From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id E685EA00C2; Wed, 22 Apr 2020 21:06:13 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 619DC1D5F6; Wed, 22 Apr 2020 21:04:57 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by dpdk.org (Postfix) with ESMTP id BD0461C1EC for ; Wed, 22 Apr 2020 21:04:44 +0200 (CEST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03MJ1N6l005804; Wed, 22 Apr 2020 12:04:44 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0818; bh=5Q6VUC0QvtdB8jH8gX+mMX/igoMQCFIMUjlkjckRxrE=; b=C53svhh/SugJRVK0WcJlo2Npp3VMwZU5uiSFlK4c7soqK5wNC1SUcJamDrPa8ToX2lF2 FDAIJYkZfBZevSy8AbZWblkXl4ljJF2Ixa6iwAdVu76tMExQRpw0vRyW6aEEsvxVauae UeKBITNxTVLoGsWC2DCuu8hN/EIuls8CIp8/4ri+CO1n9p3Z+9dm/H8TaAw+v4UG+K5X T4vVFcG66yrRSF/dqUWlVy2BoJurKSip3HYR3YqgjvJAv4Zddzus0BU8vhMfs/Fqy7f4 UiTqmKkrDrLijPicVOt66zeWqFle4Qq68fiQrMoXOEi1MJ237tSDVAWnuAnS+3LeEiIG 7w== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0b-0016f401.pphosted.com with ESMTP id 30jd013jgu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 22 Apr 2020 12:04:44 -0700 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Apr 2020 12:04:41 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 22 Apr 2020 12:04:41 -0700 Received: from jerin-lab.marvell.com (jerin-lab.marvell.com [10.28.34.14]) by maili.marvell.com (Postfix) with ESMTP id C4C8D3F703F; Wed, 22 Apr 2020 12:04:39 -0700 (PDT) From: To: Jerin Jacob , Sunil Kumar Kori CC: , , , , Date: Thu, 23 Apr 2020 00:33:30 +0530 Message-ID: <20200422190349.3768487-14-jerinj@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200422190349.3768487-1-jerinj@marvell.com> References: <20200419100133.3232316-1-jerinj@marvell.com> <20200422190349.3768487-1-jerinj@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-22_06:2020-04-22, 2020-04-22 signatures=0 Subject: [dpdk-dev] [PATCH v7 13/32] eal/trace: implement provider payload X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Jerin Jacob The trace function payloads such as rte_trace_point_emit_* have dual functions. The first to emit the payload for the registration function and the second one to act as trace mem emitters a.k.a provider payload. When it used as provider payload, those function copy the trace field to trace memory based on the tracing mode. Added payload definitions under ALLOW_EXPERIMENTAL define to allow the out_of_tree application to compile with out ALLOW_EXPERIMENTAL flag. Signed-off-by: Jerin Jacob Signed-off-by: Sunil Kumar Kori --- lib/librte_eal/include/rte_trace_point.h | 18 ++++ .../include/rte_trace_point_provider.h | 90 +++++++++++++++++++ 2 files changed, 108 insertions(+) diff --git a/lib/librte_eal/include/rte_trace_point.h b/lib/librte_eal/include/rte_trace_point.h index f4e6d7e42..eca48db72 100644 --- a/lib/librte_eal/include/rte_trace_point.h +++ b/lib/librte_eal/include/rte_trace_point.h @@ -281,6 +281,24 @@ int __rte_trace_point_register(rte_trace_point_t *trace, const char *name, #include #endif +#ifndef __DOXYGEN__ + +#define rte_trace_point_emit_u64(in) __rte_trace_point_emit(in, uint64_t) +#define rte_trace_point_emit_i64(in) __rte_trace_point_emit(in, int64_t) +#define rte_trace_point_emit_u32(in) __rte_trace_point_emit(in, uint32_t) +#define rte_trace_point_emit_i32(in) __rte_trace_point_emit(in, int32_t) +#define rte_trace_point_emit_u16(in) __rte_trace_point_emit(in, uint16_t) +#define rte_trace_point_emit_i16(in) __rte_trace_point_emit(in, int16_t) +#define rte_trace_point_emit_u8(in) __rte_trace_point_emit(in, uint8_t) +#define