From: Can Guo <can.guo@oss.qualcomm.com>
To: "Peter Wang (王信友)" <peter.wang@mediatek.com>,
"beanhuo@micron.com" <beanhuo@micron.com>,
"mani@kernel.org" <mani@kernel.org>,
"avri.altman@wdc.com" <avri.altman@wdc.com>,
"bvanassche@acm.org" <bvanassche@acm.org>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"adrian.hunter@intel.com" <adrian.hunter@intel.com>,
"alim.akhtar@samsung.com" <alim.akhtar@samsung.com>,
"James.Bottomley@HansenPartnership.com"
<James.Bottomley@HansenPartnership.com>,
"quic_nguyenb@quicinc.com" <quic_nguyenb@quicinc.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 04/12] scsi: ufs: core: Add support for TX Equalization
Date: Thu, 19 Mar 2026 13:49:45 +0800 [thread overview]
Message-ID: <6e2f03ee-6cde-48ea-9f43-6b911117fe4b@oss.qualcomm.com> (raw)
In-Reply-To: <ead714be9dbe88ac66b3ce586498f7ffd734e328.camel@mediatek.com>
On 3/17/2026 9:10 PM, Peter Wang (王信友) wrote:
>
> On Tue, 2026-03-17 at 15:35 +0800, Can Guo wrote:
> > The main data struct which is costing memory is the TX EQTR record
> > arrays, I can optimize
> > in next very by dynamically allocating memory ONLY for the Gears
> > which
> > actually
> > need TX EQTR.
> >
> > Thanks,
> > Can Guo.
> > >
>
> Hi Can,
>
> It's not just Gear that needs to be considered, lane count does
> as well. Only allocate the Gear and lane numbers that actually
> require EQTR. Also, please optimize the structure, for variables
> that only need UINT8, don't use UINT32, since memory usage is four
> times greater.
Sure, for the lanes too. But I will still keep FOM records as u16,
because we
need to initialize it to a default value other than 0x0 to 0xFF such that we
can differentiate a real FOM value (unit 8, read from RX_FOM) from the
default one.
Thanks,
Can Guo.
>
> Thanks
> Peter
>
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next prev parent reply other threads:[~2026-03-19 5:49 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-08 15:13 [PATCH v3 00/12] scsi: ufs: Add TX Equalization support for UFS 5.0 Can Guo
2026-03-08 15:13 ` [PATCH v3 01/12] scsi: ufs: core: Introduce a new ufshcd vops negotiate_pwr_mode() Can Guo
2026-03-13 22:09 ` Bart Van Assche
2026-03-14 7:21 ` Can Guo
2026-03-08 15:13 ` [PATCH v3 02/12] scsi: ufs: core: Pass force_pmc to ufshcd_config_pwr_mode() as a parameter Can Guo
2026-03-08 15:14 ` [PATCH v3 03/12] scsi: ufs: core: Add UFS_HS_G6 and UFS_HS_GEAR_MAX to enum ufs_hs_gear_tag Can Guo
2026-03-08 15:14 ` [PATCH v3 04/12] scsi: ufs: core: Add support for TX Equalization Can Guo
2026-03-13 22:19 ` Bart Van Assche
2026-03-14 8:19 ` Can Guo
2026-03-14 9:33 ` Can Guo
2026-03-16 16:55 ` Bart Van Assche
2026-03-17 7:04 ` Can Guo
2026-03-17 6:49 ` Peter Wang (王信友)
2026-03-17 7:22 ` Can Guo
2026-03-17 7:35 ` Can Guo
2026-03-17 13:10 ` Peter Wang (王信友)
2026-03-19 5:49 ` Can Guo [this message]
2026-03-19 12:42 ` Peter Wang (王信友)
2026-03-21 2:30 ` Can Guo
2026-03-17 13:08 ` Peter Wang (王信友)
2026-03-19 5:42 ` Can Guo
2026-03-08 15:14 ` [PATCH v3 05/12] scsi: ufs: core: Add debugfs entries for TX Equalization params Can Guo
2026-03-13 22:21 ` Bart Van Assche
2026-03-08 15:14 ` [PATCH v3 06/12] scsi: ufs: core: Add helpers to pause and resume command processing Can Guo
2026-03-13 22:26 ` Bart Van Assche
2026-03-14 10:38 ` Can Guo
2026-03-16 17:12 ` Bart Van Assche
2026-03-16 18:07 ` Bart Van Assche
2026-03-08 15:14 ` [PATCH v3 07/12] scsi: ufs: core: Add support to refresh TX Equalization via debugfs Can Guo
2026-03-13 22:30 ` Bart Van Assche
2026-03-14 10:45 ` Can Guo
2026-03-16 17:14 ` Bart Van Assche
2026-03-17 13:05 ` Peter Wang (王信友)
2026-03-19 5:36 ` Can Guo
2026-03-08 15:14 ` [PATCH v3 08/12] scsi: ufs: ufs-qcom: Fixup PAM-4 TX L0_L1_L2_L3 adaptation pattern length Can Guo
2026-03-08 15:14 ` [PATCH v3 09/12] scsi: ufs: ufs-qcom: Implement vops tx_eqtr_notify() Can Guo
2026-03-08 15:14 ` [PATCH v3 10/12] scsi: ufs: ufs-qcom: Implement vops get_rx_fom() Can Guo
2026-03-08 15:14 ` [PATCH v3 11/12] scsi: ufs: ufs-qcom: Implement vops apply_tx_eqtr_settings() Can Guo
2026-03-08 15:14 ` [PATCH v3 12/12] scsi: ufs: ufs-qcom: Enable TX Equalization Can Guo
2026-03-13 21:56 ` [PATCH v3 00/12] scsi: ufs: Add TX Equalization support for UFS 5.0 Bart Van Assche
2026-03-14 10:48 ` Can Guo
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