From patchwork Thu Jun 2 16:57:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Moni Shoua X-Patchwork-Id: 9150981 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 80EBD6074E for ; Thu, 2 Jun 2016 17:01:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 708442780C for ; Thu, 2 Jun 2016 17:01:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6486D28310; Thu, 2 Jun 2016 17:01:08 +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, UNPARSEABLE_RELAY 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 C1BA92780C for ; Thu, 2 Jun 2016 17:01:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161469AbcFBRBG (ORCPT ); Thu, 2 Jun 2016 13:01:06 -0400 Received: from [193.47.165.129] ([193.47.165.129]:43189 "EHLO mellanox.co.il" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1161459AbcFBRBG (ORCPT ); Thu, 2 Jun 2016 13:01:06 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from monis@mellanox.com) with ESMTPS (AES256-SHA encrypted); 2 Jun 2016 19:57:48 +0300 Received: from r-vnc06.mtr.labs.mlnx (r-vnc06.mtr.labs.mlnx [10.208.0.117]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id u52Gvk8n028172; Thu, 2 Jun 2016 19:57:48 +0300 From: Moni Shoua To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, matanb@mellanox.com, leon@mellanox.com, majd@mellanox.com, liranl@mellanox.com, Moni Shoua , Kamal Heib , Amir Vadai Subject: [PATCH rdma-next 28/29] IB/rxe: Shared objects between user and kernel Date: Thu, 2 Jun 2016 19:57:36 +0300 Message-Id: <1464886657-14258-29-git-send-email-monis@mellanox.com> X-Mailer: git-send-email 1.7.6.4 In-Reply-To: <1464886657-14258-1-git-send-email-monis@mellanox.com> References: <1464886657-14258-1-git-send-email-monis@mellanox.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 User and kernel pass objects in shared memeory. For this both sides need to declare about the layout of each object in memory or in other words: agree about the ABI. Signed-off-by: Kamal Heib Signed-off-by: Amir Vadai Signed-off-by: Moni Shoua Reviewed-by: Haggai Eran --- include/uapi/rdma/Kbuild | 1 + include/uapi/rdma/ib_rxe.h | 139 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 140 insertions(+) create mode 100644 include/uapi/rdma/ib_rxe.h diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild index 231901b..94f9401 100644 --- a/include/uapi/rdma/Kbuild +++ b/include/uapi/rdma/Kbuild @@ -6,3 +6,4 @@ header-y += ib_user_verbs.h header-y += rdma_netlink.h header-y += rdma_user_cm.h header-y += hfi/ +header-y += ib_rxe.h diff --git a/include/uapi/rdma/ib_rxe.h b/include/uapi/rdma/ib_rxe.h new file mode 100644 index 0000000..eb8ff8c --- /dev/null +++ b/include/uapi/rdma/ib_rxe.h @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2015 Mellanox Technologies Ltd. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * 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. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef IB_RXE_H +#define IB_RXE_H + +#include + +union rxe_gid { + __u8 raw[16]; + struct { + __be64 subnet_prefix; + __be64 interface_id; + } global; +}; + +struct rxe_global_route { + union rxe_gid dgid; + __u32 flow_label; + __u8 sgid_index; + __u8 hop_limit; + __u8 traffic_class; +}; + +struct rxe_av { + __u8 port_num; + __u8 network_type; + struct rxe_global_route grh; + union { + struct sockaddr _sockaddr; + struct sockaddr_in _sockaddr_in; + struct sockaddr_in6 _sockaddr_in6; + } sgid_addr, dgid_addr; +}; + +struct rxe_send_wr { + __u64 wr_id; + __u32 num_sge; + __u32 opcode; + __u32 send_flags; + union { + __be32 imm_data; + __u32 invalidate_rkey; + } ex; + union { + struct { + __u64 remote_addr; + __u32 rkey; + } rdma; + struct { + __u64 remote_addr; + __u64 compare_add; + __u64 swap; + __u32 rkey; + } atomic; + struct { + __u32 remote_qpn; + __u32 remote_qkey; + __u16 pkey_index; + } ud; + } wr; +}; + +struct rxe_sge { + __u64 addr; + __u32 length; + __u32 lkey; +}; + +struct mminfo { + __u64 offset; + __u32 size; + __u32 pad; +}; + +struct rxe_dma_info { + __u32 length; + __u32 resid; + __u32 cur_sge; + __u32 num_sge; + __u32 sge_offset; + union { + __u8 inline_data[0]; + struct rxe_sge sge[0]; + }; +}; + +struct rxe_send_wqe { + struct rxe_send_wr wr; + struct rxe_av av; + __u32 status; + __u32 state; + __u64 iova; + __u32 mask; + __u32 first_psn; + __u32 last_psn; + __u32 ack_length; + __u32 ssn; + __u32 has_rd_atomic; + struct rxe_dma_info dma; +}; + +struct rxe_recv_wqe { + __u64 wr_id; + __u32 num_sge; + __u32 padding; + struct rxe_dma_info dma; +}; + +#endif /* IB_RXE_H */