[ofw] enabling LSO causes IB_INVALID_PARAMETER in ib_post_send() ?

[Tzachi Dar]

I believe that "enable LSO" should mean "Enable LSO if the hw supports it".
This was the idea that we had with checksum.

We need to check what went wrong. Until then feel free to disable it.

Thanks
Tzachi

> -----Original Message-----
> From: Smith, Stan [mailto:stan.smith at intel.com]
> Sent: Wednesday, December 29, 2010 11:42 PM
> To: Tzachi Dar; Alex Naslednikov
> Cc: ofw at lists.openfabrics.org
> Subject: RE: enabling LSO causes IB_INVALID_PARAMETER in ib_post_send()
> ?
> 
> Tzachi Dar wrote:
> > Infinihost does not support LSO. So I guess that the code should have
> > disabled LSO in any case.
> >
> > We will have to find why the driver does try to use LSO in this
> > configuration.
> 
> Hello,
>   There was a recent ipoib_ndis6_cm netipoib.inx file commit which set
> LSO enabled by default.
> For now I will modify local version of netipoib.inx to disable LSO by
> default.
> 
> stan.
> 
> >
> > Thanks
> > Tzachi
> >
> >> -----Original Message-----
> >> From: ofw-bounces at lists.openfabrics.org [mailto:ofw-
> >> bounces at lists.openfabrics.org] On Behalf Of Smith, Stan
> >> Sent: Wednesday, December 29, 2010 10:44 PM
> >> To: Alex Naslednikov
> >> Cc: ofw at lists.openfabrics.org
> >> Subject: [ofw] enabling LSO causes IB_INVALID_PARAMETER in
> >> ib_post_send() ?
> >>
> >> Hello Alex,
> >>   Using the SVN head of ipoib_ndis6_cm\ I find when running a
> checked
> >> version which has LSO enabled per .inf file mod, (ttcp -t to a
> >> winOFED
> >> 2.5 installed system), the ipoib_process_sg_list_real() call to
> >> ib_post_send() call ALWAYS returns IB_INVALID_PARAMETER?
> >>
> >> If I change the .inf file to disable LSO, and reload ipoib.sys,
> >> ib_post_send() always succeeds.
> >>
> >> HCA is Infinihost MT25208 with latest firmware.
> >>
> >> Any thoughts as to why LSO enabled produces the ib_post_send() error
> >> in this config?
> >>
> >> stan.
> >>
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