On Wed, Sep 06, 2017 at 11:50:15PM -0700, Yuval Shaia wrote: > On Wed, Sep 06, 2017 at 06:56:29PM +0300, Yishai Hadas wrote: > > On 9/6/2017 6:12 PM, Yuval Shaia wrote: > > >On Wed, Sep 06, 2017 at 05:38:48PM +0300, Yishai Hadas wrote: > > >>Add support to create a QP with source QPN (e.g. IPoIB QPN) over UD QP. > > > > > >Sorry, i missed the kernel patches. > > >Is this UD limitation is for mlx5 only? Asking as i see no limitation in > > >the verb layer (patch 1/3). > > > > From API point of view as was introduced by the verbs patch there is > > no limitation. The mlx5 driver implements the use case for UD QP to > > accelerate IPoIB packets. > > > > >If no, any plans for CM? > > No plan for CM at the moment, however, it may be considered in the > > future based on demand/use case. > > I can give you use case - migration. Maybe Yishai should adjust the name and description for this feature. It creates a SEND ONLY QP that is non-exclusive to normal UD QPs using the same QPN. What you are asking for is a way to create a new QP of any type with a fixed QPN so long as the QPN does not overlap with an existing QPN.. Very different. .. and migration needs a way to import quite alot of other state too, so not sure a fixed QPN is really useful for that in any event. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
