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 1FE5EA04FC; Tue, 17 Dec 2019 11:42:33 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id EAA931BE9E; Tue, 17 Dec 2019 11:42:31 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by dpdk.org (Postfix) with ESMTP id 1E1672C17 for ; Tue, 17 Dec 2019 11:42:29 +0100 (CET) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBHAfGLh021566; Tue, 17 Dec 2019 02:42:29 -0800 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-type; s=pfpt0818; bh=OiNsLqVbvjirN1Y6yJy5sP+z+46Hjg+dAJVMuU61hiE=; b=V5HNpGeLhQ5RrLovOkrK+BrO9O8xA2uyoPEel3A07wKZQX851wlisTsf2Y8OIDH2BUZZ jAGOYfyl8uYlTGlJJCNhqXDb0RloG6thb37+mjHGaulxScH5KhY/lGii/VXX9ffvhjUy b8jUTUaP+JlAW6TIbUAJac1kvYAlGgiCw7qtJjh6J+YNti/mhy0iuO0wFYTwehcQoNPo 82cUWvRXexDSqmwet68jXQrTq0Ki+lnS7/V6lxO3RDeMeAhnsqmRFm54Q+lpkVqDGMQn Os2fpkTZ696RHsfizwBqahCluZJLkl9eiVMh4M8jvcPvVJy5iZoeb407NQm9/amd6dyW 4A== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0a-0016f401.pphosted.com with ESMTP id 2wxneasjc6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 17 Dec 2019 02:42:29 -0800 Received: from SC-EXCH03.marvell.com (10.93.176.83) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 17 Dec 2019 02:42:27 -0800 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 17 Dec 2019 02:42:27 -0800 Received: from localhost.localdomain (unknown [10.28.34.200]) by maili.marvell.com (Postfix) with ESMTP id AF3DD3F7045; Tue, 17 Dec 2019 02:42:26 -0800 (PST) From: Sunil Kumar Kori To: Bruce Richardson CC: , Harman Kalra , Sunil Kumar Kori Date: Tue, 17 Dec 2019 16:12:17 +0530 Message-ID: <20191217104218.18066-1-skori@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191216103948.22976-2-skori@marvell.com> References: <20191216103948.22976-2-skori@marvell.com> MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-17_02:2019-12-16,2019-12-17 signatures=0 Subject: [dpdk-dev] [PATCH v4 1/2] eal: add API to check if its interrupt context 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: Harman Kalra Added an API to check if current execution is in interrupt context. This will be helpful to handle nested interrupt cases. Signed-off-by: Harman Kalra Signed-off-by: Sunil Kumar Kori --- v3: - API Comment is updated as per man page. - Scope updated within the library/driver only. - Remove experimental tag v2: - Rebased patch on 19.11-rc4 lib/librte_eal/common/include/rte_eal_interrupts.h | 11 +++++++++++ lib/librte_eal/freebsd/eal/eal_interrupts.c | 5 +++++ lib/librte_eal/linux/eal/eal_interrupts.c | 5 +++++ 3 files changed, 21 insertions(+) diff --git a/lib/librte_eal/common/include/rte_eal_interrupts.h b/lib/librte_eal/common/include/rte_eal_interrupts.h index b370c0d26..19d1d45ab 100644 --- a/lib/librte_eal/common/include/rte_eal_interrupts.h +++ b/lib/librte_eal/common/include/rte_eal_interrupts.h @@ -220,4 +220,15 @@ rte_intr_allow_others(struct rte_intr_handle *intr_handle); int rte_intr_cap_multiple(struct rte_intr_handle *intr_handle); +/** + * @internal + * Check if currently executing in interrupt context + * + * @return + * - non zero in case of interrupt context + * - zero in case of process context + */ +int +rte_thread_is_intr(void); + #endif /* _RTE_EAL_INTERRUPTS_H_ */ diff --git a/lib/librte_eal/freebsd/eal/eal_interrupts.c b/lib/librte_eal/freebsd/eal/eal_interrupts.c index f6831b790..ce2a27b4a 100644 --- a/lib/librte_eal/freebsd/eal/eal_interrupts.c +++ b/lib/librte_eal/freebsd/eal/eal_interrupts.c @@ -671,3 +671,8 @@ rte_intr_free_epoll_fd(struct rte_intr_handle *intr_handle) { RTE_SET_USED(intr_handle); } + +int rte_thread_is_intr(void) +{ + return pthread_equal(intr_thread, pthread_self()); +} diff --git a/lib/librte_eal/linux/eal/eal_interrupts.c b/lib/librte_eal/linux/eal/eal_interrupts.c index 14ebb108c..cb8e10709 100644 --- a/lib/librte_eal/linux/eal/eal_interrupts.c +++ b/lib/librte_eal/linux/eal/eal_interrupts.c @@ -1488,3 +1488,8 @@ rte_intr_cap_multiple(struct rte_intr_handle *intr_handle) return 0; } + +int rte_thread_is_intr(void) +{ + return pthread_equal(intr_thread, pthread_self()); +} -- 2.17.1