From patchwork Mon Dec 28 21:04:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dennis Dalessandro X-Patchwork-Id: 7927131 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 04EDD9F387 for ; Mon, 28 Dec 2015 21:04:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 29B132017E for ; Mon, 28 Dec 2015 21:04:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 394D22010B for ; Mon, 28 Dec 2015 21:04:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752703AbbL1VEp (ORCPT ); Mon, 28 Dec 2015 16:04:45 -0500 Received: from mga14.intel.com ([192.55.52.115]:17124 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752500AbbL1VEp (ORCPT ); Mon, 28 Dec 2015 16:04:45 -0500 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP; 28 Dec 2015 13:04:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,492,1444719600"; d="scan'208";a="20371206" Received: from scymds01.sc.intel.com ([10.82.194.37]) by fmsmga004.fm.intel.com with ESMTP; 28 Dec 2015 13:04:44 -0800 Received: from scvm10.sc.intel.com (scvm10.sc.intel.com [10.82.195.27]) by scymds01.sc.intel.com with ESMTP id tBSL4iR6019302; Mon, 28 Dec 2015 13:04:44 -0800 Received: from scvm10.sc.intel.com (localhost [127.0.0.1]) by scvm10.sc.intel.com with ESMTP id tBSL4iha001023; Mon, 28 Dec 2015 13:04:44 -0800 Subject: [PATCH v2 08/36] IB/rdmavt: Add pkey query stub To: dledford@redhat.com From: Dennis Dalessandro Cc: linux-rdma@vger.kernel.org, Mike Marciniszyn , Ira Weiny Date: Mon, 28 Dec 2015 13:04:44 -0800 Message-ID: <20151228210434.29850.71801.stgit@scvm10.sc.intel.com> In-Reply-To: <20151228205612.29850.7328.stgit@scvm10.sc.intel.com> References: <20151228205612.29850.7328.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 The pkey table will reside in the rvt structure but it will be modified only when the driver requests then rvt will simply read the value to return in the query. Reviewed-by: Mike Marciniszyn Reviewed-by: Ira Weiny Signed-off-by: Dennis Dalessandro --- drivers/infiniband/sw/rdmavt/vt.c | 21 +++++++++++++++++++++ include/rdma/rdma_vt.h | 3 ++- 2 files changed, 23 insertions(+), 1 deletions(-) -- 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/vt.c b/drivers/infiniband/sw/rdmavt/vt.c index 5ac241c..fc5372d 100644 --- a/drivers/infiniband/sw/rdmavt/vt.c +++ b/drivers/infiniband/sw/rdmavt/vt.c @@ -137,6 +137,26 @@ static int rvt_modify_port(struct ib_device *ibdev, u8 port, return -EOPNOTSUPP; } +/** + * rvt_query_pkey - Return a pkey from the table at a given index + * @ibdev: Verbs IB dev + * @port: Port number + * @intex: Index into pkey table + * + * Returns 0 on failure pkey otherwise + */ +static int rvt_query_pkey(struct ib_device *ibdev, u8 port, u16 index, + u16 *pkey) +{ + /* + * Driver will be responsible for keeping rvt_dev_info.pkey_table up to + * date. This function will just return that value. There is no need to + * lock, if a stale value is read and sent to the user so be it there is + * no way to protect against that anyway. + */ + return 0; +} + /* * Check driver override. If driver passes a value use it, otherwise we use our * own value. @@ -154,6 +174,7 @@ int rvt_register_device(struct rvt_dev_info *rdi) CHECK_DRIVER_OVERRIDE(rdi, modify_device); CHECK_DRIVER_OVERRIDE(rdi, query_port); CHECK_DRIVER_OVERRIDE(rdi, modify_port); + CHECK_DRIVER_OVERRIDE(rdi, query_pkey); /* DMA Operations */ rdi->ibdev.dma_ops = diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index 2990e03..bf072a4 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -114,12 +114,13 @@ struct rvt_dev_info { * The driver will also be responsible for filling in certain members of * dparms.props */ - struct ib_device ibdev; /* Driver specific properties */ struct rvt_driver_params dparms; + /* PKey Table goes here */ + /* * The work to create port files in /sys/class Infiniband is different * depending on the driver. This should not be extracted away and