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Mon, 26 Apr 2021 02:48:43 +0000 (GMT) Received: from epsmges2p3.samsung.com (unknown [182.195.40.188]) by epsnrtp3.localdomain (Postfix) with ESMTP id 4FT8V10s8Wz4x9Q0; Mon, 26 Apr 2021 02:48:41 +0000 (GMT) X-AuditID: b6c32a47-f61ff700000024d9-80-60862a0869bb Received: from epcas2p4.samsung.com ( [182.195.41.56]) by epsmges2p3.samsung.com (Symantec Messaging Gateway) with SMTP id FB.EE.09433.80A26806; Mon, 26 Apr 2021 11:48:40 +0900 (KST) Mime-Version: 1.0 Subject: RE: Re: [PATCH v32 0/4] scsi: ufs: Add Host Performance Booster Support Reply-To: daejun7.park@samsung.com Sender: Daejun Park From: Daejun Park To: Can Guo , Daejun Park CC: Greg KH , "avri.altman@wdc.com" , "jejb@linux.ibm.com" , "martin.petersen@oracle.com" , "asutoshd@codeaurora.org" , "stanley.chu@mediatek.com" , "bvanassche@acm.org" , "huobean@gmail.com" , ALIM AKHTAR , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , JinHwan Park , Javier Gonzalez , Sung-Jun Park , Jinyoung CHOI , Dukhyun Kwon , Keoseong Park , Jaemyung Lee , Jieon Seol X-Priority: 3 X-Content-Kind-Code: NORMAL In-Reply-To: X-CPGS-Detection: blocking_info_exchange X-Drm-Type: N,general X-Msg-Generator: Mail X-Msg-Type: PERSONAL X-Reply-Demand: N Message-ID: <20210426024840epcms2p7fa68f5abe64b031bbf67d0f69d88b7b5@epcms2p7> Date: Mon, 26 Apr 2021 11:48:40 +0900 X-CMS-MailID: 20210426024840epcms2p7fa68f5abe64b031bbf67d0f69d88b7b5 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: AUTO_CONFIDENTIAL X-CPGSPASS: Y X-CPGSPASS: Y CMS-TYPE: 102P X-Brightmail-Tracker: H4sIAAAAAAAAA12Te0xTVxzHc+693BaSkguCHsABu2xGcJSWUXYEykwgswzcyJ6Ki3CFSyHr K71lwRmR+ABEARc2xAYRWHjIq+CE1hImryEykGwIEybKMoiYiDLZzDpHN/pgmv33yTe/1/f3 O4ePe94nffnZKh2rVTEKmnQjugeDUSg/pCBNtPwwGs1Xd5Oot2CEhx5YpkhUsWLB0RNDgwt6 MBCMzP39JGqe/xgd/9pAoqrxfAyVlHWR6Jv+Dhz9emeVh+pud2OozFpIoO5VD3T9xiOAJs1V JDr9k4lEjdetGKrvmgHo1LlWYtdm2eStRNlkaQkmu6qf48nO1vUB2bULrTzZiRvXCNlvi7OE rPRKM5CtXvaXFfadxpLdUhQxWSyTwWoDWVW6OiNbJZfSie+nxqVKIkXiUPFO9AYdqGKUrJSO T0oOfStbsW6TDvyMUeSsS8kMx9FhsTFadY6ODcxSczopzWoyFBqxWCPkGCWXo5IL09XKKLFI FC5Zj0xTZF0obwOaedfcofNh+eAJWQxc+ZCKgMODA6AYuPE9KROAX5a28IoBny+gPOCaaZMt ZhP1Hvy7v42wsSdFQ8MPep5DF8LZX1qBjUnqNXhu5J5d96IS4B/lLS62mji1RsLvR5pcHM0E sLJwkXCwHzQ2dtmTXalYqL9Yhjv07fDPhhIne8OZlmXeBj8evggc7AVP3h13xnjAeUuPU/eB wz0rmIOPwq47f9mNQeoMgINXZ51DhMHpok77EAJqD6xeGrVvgqBehWeKDc5C8fBYY7ddx6kA aFyuwm1LwalgaDCH2RBSQXBoltiwld/5jPd/xil3WDS49p9uql5wjrYNtlsM2FkQpH++af0L vfTPe9UAvBlsZjWcUs5y4ZrXX7ztZWB/8SG7TaByeUU4ADA+GACQj9NeAtJ8Ms1TkMEc+pzV qlO1OQqWGwCSdZdf4L7e6er1L6PSpYol4ZGRop0SJIkMR/QWgYXNS/Ok5IyO/ZRlNax2Iw/j u/rmYzsE9yp+Ptj+He9W/s1YpYgQavLmJm5/9WbBO++6N50CSVR6dPylrpfJHVzRzam+JUPa 6IFD+440l4W8bVVu3f5jZ2bIQkTHw28bjB0f5QaFHZvp8IF7k4X+/a2l5y2KCvczd1Ni8vwO 90pivJ7WpT8OuKLDxoqltfWKYe/6iIl/2uUHMutf+r0zYNrHGr2U0Ly62NkREyvf1mPcorS2 JU3s1xmfnZiYOl7C7KNKLaPagsQ4+Vazr6nq/nRZps/Yh65B1tqj0uhPmLldubyUp1hDlF9t 3N4mo8W8J2U2J+mVRws1HxypKS/xlx4e0uq8xhJ6x91GyVjBAplXmX2wPOrSfprgshhxCK7l mH8BqLsPN3oEAAA= DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210331011526epcms2p37684869a9781d1eb45bfcbfe9babd217 References: <20210331011526epcms2p37684869a9781d1eb45bfcbfe9babd217@epcms2p3> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Can Guo, >> >> HPB is shown to have a performance improvement of 58 - 67% for random >> read >> workload. [1] >> >> [1]: >> https://www.usenix.org/conference/hotstorage17/program/presentation/jeong >> >> Daejun Park (4): >> scsi: ufs: Introduce HPB feature >> scsi: ufs: L2P map management for HPB read >> scsi: ufs: Prepare HPB read for cached sub-region >> scsi: ufs: Add HPB 2.0 support >> >> Documentation/ABI/testing/sysfs-driver-ufs | 162 ++ >> drivers/scsi/ufs/Kconfig | 9 + >> drivers/scsi/ufs/Makefile | 1 + >> drivers/scsi/ufs/ufs-sysfs.c | 22 + >> drivers/scsi/ufs/ufs.h | 54 +- >> drivers/scsi/ufs/ufshcd.c | 74 +- >> drivers/scsi/ufs/ufshcd.h | 29 + >> drivers/scsi/ufs/ufshpb.c | 2387 ++++++++++++++++++++ >> drivers/scsi/ufs/ufshpb.h | 277 +++ >> 9 files changed, 3013 insertions(+), 2 deletions(-) >> create mode 100644 drivers/scsi/ufs/ufshpb.c >> create mode 100644 drivers/scsi/ufs/ufshpb.h > >To the entire series: > >Tested-by: Can Guo Thanks for testing the patch series. :) Daejun