On Mon, 2008-04-28 at 18:20 +0300, Jack Morgenstein wrote: > On Monday 28 April 2008 18:02, Hal Rosenstock wrote: > > In places where there are reserved resources (like qps, srqs, others ?), > > should it be ensured that the parameters set are above the logs of those > > amounts so the user doesn't shoot themselves in the foot by accident ? > > > No worry there. The reserved resources are subtracted from the above > log amounts (when expressed as a power-of-2: 1UL << log), and the > resulting amounts (<power-of-2> - reserved) returned to the user as > the device limits. > (check this out using ibv_devinfo) > > Thus, the user CANNOT "shoot themselves in the foot".
Right; that accounts for the reserved ones but what happens if they mistakenly set something like log_num_qp = 5 where the total number is less than the reserved number ? Should this be protected against in some way (friendly error or bump to minimum needed) and/or indicate a minimum in the mod param description ? > - Jack > > (P.S. this patch is in OFED 1.3 Also, OFED 1.2.5.4 > -- do "modinfo mlx4_core" to see the above module parameters ). Thanks. -- Hal _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
