linux-kernel - RE: [PATCH v4 02/16] ufs: core: Probe for ext

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Date:   Thu, 10 Nov 2022 10:47:06 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Asutosh Das <quic_asutoshd@...cinc.com>,
        "quic_cang@...cinc.com" <quic_cang@...cinc.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
CC:     "quic_nguyenb@...cinc.com" <quic_nguyenb@...cinc.com>,
        "quic_xiaosenh@...cinc.com" <quic_xiaosenh@...cinc.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "eddie.huang@...iatek.com" <eddie.huang@...iatek.com>,
        "daejun7.park@...sung.com" <daejun7.park@...sung.com>,
        "bvanassche@....org" <bvanassche@....org>,
        "mani@...nel.org" <mani@...nel.org>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Jinyoung Choi <j-young.choi@...sung.com>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v4 02/16] ufs: core: Probe for ext_iid support

> 
> Task Tag is limited to 8 bits and this restricts the number of active IOs to 255.
> In Multi-circular queue mode, this may not be enough.
> The specification provides EXT_IID which can be used to increase the number of
> IOs if the UFS device and UFSHC support it.
> This patch adds support to probe for ext_iid support in ufs device and UFSHC.
> 
> Co-developed-by: Can Guo <quic_cang@...cinc.com>
> Signed-off-by: Can Guo <quic_cang@...cinc.com>
> Signed-off-by: Asutosh Das <quic_asutoshd@...cinc.com>
Reviewed-by: Avri Altman <avri.altman@....com>