> -----Original Message----- > From: Jason Gunthorpe [mailto:[email protected]] > Sent: Tuesday, April 07, 2015 3:13 PM > To: Michael Wang > Cc: Roland Dreier; Sean Hefty; [email protected]; > [email protected]; [email protected]; > [email protected]; Hal Rosenstock; Tom Tucker; Steve Wise; Hoang-Nam > Nguyen; Christoph Raisch; Mike Marciniszyn; Eli Cohen; > Faisal Latif; Upinder Malhi; Trond Myklebust; J. Bruce Fields; David S. > Miller; Ira Weiny; PJ Waskiewicz; Tatyana Nikolova; Or Gerlitz; Jack > Morgenstein; Haggai Eran; Ilya Nelkenbaum; Yann Droneaud; Bart Van Assche; > Shachar Raindel; Sagi Grimberg; Devesh Sharma; Matan > Barak; Moni Shoua; Jiri Kosina; Selvin Xavier; Mitesh Ahuja; Li RongQing; > Rasmus Villemoes; Alex Estrin; Doug Ledford; Eric Dumazet; Erez > Shitrit; Tom Gundersen; Chuck Lever > Subject: Re: [PATCH v2 10/17] IB/Verbs: Adopt management helpers for IB > helpers > > On Tue, Apr 07, 2015 at 02:35:22PM +0200, Michael Wang wrote: > > index f704254..4e61104 100644 > > +++ b/drivers/infiniband/core/sa_query.c > > @@ -540,7 +540,7 @@ int ib_init_ah_from_path(struct ib_device *device, u8 > > port_num, > > ah_attr->port_num = port_num; > > ah_attr->static_rate = rec->rate; > > > > - force_grh = rdma_port_get_link_layer(device, port_num) == > > IB_LINK_LAYER_ETHERNET; > > + force_grh = !rdma_transport_ib(device, port_num); > > Maybe these tests should be called cap_mandatory_grh - but I'm not > really sure how iWarp uses the GRH fields in the AH... >
iWARP runs on top of TCP...this SA code is all IB-specific. The reason it was checking for ETHERNET, I think, is for RoCE. So this change is totally incorrect, I think, because RoCE is an IB transport, but it runs on ETHERNET. Steve. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
