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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Tom Yan <tom.ty89@gmail.com>
Cc: linux-scsi@vger.kernel.org
Subject: Re: [PATCH 1/1] sd: do not let LBPME bit stop the VPDs speak
Date: Wed, 09 Mar 2016 21:32:01 -0500	[thread overview]
Message-ID: <yq1io0vqd0e.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <CAGnHSE=Ct7vFas3K-DDwU68W+R=ADx7Tx36LBBk3gxeDFZG3Ow@mail.gmail.com> (Tom Yan's message of "Wed, 9 Mar 2016 11:38:15 +0800")

>>>>> "Tom" == Tom Yan <tom.ty89@gmail.com> writes:

Tom> Btw, why SD_MAX_WS16_BLOCKS (which is used for both SD_LBP_WS16 and
Tom> SD_LBP_UNMAP) is set to 0x7fffff (23-bit) instead of 0xffffffff
Tom> (32-bit, 4-byte)?

This limit represents the largest block range we can describe using a
single bio.

-- 
Martin K. Petersen	Oracle Linux Engineering

  reply	other threads:[~2016-03-10  2:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-09  3:26 [PATCH 1/1] sd: do not let LBPME bit stop the VPDs speak tom.ty89
2016-03-09  3:30 ` Tom Yan
2016-03-09  3:38   ` Tom Yan
2016-03-10  2:32     ` Martin K. Petersen [this message]
     [not found]       ` <CAGnHSEng46jz66wkhiA73vvgfFzNx+3R4WeBLbyBrhD5UR6NBw@mail.gmail.com>
2016-03-10  8:15         ` Fwd: " Tom Yan
2016-03-11  2:08           ` Martin K. Petersen
2016-03-10  2:24 ` Martin K. Petersen
     [not found]   ` <CAGnHSEnHG5i3EvwmcGZU5BXobUCQa7P+j+KKNrUyoS86s7d8Gg@mail.gmail.com>
2016-03-10  8:15     ` Fwd: " Tom Yan
2016-03-11  2:02       ` Martin K. Petersen
2016-03-10 10:33     ` Tom Yan
     [not found]       ` <CAGnHSEkLo7sp5PUqzk74aZi6r30hVDaj2fD-i_cCHWdezZNPwA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-11  3:26         ` Tom Yan

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