Hi, Le mardi 10 novembre 2015 à 12:44 +0200, Sagi Grimberg a écrit : > Different devices may require different access permissions > for rdma reads e.g. for Infiniband devices, local write access > suffices while iWARP devices require remote write permissions as > well. > > This situation generates extra logic for ULPs that need to be aware > of the underlying device to determine rdma read access. Instead, > add a device attribute for ULPs to use without being aware of the > underlying device. > > Also, set rdma_read_access_flags in the relevant device drivers: > mlx4, mlx5, qib, ocrdma, nes: IB_ACCESS_LOCAL_WRITE > cxgb3, cxgb4, hfi: IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE > Why were those hw providers not modified to enforce IB_ACCESS_REMOTE_WRITE when needed, instead of asking users to set it for them ? Regards. -- Yann Droneaud OPTEYA -- 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
