Message ID | 20200528011658.71590-3-alim.akhtar@samsung.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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20200528013228epcas5p4641c271e319aaefc78d7bbd22b23c30f~TDSV_NUZl2137121371epcas5p4e; Thu, 28 May 2020 01:32:28 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20200528013228epsmtrp1f07aee0488fcd41cd71921d3645e1825~TDSV81IwD0638506385epsmtrp1i; Thu, 28 May 2020 01:32:28 +0000 (GMT) X-AuditID: b6c32a49-a29ff700000024fb-16-5ecf14ac61e3 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id CB.E7.08382.BA41FCE5; Thu, 28 May 2020 10:32:27 +0900 (KST) Received: from Jaguar.sa.corp.samsungelectronics.net (unknown [107.108.73.139]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20200528013226epsmtip1781cc4df5f4a1a48d05ee63fe450e2b8~TDSUIVqMU1669416694epsmtip1k; Thu, 28 May 2020 01:32:25 +0000 (GMT) From: Alim Akhtar <alim.akhtar@samsung.com> To: robh@kernel.org Subject: [PATCH v10 02/10] scsi: ufs: add quirk to disallow reset of interrupt 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[v10,01/10] scsi: ufs: add quirk to fix mishandling utrlclr/utmrlclr
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diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 3655b88fc862..0e9704da58bd 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4884,7 +4884,8 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba) * false interrupt if device completes another request after resetting * aggregation and before reading the DB. */ - if (ufshcd_is_intr_aggr_allowed(hba)) + if (ufshcd_is_intr_aggr_allowed(hba) && + !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) ufshcd_reset_intr_aggr(hba); tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 071f0edf3f64..53096642f9a8 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -523,6 +523,12 @@ enum ufshcd_quirks { * Clear handling for transfer/task request list is just opposite. */ UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR = 1 << 6, + + /* + * This quirk needs to be enabled if host controller doesn't allow + * that the interrupt aggregation timer and counter are reset by s/w. + */ + UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR = 1 << 7, }; enum ufshcd_caps {