Return-Path: Received: from mail-wg0-f42.google.com ([74.125.82.42]:32980 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753160AbbDGMd2 (ORCPT ); Tue, 7 Apr 2015 08:33:28 -0400 Received: by wgin8 with SMTP id n8so54416025wgi.0 for ; Tue, 07 Apr 2015 05:33:26 -0700 (PDT) Message-ID: <5523CE93.8080809@profitbricks.com> Date: Tue, 07 Apr 2015 14:33:23 +0200 From: Michael Wang MIME-Version: 1.0 To: Roland Dreier , Sean Hefty , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org CC: 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 , Michael Wang Subject: [PATCH v2 07/17] IB/Verbs: Use management helper cap_ib_mcast() for mcast-check References: <5523CCD5.6030401@profitbricks.com> In-Reply-To: <5523CCD5.6030401@profitbricks.com> Content-Type: text/plain; charset=utf-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: Introduce helper cap_ib_mcast() to help us check if the port of an IB device support Infiniband Multicast. Cc: Jason Gunthorpe Cc: Doug Ledford Cc: Ira Weiny Cc: Sean Hefty Signed-off-by: Michael Wang --- drivers/infiniband/core/multicast.c | 12 +++--------- include/rdma/ib_verbs.h | 15 +++++++++++++++ 2 files changed, 18 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c index fa17b55..bdc1880 100644 --- a/drivers/infiniband/core/multicast.c +++ b/drivers/infiniband/core/multicast.c @@ -780,8 +780,7 @@ static void mcast_event_handler(struct ib_event_handler *handler, int index; dev = container_of(handler, struct mcast_device, event_handler); - if (rdma_port_get_link_layer(dev->device, event->element.port_num) != - IB_LINK_LAYER_INFINIBAND) + if (WARN_ON(!cap_ib_mcast(dev->device, event->element.port_num))) return; index = event->element.port_num - dev->start_port; @@ -808,9 +807,6 @@ static void mcast_add_one(struct ib_device *device) int i; int count = 0; - if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) - return; - dev = kmalloc(sizeof *dev + device->phys_port_cnt * sizeof *port, GFP_KERNEL); if (!dev) @@ -824,8 +820,7 @@ static void mcast_add_one(struct ib_device *device) } for (i = 0; i <= dev->end_port - dev->start_port; i++) { - if (rdma_port_get_link_layer(device, dev->start_port + i) != - IB_LINK_LAYER_INFINIBAND) + if (!cap_ib_mcast(device, dev->start_port + i)) continue; port = &dev->port[i]; port->dev = dev; @@ -863,8 +858,7 @@ static void mcast_remove_one(struct ib_device *device) flush_workqueue(mcast_wq); for (i = 0; i <= dev->end_port - dev->start_port; i++) { - if (rdma_port_get_link_layer(device, dev->start_port + i) == - IB_LINK_LAYER_INFINIBAND) { + if (cap_ib_mcast(device, dev->start_port + i)) { port = &dev->port[i]; deref_port(port); wait_for_completion(&port->comp); diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index c405e45..5a5f6d5 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1833,6 +1833,21 @@ static inline int cap_ib_sa(struct ib_device *device, u8 port_num) return rdma_transport_ib(device, port_num); } +/** + * cap_ib_mcast - Check if the port of device has the capability Infiniband + * Multicast. + * + * @device: Device to be checked + * @port_num: Port number of the device + * + * Return 0 when port of the device don't support Infiniband + * Multicast. + */ +static inline int cap_ib_mcast(struct ib_device *device, u8 port_num) +{ + return cap_ib_sa(device, port_num); +} + int ib_query_gid(struct ib_device *device, u8 port_num, int index, union ib_gid *gid); -- 2.1.0