Subject: Re: Hi, some prob with SBP2 code;
To: Rishabh Kumar Goel <Rishabh@soc-soft.com>
From: James Chacon <jmc@netbsd.org>
List: port-i386
Date: 08/11/2003 10:35:24
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>Hi james,
>=20
>I m working on firewire SBP2 driver code for NetBSD for Toshiba =
>processor. I m facing a lot of problems wrto SBP2 driver architecture.=20
>1. I did not understand the need for calling sbp2_free() form =
>sbpscsi_match().
There is a bug there but in general this is cleaning up data structures that
can't exist until an actual attach happens.
>2. the sbp2_init() function does not make a login call or in =
>other words, sbp2_login function is not called though it registers a =
>handler function and that too for WRITE_REQ_BLOCK.
You don't want it to at this stage. Drives can be plugged into multiple hosts
and simply probing them on the box shouldn't cause a login. On first access
to the drive (usually the scsi probes) it'll log into the drive.
James
>Regards,
>Rishabh
>
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><p class=3DMsoNormal><font size=3D2 face=3DArial><span =
>style=3D'font-size:10.0pt;
>font-family:Arial'>Hi <span =
>class=3DSpellE>james</span>,<o:p></o:p></span></font></p>
>
><p class=3DMsoNormal><font size=3D2 face=3DArial><span =
>style=3D'font-size:10.0pt;
>font-family:Arial'><o:p> </o:p></span></font></p>
>
><p class=3DMsoNormal><span class=3DGramE><font size=3D2 =
>face=3DArial><span
>style=3D'font-size:10.0pt;font-family:Arial'>I m working on <span =
>class=3DSpellE>firewire</span>
>SBP2 driver code for <span class=3DSpellE>NetBSD</span> for Toshiba =
>processor.</span></font></span><font
>size=3D2 face=3DArial><span =
>style=3D'font-size:10.0pt;font-family:Arial'> <span
>class=3DGramE>I m facing a lot of problems <span =
>class=3DSpellE>wrto</span> SBP2
>driver architecture.</span> <o:p></o:p></span></font></p>
>
><p class=3DMsoNormal><font size=3D2 face=3DArial><span =
>style=3D'font-size:10.0pt;
>font-family:Arial'>1.<span =
>style=3D'mso-tab-count:1'>=A0=A0=A0=A0=A0=A0=A0=A0 </span>I did not
>understand the need for calling sbp2_<span class=3DGramE>free(</span>) =
>form <span
>class=3DSpellE>sbpscsi_match</span>().<o:p></o:p></span></font></p>
>
><p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.5in'><font =
>size=3D2
>face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>2.<span
>style=3D'mso-tab-count:1'>=A0=A0=A0=A0=A0=A0=A0=A0 </span><span =
>class=3DGramE>the</span>
>sbp2_init() function does not make a login call or in other words, =
>sbp2_login
>function is not called though it registers a handler function and that =
>too for
>WRITE_REQ_BLOCK.<o:p></o:p></span></font></p>
>
><p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.5in'><font =
>size=3D2
>face=3DArial><span =
>style=3D'font-size:10.0pt;font-family:Arial'>Regards,<o:p></o:p></span></=
>font></p>
>
><p class=3DMsoNormal style=3D'margin-left:.5in;text-indent:-.5in'><font =
>size=3D2
>face=3DArial><span =
>style=3D'font-size:10.0pt;font-family:Arial'>Rishabh<o:p></o:p></span></f=
>ont></p>
>
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