Hi Mini and thanks for the quick response. Moni Shoua wrote: > OK. So I ran more tests on my setup which now include > - Dual x86_64 processor (Intel Xeon) > - 1GB RAM > - 25204 HCA - fw_ver=1.1.0 > > In the range of 16K - to 256K of value for num_qp I got no errors. > For lower and higher values I got errors from INIT_HCA and (not always and > just for very low values) a machine hung. > Do you have the Oops saved somewhere? Can you put it here please? > > Sorry but i don't have a dump of the kernel oops but i have a strong belief that we saw the same kernel oops ... If it is needed, i will try to reproduce it one more time. > >> Did you verify the HCA profile module parameter feature? >> > As I mentioned earlier, I verified that non default values can be assigned > and that the HCA works for some selected values. > I also noticed that illegal cause the driver to throw a message to the kernel > log. > However, I didn't test the exact behaviout of all possible values for each > profile variable. > I guess that this is something that need to be done. i will add this to our regression in the future .... >> Is there is any known limitation for the values that should be used? >> (for example: only values which are power of two) >> >> >> > I guess that it is clear that there are hardware limitations that don't allow > setting of any value. > Unfotunately, even after looking for them in the PRM, I couldn't figure out > which are they. > The software limits the value to be a power of 2 and corrects the users if > they try to set a wrong value (to the nearest power of 2). In that case a > warning message is thrown to the kernel log. > As much as i know, the minimum amount of any resource (for example, QPs) are the number of resources that the HCA report as reserved.
I will open a bug in the Bugzilla, so we will know that there are problems in this feature. thanks Dotan _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
