[ofa-general] Re: [PATCH] mlx4: display misc device information via sysfs under /sys/class/infiniband/mlx4_x, for ibstat and ibv_devinfo
Jack Morgenstein
jackm at dev.mellanox.co.il
Tue Oct 2 00:38:32 PDT 2007
On Monday 01 October 2007 22:47, Roland Dreier wrote:
> > Yes, the change should go upstream. With an MGM entry size of 64, each multicast group
> > can support only 8 QPs. Increasing the entry size to 256 enables support of 56 QPs per
> > multicast group (8 QPs per multicast group was not enough for some users).
>
> OK, send a patch I guess. But is there some reason why the same limit
> in mthca wasn't a problem for years now?
Reason is new 16-core nodes (4 socket quad-core). Want a QP per node to join a specific multicast group.
I'm sending a patch in a separate post.
- Jack
> - R.
>
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