From patchwork Wed Jan 6 17:58:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dennis Dalessandro X-Patchwork-Id: 7969121 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 95038BEEE5 for ; Wed, 6 Jan 2016 17:58:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7A00E2011D for ; Wed, 6 Jan 2016 17:58:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C5CA20117 for ; Wed, 6 Jan 2016 17:58:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751892AbcAFR6j (ORCPT ); Wed, 6 Jan 2016 12:58:39 -0500 Received: from mga09.intel.com ([134.134.136.24]:10190 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751605AbcAFR6i (ORCPT ); Wed, 6 Jan 2016 12:58:38 -0500 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP; 06 Jan 2016 09:58:38 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,530,1444719600"; d="scan'208";a="721437802" Received: from scymds02.sc.intel.com ([10.82.195.37]) by orsmga003.jf.intel.com with ESMTP; 06 Jan 2016 09:58:37 -0800 Received: from scvm10.sc.intel.com (scvm10.sc.intel.com [10.82.195.27]) by scymds02.sc.intel.com with ESMTP id u06Hwbu1023608; Wed, 6 Jan 2016 09:58:37 -0800 Received: from scvm10.sc.intel.com (localhost [127.0.0.1]) by scvm10.sc.intel.com with ESMTP id u06Hwb3C013232; Wed, 6 Jan 2016 09:58:37 -0800 Subject: [PATCH v3 16/36] IB/rdmavt: Add process MAD stub To: dledford@redhat.com From: Dennis Dalessandro Cc: linux-rdma@vger.kernel.org, Mike Marciniszyn , Ira Weiny Date: Wed, 06 Jan 2016 09:58:37 -0800 Message-ID: <20160106175828.8747.99545.stgit@scvm10.sc.intel.com> In-Reply-To: <20160106174638.8747.47197.stgit@scvm10.sc.intel.com> References: <20160106174638.8747.47197.stgit@scvm10.sc.intel.com> User-Agent: StGit/0.16 MIME-Version: 1.0 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn Reviewed-by: Ira Weiny Signed-off-by: Dennis Dalessandro --- drivers/infiniband/sw/rdmavt/Makefile | 2 - drivers/infiniband/sw/rdmavt/mad.c | 85 +++++++++++++++++++++++++++++++++ drivers/infiniband/sw/rdmavt/mad.h | 59 +++++++++++++++++++++++ 3 files changed, 145 insertions(+), 1 deletions(-) create mode 100644 drivers/infiniband/sw/rdmavt/mad.c create mode 100644 drivers/infiniband/sw/rdmavt/mad.h -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/infiniband/sw/rdmavt/Makefile b/drivers/infiniband/sw/rdmavt/Makefile index d2af114..fe65410 100644 --- a/drivers/infiniband/sw/rdmavt/Makefile +++ b/drivers/infiniband/sw/rdmavt/Makefile @@ -7,4 +7,4 @@ # obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o -rdmavt-y := vt.o ah.o dma.o mcast.o mr.o pd.o qp.o srq.o +rdmavt-y := vt.o ah.o dma.o mad.o mcast.o mr.o pd.o qp.o srq.o diff --git a/drivers/infiniband/sw/rdmavt/mad.c b/drivers/infiniband/sw/rdmavt/mad.c new file mode 100644 index 0000000..eef7029 --- /dev/null +++ b/drivers/infiniband/sw/rdmavt/mad.c @@ -0,0 +1,85 @@ +/* + * Copyright(c) 2015 Intel Corporation. + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "mad.h" + +/** + * rvt_process_mad - process an incoming MAD packet + * @ibdev: the infiniband device this packet came in on + * @mad_flags: MAD flags + * @port: the port number this packet came in on + * @in_wc: the work completion entry for this packet + * @in_grh: the global route header for this packet + * @in_mad: the incoming MAD + * @out_mad: any outgoing MAD reply + * + * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not + * interested in processing. + * + * Note that the verbs framework has already done the MAD sanity checks, + * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE + * MADs. + * + * This is called by the ib_mad module. + */ +int rvt_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad_hdr *in, size_t in_mad_size, + struct ib_mad_hdr *out, size_t *out_mad_size, + u16 *out_mad_pkey_index) +{ + /* + * Drivers will need to provide a number of things. For exmaple counters + * will need to be maintained by the driver but shoud live in the rvt + * structure. More study will be needed to finalize the interface + * between drivers and rvt for mad packets. + * + *VT-DRIVER-API: ???? + * + */ + return IB_MAD_RESULT_FAILURE; +} diff --git a/drivers/infiniband/sw/rdmavt/mad.h b/drivers/infiniband/sw/rdmavt/mad.h new file mode 100644 index 0000000..ee740e9 --- /dev/null +++ b/drivers/infiniband/sw/rdmavt/mad.h @@ -0,0 +1,59 @@ +#ifndef DEF_RVTMAD_H +#define DEF_RVTMAD_H + +/* + * Copyright(c) 2015 Intel Corporation. + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include + +int rvt_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad_hdr *in, size_t in_mad_size, + struct ib_mad_hdr *out, size_t *out_mad_size, + u16 *out_mad_pkey_index); + +#endif /* DEF_RVTMAD_H */