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From: Sunil Kumar Kori <skori@marvell.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: <dev@dpdk.org>, Harman Kalra <hkalra@marvell.com>,
	Sunil Kumar Kori <skori@marvell.com>
Subject: [dpdk-dev] [PATCH v3 1/2] eal: add API to check if its interrupt context
Date: Mon, 16 Dec 2019 16:09:47 +0530
Message-ID: <20191216103948.22976-1-skori@marvell.com> (raw)
In-Reply-To: <20191127102222.31940-1-skori@marvell.com>

From: Harman Kalra <hkalra@marvell.com>

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 <hkalra@marvell.com>
Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
---
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


  parent reply index

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25 11:35 [dpdk-dev] [PATCH 1/5] drivers/octeontx2: allow experimental symbols Sunil Kumar Kori
2019-11-25 11:35 ` [dpdk-dev] [PATCH v3 2/5] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-11-25 11:35 ` [dpdk-dev] [PATCH 3/5] common/octeontx2: add interrupt offset to mbox structure Sunil Kumar Kori
2019-11-25 11:35 ` [dpdk-dev] [PATCH 4/5] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-11-25 11:35 ` [dpdk-dev] [PATCH 5/5] common/octeontx2: enhancing mbox APIs to get response Sunil Kumar Kori
2019-11-26  6:15 ` [dpdk-dev] [PATCH v2 1/5] drivers/octeontx2: allow experimental symbols Sunil Kumar Kori
2019-11-26 16:21   ` Thomas Monjalon
2019-11-27  8:34     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-11-27  9:42       ` Thomas Monjalon
2019-11-27 10:22   ` [dpdk-dev] [PATCH v2 1/4] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-11-27 10:22     ` [dpdk-dev] [PATCH v2 2/4] common/octeontx2: add interrupt offset to mbox structure Sunil Kumar Kori
2019-11-27 10:22     ` [dpdk-dev] [PATCH v2 3/4] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-11-27 10:22     ` [dpdk-dev] [PATCH v2 4/4] drivers/octeontx2: enhancing mbox APIs to get response Sunil Kumar Kori
2019-11-28  0:03     ` [dpdk-dev] [PATCH v2 1/4] eal: add API to check if its interrupt context Stephen Hemminger
2019-11-28  8:10       ` [dpdk-dev] [EXT] " Harman Kalra
2019-11-28 16:45         ` Stephen Hemminger
2019-12-04 16:23           ` Harman Kalra
2019-12-16 10:39     ` Sunil Kumar Kori [this message]
2019-12-16 10:39       ` [dpdk-dev] [PATCH v3 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-12-17  8:02         ` Gavin Hu (Arm Technology China)
2019-12-17 11:14           ` Jerin Jacob
2019-12-18  2:45             ` Gavin Hu
2019-12-17 10:42         ` [dpdk-dev] [PATCH v4 1/2] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-12-17 10:42           ` [dpdk-dev] [PATCH v4 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-12-17 16:53         ` [dpdk-dev] [PATCH v4 1/2] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-12-17 16:53           ` [dpdk-dev] [PATCH v4 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-12-18  2:54             ` Gavin Hu
2019-12-18  7:07           ` [dpdk-dev] [PATCH v5 1/2] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-12-18  7:07             ` [dpdk-dev] [PATCH v5 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2019-12-20  6:56               ` [dpdk-dev] [PATCH v6 1/2] eal: add API to check if its interrupt context Sunil Kumar Kori
2019-12-20  6:56                 ` [dpdk-dev] [PATCH v6 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2020-01-14  8:41                   ` Jerin Jacob
2020-01-14 10:17                     ` Thomas Monjalon
2020-01-14  9:04                   ` [dpdk-dev] [PATCH v7 1/2] eal: add API to check if its interrupt context Sunil Kumar Kori
2020-01-14  9:04                     ` [dpdk-dev] [PATCH v7 2/2] common/octeontx2: add polling based response mbox message Sunil Kumar Kori
2020-01-21  8:37                       ` Sunil Kumar Kori
2020-02-06 15:35                     ` [dpdk-dev] [PATCH v7 1/2] eal: add API to check if its interrupt context David Marchand
2020-01-14  8:37                 ` [dpdk-dev] [PATCH v6 " Jerin Jacob

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