From: Daejun Park <daejun7.park@samsung.com>
To: Avri Altman <Avri.Altman@wdc.com>,
Daejun Park <daejun7.park@samsung.com>,
Greg KH <gregkh@linuxfoundation.org>,
"jejb@linux.ibm.com" <jejb@linux.ibm.com>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
"asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
"stanley.chu@mediatek.com" <stanley.chu@mediatek.com>,
"cang@codeaurora.org" <cang@codeaurora.org>,
"bvanassche@acm.org" <bvanassche@acm.org>,
"huobean@gmail.com" <huobean@gmail.com>,
ALIM AKHTAR <alim.akhtar@samsung.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
JinHwan Park <jh.i.park@samsung.com>,
Javier Gonzalez <javier.gonz@samsung.com>,
SEUNGUK SHIN <seunguk.shin@samsung.com>,
Sung-Jun Park <sungjun07.park@samsung.com>,
yongmyung lee <ymhungry.lee@samsung.com>,
Jinyoung CHOI <j-young.choi@samsung.com>,
BoRam Shin <boram.shin@samsung.com>
Subject: RE: RE: [PATCH v21 2/4] scsi: ufs: L2P map management for HPB read
Date: Mon, 22 Feb 2021 17:16:58 +0900 [thread overview]
Message-ID: <20210222081658epcms2p4dcc6bfa0da7b6222cc4262a36374d3ad@epcms2p4> (raw)
In-Reply-To: <DM6PR04MB6575F5244F17B022E6E78DC7FC829@DM6PR04MB6575.namprd04.prod.outlook.com>
> +static bool ufshpb_is_hpb_rsp_valid(struct ufs_hba *hba,
> > + struct ufshcd_lrb *lrbp,
> > + struct utp_hpb_rsp *rsp_field)
> > +{
> > + if (be16_to_cpu(rsp_field->sense_data_len) != DEV_SENSE_SEG_LEN ||
> > + rsp_field->desc_type != DEV_DES_TYPE ||
> > + rsp_field->additional_len != DEV_ADDITIONAL_LEN ||
> > + rsp_field->active_rgn_cnt > MAX_ACTIVE_NUM ||
> > + rsp_field->inactive_rgn_cnt > MAX_INACTIVE_NUM ||
> > + (rsp_field->hpb_op == HPB_RSP_REQ_REGION_UPDATE &&
> > + !rsp_field->active_rgn_cnt && !rsp_field->inactive_rgn_cnt))
> > + return false;
> > +
> > + /* we cannot access HPB from other LU */
> > + if (lrbp->lun != rsp_field->lun)
> > + return false;
> Why not?
> Clearly this against the spec which allows to attach hpb sense crossed luns
>
> > +
> > + if (!ufshpb_is_general_lun(lrbp->lun)) {
> > + dev_warn(hba->dev, "ufshpb: lun(%d) not supported\n",
> > + lrbp->lun);
> > + return false;
> > + }
> > +
> > + return true;
> > +}
>
>
>
>
> > +void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
> > +{
> > + struct ufshpb_lu *hpb = ufshpb_get_hpb_data(lrbp->cmd->device);
> > + struct utp_hpb_rsp *rsp_field;
> > + int data_seg_len;
> > +
> > + if (!hpb)
> > + return;
> Ditto
I fixed the code to support the crossed-hint.
Thanks,
Daejun
next prev parent reply other threads:[~2021-02-22 8:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210218090627epcms2p639c216ccebed773120121b1d53641d94@epcms2p6>
2021-02-18 9:06 ` [PATCH v21 0/4] scsi: ufs: Add Host Performance Booster Support Daejun Park
[not found] ` <CGME20210218090627epcms2p639c216ccebed773120121b1d53641d94@epcms2p8>
2021-02-18 9:07 ` [PATCH v21 1/4] scsi: ufs: Introduce HPB feature Daejun Park
2021-02-18 9:07 ` [PATCH v21 2/4] scsi: ufs: L2P map management for HPB read Daejun Park
2021-02-21 11:54 ` Avri Altman
2021-02-21 12:06 ` Avri Altman
[not found] ` <CGME20210218090627epcms2p639c216ccebed773120121b1d53641d94@epcms2p4>
2021-02-22 8:15 ` Daejun Park
2021-02-22 8:16 ` Daejun Park [this message]
2021-02-22 8:21 ` RE: [PATCH v21 4/4] scsi: ufs: Add HPB 2.0 support Daejun Park
2021-02-18 9:08 ` Daejun Park
2021-02-20 14:33 ` Avri Altman
[not found] ` <CGME20210218090627epcms2p639c216ccebed773120121b1d53641d94@epcms2p2>
2021-02-18 9:08 ` [PATCH v21 3/4] scsi: ufs: Prepare HPB read for cached sub-region Daejun Park
2021-02-21 7:24 ` Avri Altman
[not found] ` <CGME20210218090627epcms2p639c216ccebed773120121b1d53641d94@epcms2p7>
2021-02-22 8:20 ` Daejun Park
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