From patchwork Wed May 10 23:23:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dasaratharaman Chandramouli X-Patchwork-Id: 9720751 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1DBD460364 for ; Wed, 10 May 2017 23:23:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2DA952860E for ; Wed, 10 May 2017 23:23:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 22B2328635; Wed, 10 May 2017 23:23:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ACE7D2860E for ; Wed, 10 May 2017 23:23:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754599AbdEJXXW (ORCPT ); Wed, 10 May 2017 19:23:22 -0400 Received: from mga05.intel.com ([192.55.52.43]:13546 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753655AbdEJXXW (ORCPT ); Wed, 10 May 2017 19:23:22 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP; 10 May 2017 16:23:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,321,1491289200"; d="scan'208";a="1128792877" Received: from phwtpriv01.ph.intel.com ([10.228.208.76]) by orsmga001.jf.intel.com with ESMTP; 10 May 2017 16:23:20 -0700 From: Dasaratharaman Chandramouli To: Doug Ledford , linux-rdma Subject: [PATCH rdma-next 3/4] IB/CM: Set appropriate slid and dlid when handling CM request Date: Wed, 10 May 2017 19:23:17 -0400 Message-Id: <1494458598-6911-4-git-send-email-dasaratharaman.chandramouli@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1494458598-6911-1-git-send-email-dasaratharaman.chandramouli@intel.com> References: <1494458598-6911-1-git-send-email-dasaratharaman.chandramouli@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If extended LIDs are being used, a connection request contains OPA GIDs in them. Extract the lids from the OPA gids and populate slid/dlid fields in the path records that are created when handling a connection request. Reviewed-by: Don Hiatt Reviewed-by: Ira Weiny Signed-off-by: Dasaratharaman Chandramouli --- drivers/infiniband/core/cm.c | 67 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 56 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 01cfa24..2d0a550 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1427,16 +1427,48 @@ static bool cm_req_has_alt_path(struct cm_req_msg *req_msg) (ib_is_opa_gid(&req_msg->alt_local_gid))); } +static void cm_format_path_lid_from_req(struct cm_req_msg *req_msg, + struct sa_path_rec *primary_path, + struct sa_path_rec *alt_path) +{ + u32 lid; + + if (primary_path->rec_type != SA_PATH_REC_TYPE_OPA) { + sa_path_set_dlid(primary_path, + htonl(ntohs(req_msg->primary_local_lid))); + sa_path_set_slid(primary_path, + htonl(ntohs(req_msg->primary_remote_lid))); + } else { + lid = opa_get_lid_from_gid(&req_msg->primary_local_gid); + sa_path_set_dlid(primary_path, cpu_to_be32(lid)); + + lid = opa_get_lid_from_gid(&req_msg->primary_remote_gid); + sa_path_set_slid(primary_path, cpu_to_be32(lid)); + } + + if (!cm_req_has_alt_path(req_msg)) + return; + + if (alt_path->rec_type != SA_PATH_REC_TYPE_OPA) { + sa_path_set_dlid(alt_path, + htonl(ntohs(req_msg->alt_local_lid))); + sa_path_set_slid(alt_path, + htonl(ntohs(req_msg->alt_remote_lid))); + } else { + lid = opa_get_lid_from_gid(&req_msg->alt_local_gid); + sa_path_set_dlid(alt_path, cpu_to_be32(lid)); + + lid = opa_get_lid_from_gid(&req_msg->alt_remote_gid); + sa_path_set_slid(alt_path, cpu_to_be32(lid)); + } +} + static void cm_format_paths_from_req(struct cm_req_msg *req_msg, struct sa_path_rec *primary_path, struct sa_path_rec *alt_path) { primary_path->dgid = req_msg->primary_local_gid; primary_path->sgid = req_msg->primary_remote_gid; - sa_path_set_dlid(primary_path, - htonl(ntohs(req_msg->primary_local_lid))); - sa_path_set_slid(primary_path, - htonl(ntohs(req_msg->primary_remote_lid))); primary_path->flow_label = cm_req_get_primary_flow_label(req_msg); primary_path->hop_limit = req_msg->primary_hop_limit; primary_path->traffic_class = req_msg->primary_traffic_class; @@ -1453,13 +1485,9 @@ static void cm_format_paths_from_req(struct cm_req_msg *req_msg, primary_path->packet_life_time -= (primary_path->packet_life_time > 0); sa_path_set_service_id(primary_path, req_msg->service_id); - if (req_msg->alt_local_lid) { + if (cm_req_has_alt_path(req_msg)) { alt_path->dgid = req_msg->alt_local_gid; alt_path->sgid = req_msg->alt_remote_gid; - sa_path_set_dlid(alt_path, - htonl(ntohs(req_msg->alt_local_lid))); - sa_path_set_slid(alt_path, - htonl(ntohs(req_msg->alt_remote_lid))); alt_path->flow_label = cm_req_get_alt_flow_label(req_msg); alt_path->hop_limit = req_msg->alt_hop_limit; alt_path->traffic_class = req_msg->alt_traffic_class; @@ -1476,6 +1504,7 @@ static void cm_format_paths_from_req(struct cm_req_msg *req_msg, alt_path->packet_life_time -= (alt_path->packet_life_time > 0); sa_path_set_service_id(alt_path, req_msg->service_id); } + cm_format_path_lid_from_req(req_msg, primary_path, alt_path); } static u16 cm_get_bth_pkey(struct cm_work *work) @@ -2969,14 +2998,29 @@ int ib_send_cm_lap(struct ib_cm_id *cm_id, } EXPORT_SYMBOL(ib_send_cm_lap); +static void cm_format_path_lid_from_lap(struct cm_lap_msg *lap_msg, + struct sa_path_rec *path) +{ + u32 lid; + + if (path->rec_type != SA_PATH_REC_TYPE_OPA) { + sa_path_set_dlid(path, htonl(ntohs(lap_msg->alt_local_lid))); + sa_path_set_slid(path, htonl(ntohs(lap_msg->alt_remote_lid))); + } else { + lid = opa_get_lid_from_gid(&lap_msg->alt_local_gid); + sa_path_set_dlid(path, cpu_to_be32(lid)); + + lid = opa_get_lid_from_gid(&lap_msg->alt_remote_gid); + sa_path_set_slid(path, cpu_to_be32(lid)); + } +} + static void cm_format_path_from_lap(struct cm_id_private *cm_id_priv, struct sa_path_rec *path, struct cm_lap_msg *lap_msg) { path->dgid = lap_msg->alt_local_gid; path->sgid = lap_msg->alt_remote_gid; - sa_path_set_dlid(path, htonl(ntohs(lap_msg->alt_local_lid))); - sa_path_set_slid(path, htonl(ntohs(lap_msg->alt_remote_lid))); path->flow_label = cm_lap_get_flow_label(lap_msg); path->hop_limit = lap_msg->alt_hop_limit; path->traffic_class = cm_lap_get_traffic_class(lap_msg); @@ -2990,6 +3034,7 @@ static void cm_format_path_from_lap(struct cm_id_private *cm_id_priv, path->packet_life_time_selector = IB_SA_EQ; path->packet_life_time = cm_lap_get_local_ack_timeout(lap_msg); path->packet_life_time -= (path->packet_life_time > 0); + cm_format_path_lid_from_lap(lap_msg, path); } static int cm_lap_handler(struct cm_work *work)