Re: [PATCH v5 04/16] ufs: core: Defer adding host to scsi if mcq is supported

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To: Asutosh Das <quic_asutoshd@xxxxxxxxxxx>, quic_cang@xxxxxxxxxxx, martin.petersen@xxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v5 04/16] ufs: core: Defer adding host to scsi if mcq is supported
From: Bart Van Assche <bvanassche@xxxxxxx>
Date: Fri, 25 Nov 2022 16:28:30 -0800
Cc: quic_nguyenb@xxxxxxxxxxx, quic_xiaosenh@xxxxxxxxxxx, stanley.chu@xxxxxxxxxxxx, eddie.huang@xxxxxxxxxxxx, daejun7.park@xxxxxxxxxxx, avri.altman@xxxxxxx, mani@xxxxxxxxxx, beanhuo@xxxxxxxxxx, linux-arm-msm@xxxxxxxxxxxxxxx, Alim Akhtar <alim.akhtar@xxxxxxxxxxx>, "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx>, Jinyoung Choi <j-young.choi@xxxxxxxxxxx>, open list <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <b75e35e1c23b428a6c55396c0fcda5ea22b4e33e.1669176158.git.quic_asutoshd@quicinc.com>
References: <cover.1669176158.git.quic_asutoshd@quicinc.com> <b75e35e1c23b428a6c55396c0fcda5ea22b4e33e.1669176158.git.quic_asutoshd@quicinc.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0

On 11/22/22 20:10, Asutosh Das wrote:

If MCQ support is present, enabling it after MCQ support
has been configured would require reallocating tags and memory.
It would also free up the already allocated memory in
Single Doorbell Mode. So defer invoking scsi_add_host() until
MCQ is configured.


Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>

References:
- [PATCH v5 00/16] Add Multi Circular Queue Support
  - From: Asutosh Das
- [PATCH v5 04/16] ufs: core: Defer adding host to scsi if mcq is supported
  - From: Asutosh Das

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