Date: Sun, 04 Jul 2010 16:50:04 +0300 From: Daniel Braniss <danny@cs.huji.ac.il> To: Oliver Pinter <oliver.pntr@gmail.com> Cc: Alexander Motin <mav@freebsd.org>, FreeBSD-Current <freebsd-current@freebsd.org>, Daisuke Aoyama <aoyama@peach.ne.jp> Subject: Re: [Need Help]isboot (iSCSI boot driver) version 0.2.1 Message-ID: <E1OVPa9-0000JS-1t@kabab.cs.huji.ac.il> In-Reply-To: <AANLkTikAEZzOWE3yTCWWm3GyRorvzSaMpnVMefIytHhS@mail.gmail.com> References: <6BC2B2FBAFFA4C26A46977F121B707E1@ad.peach.ne.jp> <mailpost.1278162245.7916753.99842.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw> <4C2F4B67.3060201@FreeBSD.org> <10CB692CA3FE4A8992B250B7F35B243B@ad.peach.ne.jp> <4C30758E.7080102@FreeBSD.org> <AANLkTikAEZzOWE3yTCWWm3GyRorvzSaMpnVMefIytHhS@mail.gmail.com>
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> iscsi initiator paniced over 4 dev, and the code has limitations of
> devices, it is hardcoded to 4
>
> 9f2ae5be (scottl 2007-07-24 15:35:02 +0000 39) #define ISCSIDEV "iscsi"
> 9f2ae5be (scottl 2007-07-24 15:35:02 +0000 40)
> 9f2ae5be (scottl 2007-07-24 15:35:02 +0000 41) #define
> ISCSI_MAX_TARGETS 4 //64
> 9f2ae5be (scottl 2007-07-24 15:35:02 +0000 42)
> 9f2ae5be (scottl 2007-07-24 15:35:02 +0000 43) #define ISCSI_MAX_LUNS
> 4
>
> when setting this to 64, than paniced the kernel
>
get
ftp://ftp.cs.huji.ac.il/users/danny/freebsd/iscsi-2.2.4.tar.gz
but what does this have to to with the Subject:?
danny
>
> On 7/4/10, Alexander Motin <mav@freebsd.org> wrote:
> > Daisuke Aoyama wrote:
> >>>> Notes/Known Issues/Limitations:
> >>>> FreeBSD can't use transfer length > 64KB.
> >>>
> >>> Since 8.0 FreeBSD can use any transfer lengths. 64K is a safety limit
> >>> for CAM SIMs that do not report maximum transfer size. If your driver
> >>> supports bigger transactions (and even if not), you should fill maxio
> >>> field in XPT_PATH_INQ response.
> >>
> >> I set maxio=1024*1024 in version 0.2.2. As a result, the request (each
> >> ccb)
> >> have 256 blocks (128KB). I don't know why it is 128KB.
> >
> > 128KB is a default MAXPHYS value. You may rise it in your kernel if you
> > want. I am successfully using 1MB MAXPHYS now.
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