From: Bean Huo <beanhuo@iokpp.de>
To: Can Guo <can.guo@oss.qualcomm.com>,
avri.altman@wdc.com, bvanassche@acm.org, beanhuo@micron.com,
peter.wang@mediatek.com, martin.petersen@oracle.com,
mani@kernel.org
Cc: linux-scsi@vger.kernel.org, Alim Akhtar <alim.akhtar@samsung.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
vamshi gajjela <vamshigajjela@google.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Adrian Hunter <adrian.hunter@intel.com>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 2/2] scsi: ufs: core: Add support to retrieve and store TX Equalization settings
Date: Mon, 27 Apr 2026 10:37:31 +0200 [thread overview]
Message-ID: <b1e3a3e37b7a5a4e26d429b94b2d3a0a6ea00220.camel@iokpp.de> (raw)
In-Reply-To: <20260424151420.111675-3-can.guo@oss.qualcomm.com>
On Fri, 2026-04-24 at 08:14 -0700, Can Guo wrote:
> Add support for UFS v5.0 JEDEC attributes qTxEQGnSettings and
> wTxEQGnSettingsExt to enable persistent storage and retrieval of
> optimal TX Equalization settings.
>
> This provides a fast-path for TX Equalization by reusing previously
> stored optimal settings, avoiding TX Equalization Training (EQTR)
> procedures during subsequent Power Mode changes.
>
> When no valid TX Equalization settings are found, fall back to full TX
> EQTR procedures and optionally save the results for future use.
>
> The validity of one set of TX Equalization settings is indicated by
> Bit[15] in wTxEQGnSettingsExt.
Reviewed-by: Bean Huo <beanhuo@micron.com>
next prev parent reply other threads:[~2026-04-27 8:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-24 15:14 [PATCH v2 0/2] scsi: ufs: Add persistent TX Equalization settings support Can Guo
2026-04-24 15:14 ` [PATCH v2 1/2] scsi: ufs: core: Introduce function ufshcd_query_attr_qword() Can Guo
2026-04-27 8:36 ` Bean Huo
2026-04-24 15:14 ` [PATCH v2 2/2] scsi: ufs: core: Add support to retrieve and store TX Equalization settings Can Guo
2026-04-27 7:02 ` Peter Wang (王信友)
2026-04-27 8:37 ` Bean Huo [this message]
2026-04-27 16:03 ` [PATCH v2 0/2] scsi: ufs: Add persistent TX Equalization settings support Bart Van Assche
2026-05-08 9:08 ` Brian Kao
2026-05-11 9:21 ` Can Guo
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