From: "정요한(JOUNG YOHAN) Mobile SE" <yohan.joung@sk.com>
To: "daejun7.park@samsung.com" <daejun7.park@samsung.com>
Cc: "alim.akhtar@samsung.com" <alim.akhtar@samsung.com>,
"asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
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"cang@codeaurora.org" <cang@codeaurora.org>,
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Subject: Re: [PATCH v36 4/4] scsi: ufs: Add HPB 2.0 support
Date: Thu, 10 Jun 2021 02:12:27 +0000 [thread overview]
Message-ID: <b64cf2a49a1b43f09961eb4d5d4ea5c2@sk.com> (raw)
diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h index 6e6a0252dc15..b1128b0ce486 100644
--- a/drivers/scsi/ufs/ufshpb.h
+++ b/drivers/scsi/ufs/ufshpb.h
@@ -30,19 +30,29 @@
#define PINNED_NOT_SET U32_MAX
/* hpb support chunk size */
-#define HPB_MULTI_CHUNK_HIGH 1
+#define HPB_LEGACY_CHUNK_HIGH 1
+#define HPB_MULTI_CHUNK_LOW 7
+#define HPB_MULTI_CHUNK_HIGH 128
According to the JEDEC spec, bMAX_DATA_SIZE_FOR_HPB_SINGLE_CMD can be set from 4kb to 1024kb.
The transfer length should be provided up to 1020kb or 1024kb.
Why did you set HPB_MULTI_CHUNK_HIGH to 128?
It can sends the hpb command up to 512kb.
This doesn't seem to match the specs.
Thanks
Yohan.
next reply other threads:[~2021-06-10 2:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 2:12 정요한(JOUNG YOHAN) Mobile SE [this message]
[not found] <CGME20210607041650epcms2p29002c9d072738bbf21fb4acf31847e8e@epcms2p7>
2021-06-07 4:16 ` [PATCH v36 0/4] scsi: ufs: Add Host Performance Booster Support Daejun Park
2021-06-07 4:19 ` [PATCH v36 4/4] scsi: ufs: Add HPB 2.0 support Daejun Park
2021-06-10 1:55 ` 정요한(JOUNG YOHAN) Mobile SE
2021-06-10 3:37 ` Bart Van Assche
2021-06-10 6:07 ` Greg KH
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