From patchwork Sun Mar 17 19:59:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 10856853 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 897CE17E6 for ; Mon, 18 Mar 2019 04:01:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6C3C62881A for ; Mon, 18 Mar 2019 04:01:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 601C628A74; Mon, 18 Mar 2019 04:01:17 +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=-6.4 required=2.0 tests=BAYES_00,DATE_IN_PAST_06_12, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 77B612881A for ; Mon, 18 Mar 2019 04:01:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725945AbfCREBP (ORCPT ); Mon, 18 Mar 2019 00:01:15 -0400 Received: from mga04.intel.com ([192.55.52.120]:60030 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725915AbfCREBP (ORCPT ); Mon, 18 Mar 2019 00:01:15 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Mar 2019 21:01:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,492,1544515200"; d="scan'208";a="135163810" Received: from iweiny-desk2.sc.intel.com ([10.3.52.157]) by fmsmga007.fm.intel.com with ESMTP; 17 Mar 2019 21:01:13 -0700 From: ira.weiny@intel.com To: Jason Gunthorpe , Steven Rostedt Cc: Ingo Molnar , linux-rdma@vger.kernel.org, Ira Weiny , Hal Rosenstock , Alexei Starovoitov , Leon Romanovsky , "Ruhl, Michael J" Subject: [PATCH V6 1/6] IB/MAD: Add send path trace points Date: Sun, 17 Mar 2019 12:59:45 -0700 Message-Id: <20190317195950.2991-2-ira.weiny@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190317195950.2991-1-ira.weiny@intel.com> References: <20190317195950.2991-1-ira.weiny@intel.com> MIME-Version: 1.0 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 From: Ira Weiny Use the standard Linux trace mechanism to trace MADs being sent. 4 trace points are added, when the MAD is posted to the qp, when the MAD is completed, if a MAD is resent, and when the MAD completes in error. CC: Hal Rosenstock CC: Alexei Starovoitov CC: Leon Romanovsky CC: Jason Gunthorpe CC: "Ruhl, Michael J" Suggested-by: Steven Rostedt (VMware) Signed-off-by: Ira Weiny Reviewed-by: Steven Rostedt (VMware) --- Changes from V5: Merge using the trace structe in create_mad_addr_info() Fixed version for TRACEPOINTS off Changes from V1 Fix compilation when TRACEPOINTS are not configured Changes since v4: Clean up for checkpatch Remove helper function trace_create_mad_addr and if check Changes since v3: Change dev_name to dev_index Changes since v2: Change license text to SPDX tag Change dev_name to string from array Reorder fields for more compact ring buffer utilization Use a defined roce address type for safer memcpy/memset Changes since v1: Update MAINTAINERS with tracing file MAINTAINERS | 1 + drivers/infiniband/core/mad.c | 46 ++++++++- include/trace/events/ib_mad.h | 187 ++++++++++++++++++++++++++++++++++ 3 files changed, 233 insertions(+), 1 deletion(-) create mode 100644 include/trace/events/ib_mad.h diff --git a/MAINTAINERS b/MAINTAINERS index 8c68de3cfd80..9254bd40f1ae 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7491,6 +7491,7 @@ F: drivers/infiniband/ F: include/uapi/linux/if_infiniband.h F: include/uapi/rdma/ F: include/rdma/ +F: include/trace/events/ib_mad.h INGENIC JZ4780 DMA Driver M: Zubair Lutfullah Kakakhel diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index e742a6a2c138..92133b2c5072 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -3,7 +3,7 @@ * Copyright (c) 2005 Intel Corporation. All rights reserved. * Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved. * Copyright (c) 2009 HNR Consulting. All rights reserved. - * Copyright (c) 2014 Intel Corporation. All rights reserved. + * Copyright (c) 2014,2018 Intel Corporation. 