@huawei.com>,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH 05/18] scsi: use real inquiry data when initialising devices
Date: Tue, 4 May 2021 11:55:51 +0200 [thread overview]
Message-ID: <20210504095551.GD25986@lst.de> (raw)
In-Reply-To: <20210503150333.130310-6-hare@suse.de>
On Mon, May 03, 2021 at 05:03:20PM +0200, Hannes Reinecke wrote:
> Use dummy inquiry data when initialising devices and not just
> some 'nullnullnull' string.
Why?
> +/*
> + * Dummy inquiry for virtual LUNs:
> + *
> + * standard INQUIRY: [qualifier indicates no connected LU]
> + * PQual=1 Device_type=31 RMB=0 LU_CONG=0 version=0x05 [SPC-3]
> + * [AERC=0] [TrmTsk=0] NormACA=0 HiSUP=0 Resp_data_format=2
> + * SCCS=0 ACC=0 TPGS=0 3PC=0 Protect=0 [BQue=0]
> + * EncServ=0 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0
> + * [RelAdr=0] WBus16=0 Sync=0 [Linked=0] [TranDis=0] CmdQue=0
> + * length=36 (0x24) Peripheral device type: no physical device on this lu
> + * Vendor identification: LINUX
> + * Product identification: VIRTUALLUN
> + * Product revision level: 1.0
> + */
You don't juse set this up for virtual Luns, but as a default for all
scsi_devices before calling inquirty. I'd much helper with a helper
to fill out fake inquiry data rather than having seemingly valid data
for all devices before inquirty is called or if it fails.
next prev parent reply other threads:[~2021-05-04 9:55 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-03 15:03 [PATCHv8 00/18] scsi: enabled reserved commands for LLDDs Hannes Reinecke
2021-05-03 15:03 ` [PATCH 01/18] fnic: kill 'exclude_id' argument to fnic_cleanup_io() Hannes Reinecke
2021-05-04 2:12 ` Bart Van Assche
2021-05-04 9:49 ` Christoph Hellwig
2021-05-03 15:03 ` [PATCH 02/18] fnic: use scsi_host_busy_iter() to traverse commands Hannes Reinecke
2021-05-04 9:50 ` Christoph Hellwig
2021-05-04 12:53 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 03/18] scsi: add scsi_{get,put}_internal_cmd() helper Hannes Reinecke
2021-05-04 2:21 ` Bart Van Assche
2021-05-04 6:12 ` Hannes Reinecke
2021-06-23 10:57 ` John Garry
2021-06-23 13:48 ` Hannes Reinecke
2021-06-24 9:55 ` John Garry
2021-05-04 9:53 ` Christoph Hellwig
2021-05-04 12:54 ` Hannes Reinecke
2021-06-23 16:09 ` Bart Van Assche
2021-05-03 15:03 ` [PATCH 04/18] fnic: use internal commands Hannes Reinecke
2021-05-04 2:25 ` Bart Van Assche
2021-05-04 6:12 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 05/18] scsi: use real inquiry data when initialising devices Hannes Reinecke
2021-05-04 2:28 ` Bart Van Assche
2021-05-04 9:55 ` Christoph Hellwig [this message]
2021-05-04 12:57 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 06/18] scsi: Use dummy inquiry data for the host device Hannes Reinecke
2021-05-04 2:52 ` Bart Van Assche
2021-05-04 6:14 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 07/18] scsi: revamp host device handling Hannes Reinecke
2021-05-04 3:06 ` Bart Van Assche
2021-05-04 6:15 ` Hannes Reinecke
2021-05-04 9:59 ` Christoph Hellwig
2021-05-04 13:10 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 08/18] snic: use reserved commands Hannes Reinecke
2021-05-04 3:12 ` Bart Van Assche
2021-05-04 6:16 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 09/18] snic: use tagset iter for traversing commands Hannes Reinecke
2021-05-04 9:59 ` Christoph Hellwig
2021-05-03 15:03 ` [PATCH 10/18] scsi: implement reserved command handling Hannes Reinecke
2021-05-04 3:20 ` Bart Van Assche
2021-05-04 6:17 ` Hannes Reinecke
2021-05-04 10:55 ` John Garry
2021-05-04 13:12 ` Hannes Reinecke
2021-05-04 16:59 ` Bart Van Assche
2021-05-04 18:09 ` Hannes Reinecke
2021-05-05 0:45 ` Bart Van Assche
2021-05-05 5:56 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 11/18] hpsa: move hpsa_hba_inquiry after scsi_add_host() Hannes Reinecke
2021-05-03 15:03 ` [PATCH 12/18] hpsa: use reserved commands Hannes Reinecke
2021-05-03 15:03 ` [PATCH 13/18] hpsa: use scsi_host_busy_iter() to traverse outstanding commands Hannes Reinecke
2021-05-03 15:03 ` [PATCH 14/18] hpsa: drop refcount field from CommandList Hannes Reinecke
2021-05-03 15:03 ` [PATCH 15/18] aacraid: move scsi_add_host() Hannes Reinecke
2021-05-03 15:03 ` [PATCH 16/18] aacraid: store target id in host_scribble Hannes Reinecke
2021-05-04 3:22 ` Bart Van Assche
2021-05-04 6:18 ` Hannes Reinecke
2021-05-03 15:03 ` [PATCH 17/18] aacraid: use scsi_get_internal_cmd() Hannes Reinecke
2021-05-03 15:03 ` [PATCH 18/18] aacraid: use scsi_host_busy_iter() to traverse outstanding commands Hannes Reinecke
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