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From: Bart Van Assche <bvanassche@acm.org>
To: Avri Altman <avri.altman@wdc.com>,
	"James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: alim.akhtar@samsung.com, asutoshd@codeaurora.org,
	Zang Leigang <zangleigang@hisilicon.com>,
	Avi Shchislowski <avi.shchislowski@wdc.com>,
	Bean Huo <beanhuo@micron.com>,
	cang@codeaurora.org, stanley.chu@mediatek.com,
	MOHAMMED RAFIQ KAMAL BASHA <md.rafiq@samsung.com>,
	Sang-yoon Oh <sangyoon.oh@samsung.com>,
	yongmyung lee <ymhungry.lee@samsung.com>,
	Jinyoung CHOI <j-young.choi@samsung.com>
Subject: Re: [RFC PATCH 04/13] scsi: ufs: ufshpb: Init part II - Attach scsi device
Date: Fri, 15 May 2020 18:52:00 -0700	[thread overview]
Message-ID: <52b5a1c6-38fd-7231-f6c9-b560c3ca9372@acm.org> (raw)
In-Reply-To: <1589538614-24048-5-git-send-email-avri.altman@wdc.com>

On 2020-05-15 03:30, Avri Altman wrote:
> @@ -4628,6 +4628,9 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev)
>  
>  	ufshcd_get_lu_power_on_wp_status(hba, sdev);
>  
> +	if (ufshcd_is_hpb_supported(hba))
> +		ufshpb_attach_sdev(hba, sdev);
> +
>  	return 0;
>  }

This approach is unusual because:
- Direct calls from the ufshcd module into the ufshpb module make it
  impossible to unload the latter kernel module.
- No other SCSI LLD calls directly into a device handler.

Thanks,

Bart.

  reply	other threads:[~2020-05-16  1:52 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 10:30 [RFC PATCH 00/13] scsi: ufs: Add HPB Support Avri Altman
2020-05-15 10:30 ` [RFC PATCH 01/13] scsi: ufs: Add HPB parameters Avri Altman
2020-05-15 10:30 ` [RFC PATCH 02/13] scsi: ufshpb: Init part I - Read HPB config Avri Altman
2020-05-15 15:33   ` Randy Dunlap
2020-05-16  1:46   ` Bart Van Assche
2020-05-16  1:57   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 03/13] scsi: scsi_dh: Introduce scsi_dh_ufshpb Avri Altman
2020-05-16  1:48   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 04/13] scsi: ufs: ufshpb: Init part II - Attach scsi device Avri Altman
2020-05-16  1:52   ` Bart Van Assche [this message]
2020-05-15 10:30 ` [RFC PATCH 05/13] scsi: ufs: ufshpb: Disable HPB if no HPB-enabled luns Avri Altman
2020-05-16  2:02   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 06/13] scsi: scsi_dh: ufshpb: Prepare for L2P cache management Avri Altman
2020-05-16  2:13   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 07/13] scsi: scsi_dh: ufshpb: Add ufshpb state machine Avri Altman
2020-05-16  2:44   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 08/13] scsi: dh: ufshpb: Activate pinned regions Avri Altman
2020-05-15 10:30 ` [RFC PATCH 09/13] scsi: ufshpb: Add response API Avri Altman
2020-05-16  3:06   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 10/13] scsi: dh: ufshpb: Add ufshpb_set_params Avri Altman
2020-05-15 10:30 ` [RFC PATCH 11/13] scsi: Allow device handler set their own CDB Avri Altman
2020-05-16  3:19   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 12/13] scsi: dh: ufshpb: Add prep_fn handler Avri Altman
2020-05-16  3:40   ` Bart Van Assche
2020-05-15 10:30 ` [RFC PATCH 13/13] scsi: scsi_dh: ufshpb: Add "Cold" subregions timer Avri Altman
2020-05-16  3:50 ` [RFC PATCH 00/13] scsi: ufs: Add HPB Support Bart Van Assche
2020-05-16  9:14   ` Avri Altman
2020-05-16 17:14     ` Bart Van Assche
     [not found]     ` <CGME20200516171420epcas2p108c570904c5117c3654d71e0a2842faa@epcms2p7>
2020-05-19 22:31       ` Another approach of UFSHPB yongmyung lee
2020-05-20 17:55         ` Christoph Hellwig
2020-05-20 21:19           ` Bart Van Assche
2020-05-22 16:35             ` Bart Van Assche
2020-05-22 16:49         ` Bart Van Assche
     [not found]         ` <CGME20200516171420epcas2p108c570904c5117c3654d71e0a2842faa@epcms2p4>
2020-05-25  5:40           ` Daejun Park
2020-05-25 14:56             ` Bart Van Assche
2020-05-26  6:15               ` Avri Altman
2020-05-26 17:03                 ` Bart Van Assche
     [not found]                 ` <CGME20200516171420epcas2p108c570904c5117c3654d71e0a2842faa@epcms2p3>
2020-05-27  9:11                   ` Daejun Park
2020-05-27 11:46                     ` Bean Huo

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