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 @@ -51,6 +51,45 @@ #include "opa_smi.h" #include "agent.h" +#define CREATE_TRACE_POINTS +#include + +#ifdef CONFIG_TRACEPOINTS +static void create_mad_addr_info(struct ib_mad_send_wr_private *mad_send_wr, + struct ib_mad_qp_info *qp_info, + struct trace_event_raw_ib_mad_send_template *entry) +{ + u16 pkey; + struct ib_device *dev = qp_info->port_priv->device; + u8 pnum = qp_info->port_priv->port_num; + struct ib_ud_wr *wr = &mad_send_wr->send_wr; + struct rdma_ah_attr attr; + + memset(&attr, 0, sizeof(attr)); + rdma_query_ah(wr->ah, &attr); + + /* These are common */ + entry->sl = attr.sl; + ib_query_pkey(dev, pnum, wr->pkey_index, &pkey); + entry->pkey = pkey; + entry->rqpn = wr->remote_qpn; + entry->rqkey = wr->remote_qkey; + + switch (attr.type) { + case RDMA_AH_ATTR_TYPE_IB: + entry->dlid = attr.ib.dlid; + break; + case RDMA_AH_ATTR_TYPE_OPA: + entry->dlid = attr.opa.dlid; + break; + case RDMA_AH_ATTR_TYPE_ROCE: + case RDMA_AH_ATTR_TYPE_UNDEFINED: + entry->dlid = 0; + break; + } +} +#endif + static int mad_sendq_size = IB_MAD_QP_SEND_SIZE; static int mad_recvq_size = IB_MAD_QP_RECV_SIZE; @@ -1223,6 +1262,7 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr) spin_lock_irqsave(&qp_info->send_queue.lock, flags); if (qp_info->send_queue.count < qp_info->send_queue.max_active) { + trace_ib_mad_ib_send_mad(mad_send_wr, qp_info); ret = ib_post_send(mad_agent->qp, &mad_send_wr->send_wr.wr, NULL); list = &qp_info->send_queue.list; @@ -2496,6 +2536,8 @@ static void ib_mad_send_done(struct ib_cq *cq, struct ib_wc *wc) send_queue = mad_list->mad_queue; qp_info = send_queue->qp_info; + trace_ib_mad_send_done_handler(mad_send_wr, wc); + retry: ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device, mad_send_wr->header_mapping, @@ -2527,6 +2569,7 @@ static void ib_mad_send_done(struct ib_cq *cq, struct ib_wc *wc) ib_mad_complete_send_wr(mad_send_wr, &mad_send_wc); if (queued_send_wr) { + trace_ib_mad_send_done_resend(queued_send_wr, qp_info); ret = ib_post_send(qp_info->qp, &queued_send_wr->send_wr.wr, NULL); if (ret) { @@ -2574,6 +2617,7 @@ static bool ib_mad_send_error(struct ib_mad_port_private *port_priv, if (mad_send_wr->retry) { /* Repost send */ mad_send_wr->retry = 0; + trace_ib_mad_error_handler(mad_send_wr, qp_info); ret = ib_post_send(qp_info->qp, &mad_send_wr->send_wr.wr, NULL); if (!ret) diff --git a/include/trace/events/ib_mad.h b/include/trace/events/ib_mad.h new file mode 100644 index 000000000000..585028f17fa7 --- /dev/null +++ b/include/trace/events/ib_mad.h @@ -0,0 +1,187 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ + +/* + * Copyright (c) 2018 Intel Corporation. All rights reserved. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM ib_mad + +#if !defined(_TRACE_IB_MAD_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_IB_MAD_H + +#include +#include + +#ifdef CONFIG_TRACEPOINTS +struct trace_event_raw_ib_mad_send_template; +static void create_mad_addr_info(struct ib_mad_send_wr_private *mad_send_wr, + struct ib_mad_qp_info *qp_info, + struct trace_event_raw_ib_mad_send_template *entry); +#endif + +DECLARE_EVENT_CLASS(ib_mad_send_template, + TP_PROTO(struct ib_mad_send_wr_private *wr, + struct ib_mad_qp_info *qp_info), + TP_ARGS(wr, qp_info), + + TP_STRUCT__entry( + __field(u8, base_version) + __field(u8, mgmt_class) + __field(u8, class_version) + __field(u8, port_num) + __field(u32, qp_num) + __field(u8, method) + __field(u8, sl) + __field(u16, attr_id) + __field(u32, attr_mod) + __field(u64, wrtid) + __field(u64, tid) + __field(u16, status) + __field(u16, class_specific) + __field(u32, length) + __field(u32, dlid) + __field(u32, rqpn) + __field(u32, rqkey) + __field(u32, dev_index) + __field(void *, agent_priv) + __field(unsigned long, timeout) + __field(int, retries_left) + __field(int, max_retries) + __field(int, retry) + __field(u16, pkey) + ), + + TP_fast_assign( + __entry->dev_index = wr->mad_agent_priv->agent.device->index; + __entry->port_num = wr->mad_agent_priv->agent.port_num; + __entry->qp_num = wr->mad_agent_priv->qp_info->qp->qp_num; + __entry->agent_priv = wr->mad_agent_priv; + __entry->wrtid = wr->tid; + __entry->max_retries = wr->max_retries; + __entry->retries_left = wr->retries_left; + __entry->retry = wr->retry; + __entry->timeout = wr->timeout; + __entry->length = wr->send_buf.hdr_len + + wr->send_buf.data_len; + __entry->base_version = + ((struct ib_mad_hdr *)wr->send_buf.mad)->base_version; + __entry->mgmt_class = + ((struct ib_mad_hdr *)wr->send_buf.mad)->mgmt_class; + __entry->class_version = + ((struct ib_mad_hdr *)wr->send_buf.mad)->class_version; + __entry->method = + ((struct ib_mad_hdr *)wr->send_buf.mad)->method; + __entry->status = + ((struct ib_mad_hdr *)wr->send_buf.mad)->status; + __entry->class_specific = + ((struct ib_mad_hdr *)wr->send_buf.mad)->class_specific; + __entry->tid = ((struct ib_mad_hdr *)wr->send_buf.mad)->tid; + __entry->attr_id = + ((struct ib_mad_hdr *)wr->send_buf.mad)->attr_id; + __entry->attr_mod = + ((struct ib_mad_hdr *)wr->send_buf.mad)->attr_mod; + create_mad_addr_info(wr, qp_info, __entry); + ), + + TP_printk("%d:%d QP%d agent %p: " \ + "wrtid 0x%llx; %d/%d retries(%d); timeout %lu length %d : " \ + "hdr : base_ver 0x%x class 0x%x class_ver 0x%x " \ + "method 0x%x status 0x%x class_specific 0x%x tid 0x%llx " \ + "attr_id 0x%x attr_mod 0x%x => dlid 0x%08x sl %d "\ + "pkey 0x%x rpqn 0x%x rqpkey 0x%x", + __entry->dev_index, __entry->port_num, __entry->qp_num, + __entry->agent_priv, be64_to_cpu(__entry->wrtid), + __entry->retries_left, __entry->max_retries, + __entry->retry, __entry->timeout, __entry->length, + __entry->base_version, __entry->mgmt_class, + __entry->class_version, + __entry->method, be16_to_cpu(__entry->status), + be16_to_cpu(__entry->class_specific), + be64_to_cpu(__entry->tid), be16_to_cpu(__entry->attr_id), + be32_to_cpu(__entry->attr_mod), + be32_to_cpu(__entry->dlid), __entry->sl, __entry->pkey, + __entry->rqpn, __entry->rqkey + ) +); + +DEFINE_EVENT(ib_mad_send_template, ib_mad_error_handler, + TP_PROTO(struct ib_mad_send_wr_private *wr, + struct ib_mad_qp_info *qp_info), + TP_ARGS(wr, qp_info)); +DEFINE_EVENT(ib_mad_send_template, ib_mad_ib_send_mad, + TP_PROTO(struct ib_mad_send_wr_private *wr, + struct ib_mad_qp_info *qp_info), + TP_ARGS(wr, qp_info)); +DEFINE_EVENT(ib_mad_send_template, ib_mad_send_done_resend, + TP_PROTO(struct ib_mad_send_wr_private *wr, + struct ib_mad_qp_info *qp_info), + TP_ARGS(wr, qp_info)); + +TRACE_EVENT(ib_mad_send_done_handler, + TP_PROTO(struct ib_mad_send_wr_private *wr, struct ib_wc *wc), + TP_ARGS(wr, wc), + + TP_STRUCT__entry( + __field(u8, port_num) + __field(u8, base_version) + __field(u8, mgmt_class) + __field(u8, class_version) + __field(u32, qp_num) + __field(u64, wrtid) + __field(u16, status) + __field(u16, wc_status) + __field(u32, length) + __field(void *, agent_priv) + __field(unsigned long, timeout) + __field(u32, dev_index) + __field(int, retries_left) + __field(int, max_retries) + __field(int, retry) + __field(u8, method) + ), + + TP_fast_assign( + __entry->dev_index = wr->mad_agent_priv->agent.device->index; + __entry->port_num = wr->mad_agent_priv->agent.port_num; + __entry->qp_num = wr->mad_agent_priv->qp_info->qp->qp_num; + __entry->agent_priv = wr->mad_agent_priv; + __entry->wrtid = wr->tid; + __entry->max_retries = wr->max_retries; + __entry->retries_left = wr->retries_left; + __entry->retry = wr->retry; + __entry->timeout = wr->timeout; + __entry->base_version = + ((struct ib_mad_hdr *)wr->send_buf.mad)->base_version; + __entry->mgmt_class = + ((struct ib_mad_hdr *)wr->send_buf.mad)->mgmt_class; + __entry->class_version = + ((struct ib_mad_hdr *)wr->send_buf.mad)->class_version; + __entry->method = + ((struct ib_mad_hdr *)wr->send_buf.mad)->method; + __entry->status = + ((struct ib_mad_hdr *)wr->send_buf.mad)->status; + __entry->wc_status = wc->status; + __entry->length = wc->byte_len; + ), + + TP_printk("%d:%d QP%d : SEND WC Status %d : agent %p: " \ + "wrtid 0x%llx %d/%d retries(%d) timeout %lu length %d: " \ + "hdr : base_ver 0x%x class 0x%x class_ver 0x%x " \ + "method 0x%x status 0x%x", + __entry->dev_index, __entry->port_num, __entry->qp_num, + __entry->wc_status, + __entry->agent_priv, be64_to_cpu(__entry->wrtid), + __entry->retries_left, __entry->max_retries, + __entry->retry, __entry->timeout, + __entry->length, + __entry->base_version, __entry->mgmt_class, + __entry->class_version, __entry->method, + be16_to_cpu(__entry->status) + ) +); + + +#endif /* _TRACE_IB_MAD_H */ + +#include