From patchwork Wed May 20 08:13:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 6442901 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 4B85DC0432 for ; Wed, 20 May 2015 08:14:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8237F20382 for ; Wed, 20 May 2015 08:14:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 952972037F for ; Wed, 20 May 2015 08:14:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751810AbbETIOC (ORCPT ); Wed, 20 May 2015 04:14:02 -0400 Received: from mga03.intel.com ([134.134.136.65]:34124 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752337AbbETIN7 (ORCPT ); Wed, 20 May 2015 04:13:59 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP; 20 May 2015 01:13:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,464,1427785200"; d="scan'208";a="495941958" Received: from phlsvsds.ph.intel.com ([10.228.195.38]) by FMSMGA003.fm.intel.com with ESMTP; 20 May 2015 01:13:57 -0700 Received: from phlsvsds.ph.intel.com (localhost.localdomain [127.0.0.1]) by phlsvsds.ph.intel.com (8.13.8/8.13.8) with ESMTP id t4K8Dvqo019688; Wed, 20 May 2015 04:13:57 -0400 Received: (from iweiny@localhost) by phlsvsds.ph.intel.com (8.13.8/8.13.8/Submit) id t4K8Dukd019685; Wed, 20 May 2015 04:13:56 -0400 X-Authentication-Warning: phlsvsds.ph.intel.com: iweiny set sender to ira.weiny@intel.com using -f From: ira.weiny@intel.com To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, sean.hefty@intel.com, jgunthorpe@obsidianresearch.com, hal@dev.mellanox.co.il, Ira Weiny Subject: [PATCH 06/14] IB/mad: Add helper function for smi_check_forward_dr_smp Date: Wed, 20 May 2015 04:13:27 -0400 Message-Id: <1432109615-19564-7-git-send-email-ira.weiny@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1432109615-19564-1-git-send-email-ira.weiny@intel.com> References: <1432109615-19564-1-git-send-email-ira.weiny@intel.com> 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, T_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 From: Ira Weiny This helper function will be used later for processing both IB and OPA SMPs. Signed-off-by: Ira Weiny --- drivers/infiniband/core/smi.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/core/smi.c b/drivers/infiniband/core/smi.c index b09fa1dec865..4969ce3338fb 100644 --- a/drivers/infiniband/core/smi.c +++ b/drivers/infiniband/core/smi.c @@ -236,21 +236,20 @@ enum smi_action smi_handle_dr_smp_recv(struct ib_smp *smp, u8 node_type, smp->dr_slid == IB_LID_PERMISSIVE); } -enum smi_forward_action smi_check_forward_dr_smp(struct ib_smp *smp) +static inline +enum smi_forward_action __smi_check_forward_dr_smp(u8 hop_ptr, u8 hop_cnt, + u8 direction, + int dr_dlid_is_permissive, + int dr_slid_is_permissive) { - u8 hop_ptr, hop_cnt; - - hop_ptr = smp->hop_ptr; - hop_cnt = smp->hop_cnt; - - if (!ib_get_smp_direction(smp)) { + if (!direction) { /* C14-9:2 -- intermediate hop */ if (hop_ptr && hop_ptr < hop_cnt) return IB_SMI_FORWARD; /* C14-9:3 -- at the end of the DR segment of path */ if (hop_ptr == hop_cnt) - return (smp->dr_dlid == IB_LID_PERMISSIVE ? + return (dr_dlid_is_permissive ? IB_SMI_SEND : IB_SMI_LOCAL); /* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */ @@ -263,10 +262,19 @@ enum smi_forward_action smi_check_forward_dr_smp(struct ib_smp *smp) /* C14-13:3 -- at the end of the DR segment of path */ if (hop_ptr == 1) - return (smp->dr_slid != IB_LID_PERMISSIVE ? + return (dr_slid_is_permissive ? IB_SMI_SEND : IB_SMI_LOCAL); } return IB_SMI_LOCAL; + +} + +enum smi_forward_action smi_check_forward_dr_smp(struct ib_smp *smp) +{ + return __smi_check_forward_dr_smp(smp->hop_ptr, smp->hop_cnt, + ib_get_smp_direction(smp), + smp->dr_dlid == IB_LID_PERMISSIVE, + smp->dr_slid != IB_LID_PERMISSIVE); } /*