From patchwork Tue Dec 1 20:38:12 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jubin.john@intel.com X-Patchwork-Id: 7740871 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 078B5BEEE1 for ; Tue, 1 Dec 2015 20:39:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3BCBA2067A for ; Tue, 1 Dec 2015 20:39:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E55420632 for ; Tue, 1 Dec 2015 20:39:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757089AbbLAUjN (ORCPT ); Tue, 1 Dec 2015 15:39:13 -0500 Received: from mga09.intel.com ([134.134.136.24]:20304 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757042AbbLAUib (ORCPT ); Tue, 1 Dec 2015 15:38:31 -0500 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP; 01 Dec 2015 12:38:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,370,1444719600"; d="scan'208";a="864464856" Received: from phlsvsds.ph.intel.com ([10.228.195.38]) by fmsmga002.fm.intel.com with ESMTP; 01 Dec 2015 12:38:30 -0800 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 tB1KcTqD015251; Tue, 1 Dec 2015 15:38:29 -0500 Received: (from jjohn@localhost) by phlsvsds.ph.intel.com (8.13.8/8.13.8/Submit) id tB1KcTIE015248; Tue, 1 Dec 2015 15:38:29 -0500 X-Authentication-Warning: phlsvsds.ph.intel.com: jjohn set sender to jubin.john@intel.com using -f From: Jubin John To: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org Cc: linux-rdma@vger.kernel.org, dledford@redhat.com, mike.marciniszyn@intel.com, ira.weiny@intel.com Subject: [PATCH v2 03/17] staging/rdma/hfi1: Add aeth name syndrome decode Date: Tue, 1 Dec 2015 15:38:12 -0500 Message-Id: <1449002306-15180-4-git-send-email-jubin.john@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1449002306-15180-1-git-send-email-jubin.john@intel.com> References: <1449002306-15180-1-git-send-email-jubin.john@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: Dean Luick Add aeth name syndrome decode to enhance debugging. The IBTA RC ACK contains an ACK extended transport header. Part of that header is the syndrome field that qualifies the RC ACK as an ACK, NAK, or RNR NAK. Without the patch here is the syndrome decode: aeth syn 0x00 Here is the decode with the fix: aeth syn 0x00 ACK Reviewed-by: Mike Marciniszyn Signed-off-by: Dean Luick Signed-off-by: Jubin John --- Changes in v2: - Added more information in commit message drivers/staging/rdma/hfi1/trace.c | 29 ++++++++++++++++++++++------- 1 files changed, 22 insertions(+), 7 deletions(-) diff --git a/drivers/staging/rdma/hfi1/trace.c b/drivers/staging/rdma/hfi1/trace.c index f55b751..10122e8 100644 --- a/drivers/staging/rdma/hfi1/trace.c +++ b/drivers/staging/rdma/hfi1/trace.c @@ -67,7 +67,7 @@ u8 ibhdr_exhdr_len(struct hfi1_ib_header *hdr) #define IMM_PRN "imm %d" #define RETH_PRN "reth vaddr 0x%.16llx rkey 0x%.8x dlen 0x%.8x" -#define AETH_PRN "aeth syn 0x%.2x msn 0x%.8x" +#define AETH_PRN "aeth syn 0x%.2x %s msn 0x%.8x" #define DETH_PRN "deth qkey 0x%.8x sqpn 0x%.6x" #define ATOMICACKETH_PRN "origdata %lld" #define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %lld cdata %lld" @@ -79,6 +79,19 @@ static u64 ib_u64_get(__be32 *p) return ((u64)be32_to_cpu(p[0]) << 32) | be32_to_cpu(p[1]); } +static const char *parse_syndrome(u8 syndrome) +{ + switch (syndrome >> 5) { + case 0: + return "ACK"; + case 1: + return "RNRNAK"; + case 3: + return "NAK"; + } + return ""; +} + const char *parse_everbs_hdrs( struct trace_seq *p, u8 opcode, @@ -124,16 +137,18 @@ const char *parse_everbs_hdrs( case OP(RC, RDMA_READ_RESPONSE_LAST): case OP(RC, RDMA_READ_RESPONSE_ONLY): case OP(RC, ACKNOWLEDGE): - trace_seq_printf(p, AETH_PRN, - be32_to_cpu(eh->aeth) >> 24, - be32_to_cpu(eh->aeth) & HFI1_MSN_MASK); + trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24, + parse_syndrome(be32_to_cpu(eh->aeth) >> 24), + be32_to_cpu(eh->aeth) & HFI1_MSN_MASK); break; /* aeth + atomicacketh */ case OP(RC, ATOMIC_ACKNOWLEDGE): trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN, - (be32_to_cpu(eh->at.aeth) >> 24) & 0xff, - be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK, - (unsigned long long)ib_u64_get(eh->at.atomic_ack_eth)); + be32_to_cpu(eh->at.aeth) >> 24, + parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24), + be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK, + (unsigned long long) + ib_u64_get(eh->at.atomic_ack_eth)); break; /* atomiceth */ case OP(RC, COMPARE_SWAP):