rte_trace_point_emit_i8(in) __rte_trace_point_emit(in, int8_t) +#define rte_trace_point_emit_int(in) __rte_trace_point_emit(in, int32_t) +#define rte_trace_point_emit_long(in) __rte_trace_point_emit(in, long) +#define rte_trace_point_emit_float(in) __rte_trace_point_emit(in, float) +#define rte_trace_point_emit_double(in) __rte_trace_point_emit(in, double) +#define rte_trace_point_emit_ptr(in) __rte_trace_point_emit(in, uintptr_t) + +#endif + #ifdef __cplusplus } #endif diff --git a/lib/librte_eal/include/rte_trace_point_provider.h b/lib/librte_eal/include/rte_trace_point_provider.h index b8d727387..117e54437 100644 --- a/lib/librte_eal/include/rte_trace_point_provider.h +++ b/lib/librte_eal/include/rte_trace_point_provider.h @@ -9,6 +9,10 @@ #ifndef _RTE_TRACE_POINT_PROVIDER_H_ #define _RTE_TRACE_POINT_PROVIDER_H_ +#ifdef ALLOW_EXPERIMENTAL_API + +#include +#include #include #include #include @@ -38,4 +42,90 @@ struct __rte_trace_header { RTE_DECLARE_PER_LCORE(void *, trace_mem); +static __rte_always_inline void* +__rte_trace_mem_get(uint64_t in) +{ + struct __rte_trace_header *trace = RTE_PER_LCORE(trace_mem); + const uint16_t sz = in & __RTE_TRACE_FIELD_SIZE_MASK; + + /* Trace memory is not initialized for this thread */ + if (unlikely(trace == NULL)) { + __rte_trace_mem_per_thread_alloc(); + trace = RTE_PER_LCORE(trace_mem); + if (unlikely(trace == NULL)) + return NULL; + } + /* Check the wrap around case */ + uint32_t offset = trace->offset; + if (unlikely((offset + sz) >= trace->len)) { + /* Disable the trace event if it in DISCARD mode */ + if (unlikely(in & __RTE_TRACE_FIELD_ENABLE_DISCARD)) + return NULL; + + offset = 0; + } + /* Align to event header size */ + offset = RTE_ALIGN_CEIL(offset, __RTE_TRACE_EVENT_HEADER_SZ); + void *mem = RTE_PTR_ADD(&trace->mem[0], offset); + offset += sz; + trace->offset = offset; + + return mem; +} + +static __rte_always_inline void* +__rte_trace_point_emit_ev_header(void *mem, uint64_t in) +{ + uint64_t val; + + /* Event header [63:0] = id [63:48] | timestamp [47:0] */ + val = rte_get_tsc_cycles() & + ~(0xffffULL << __RTE_TRACE_EVENT_HEADER_ID_SHIFT); + val |= ((in & __RTE_TRACE_FIELD_ID_MASK) << + (__RTE_TRACE_EVENT_HEADER_ID_SHIFT - __RTE_TRACE_FIELD_ID_SHIFT)); + + *(uint64_t *)mem = val; + return RTE_PTR_ADD(mem, __RTE_TRACE_EVENT_HEADER_SZ); +} + +#define __rte_trace_point_emit_header_generic(t)\ +void *mem;\ +do {\ + const uint64_t val = __atomic_load_n(t, __ATOMIC_ACQUIRE);\ + if (likely(!(val & __RTE_TRACE_FIELD_ENABLE_MASK)))\ + return;\ + mem = __rte_trace_mem_get(val);\ + if (unlikely(mem == NULL)) \ + return;\ + mem = __rte_trace_point_emit_ev_header(mem, val);\ +} while (0) + +#define __rte_trace_point_emit_header_fp(t)\ + if (!__rte_trace_point_fp_is_enabled())\ + return;\ + __rte_trace_point_emit_header_generic(t) + +#define __rte_trace_point_emit(in, type)\ +do {\ + memcpy(mem, &(in), sizeof(in));\ + mem = RTE_PTR_ADD(mem, sizeof(in));\ +} while (0) + +#define rte_trace_point_emit_string(in)\ +do {\ + if (unlikely(in == NULL))\ + return;\ + rte_strscpy(mem, in, __RTE_TRACE_EMIT_STRING_LEN_MAX);\ + mem = RTE_PTR_ADD(mem, __RTE_TRACE_EMIT_STRING_LEN_MAX);\ +} while (0) + +#else + +#define __rte_trace_point_emit_header_generic(t) RTE_SET_USED(t) +#define __rte_trace_point_emit_header_fp(t) RTE_SET_USED(t) +#define __rte_trace_point_emit(in, type) RTE_SET_USED(in) +#define rte_trace_point_emit_string(in) RTE_SET_USED(in) + +#endif + #endif /* _RTE_TRACE_POINT_PROVIDER_H_ */ -- 2.25.1