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From: "Peter Wang (王信友)" <peter.wang@mediatek.com>
To: "beanhuo@micron.com" <beanhuo@micron.com>,
	"mani@kernel.org" <mani@kernel.org>,
	"can.guo@oss.qualcomm.com" <can.guo@oss.qualcomm.com>,
	"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: Tue, 17 Mar 2026 13:10:29 +0000	[thread overview]
Message-ID: <ead714be9dbe88ac66b3ce586498f7ffd734e328.camel@mediatek.com> (raw)
In-Reply-To: <fb56d5f1-2b53-4627-ab7a-03db13cd76fd@oss.qualcomm.com>

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.

Thanks
Peter

  reply	other threads:[~2026-03-17 13:10 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) [this message]
2026-03-19  5:49           ` Can Guo
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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