Re: targ dir issue

From: Kenneth D. Merry <ken_at_FreeBSD.ORG>
Date: Mon, 30 Aug 2021 16:51:33 UTC
On Wed, Aug 25, 2021 at 04:14:38 +0900, ??? ?????? wrote:
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> Hi
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> I port ncv to eps for NCR53C500. And Support targ at esp.
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> I have question for targ.
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> inquery data is send by scsi_target apprication by CAM_DIR_IN.
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> But CAM_DIR_IN not copyin.
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> https://svnweb.freebsd.org/base/head/sys/cam/cam_periph.c?view=markup#l929
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> Why different ?

I think that may be a bug.  I see that if you have an XPT_CONT_TARGET_IO
CCB, for an INQUIRY, as you would in your case, it would be CAM_DIR_IN, but
would need to copy the data from userland into the kernel.

It looks like it changed in SVN revision 345656.

I have CCed Alexander Motin, he originally wrote that change and can take a
look at it.

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> Hiroki Mori

Thanks,

Ken
-- 
Kenneth Merry
ken@FreeBSD.ORG