1When creating a new user context, exit if the kernel 2does not support XRC. (OFED libmlx4 has a compatibility problem). 3 4Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> 5 6Index: libmlx4/src/mlx4.c 7=================================================================== 8--- libmlx4.orig/src/mlx4.c 2009-05-10 12:16:33.000000000 +0300 9+++ libmlx4/src/mlx4.c 2009-05-10 12:30:06.000000000 +0300 10@@ -190,6 +190,12 @@ 11 context->max_qp_wr = dev_attrs.max_qp_wr; 12 context->max_sge = dev_attrs.max_sge; 13 context->max_cqe = dev_attrs.max_cqe; 14+ if (!(dev_attrs.device_cap_flags & IBV_DEVICE_XRC)) { 15+ fprintf(stderr, PFX "There is a mismatch between " 16+ "the kernel and the userspace libraries: " 17+ "Kernel does not support XRC. Exiting.\n"); 18+ goto query_free; 19+ } 20 21 return &context->ibv_ctx; 22 23