From: Harry van Haaren <harry.van.haaren@intel.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, jerin.jacob@caviumnetworks.com,
keith.wiles@intel.com, bruce.richardson@intel.com,
Harry van Haaren <harry.van.haaren@intel.com>
Subject: [dpdk-dev] [PATCH v5 5/7] event/sw: enable SW PMD with service capability
Date: Tue, 11 Jul 2017 15:19:31 +0100 [thread overview]
Message-ID: <1499782773-12277-6-git-send-email-harry.van.haaren@intel.com> (raw)
In-Reply-To: <1499782773-12277-1-git-send-email-harry.van.haaren@intel.com>
This commit shows how easy it is to enable a specific
DPDK component with a service callback, in order to get
CPU cycles for it.
The beauty of this method is that the service is unaware
of how much CPU time it is getting - the application can
decide how to split and slice cores and map them to the
registered services.
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
v4:
- Include Acked by
v2:
- Remove #include <rte_cycles.h> (Jerin)
- Remove development prints (Jerin)
- Track service name in PMD
- Print warning if service does not have an lcore mapped (Jerin)
---
drivers/event/sw/sw_evdev.c | 32 ++++++++++++++++++++++++++++++++
drivers/event/sw/sw_evdev.h | 3 +++
2 files changed, 35 insertions(+)
diff --git a/drivers/event/sw/sw_evdev.c b/drivers/event/sw/sw_evdev.c
index 5b33bfd..9c534b7 100644
--- a/drivers/event/sw/sw_evdev.c
+++ b/drivers/event/sw/sw_evdev.c
@@ -39,6 +39,7 @@
#include <rte_ring.h>
#include <rte_errno.h>
#include <rte_event_ring.h>
+#include <rte_service_component.h>
#include "sw_evdev.h"
#include "iq_ring.h"
@@ -614,6 +615,13 @@ sw_start(struct rte_eventdev *dev)
{
unsigned int i, j;
struct sw_evdev *sw = sw_pmd_priv(dev);
+
+ /* check a service core is mapped to this service */
+ struct rte_service_spec *s = rte_service_get_by_name(sw->service_name);
+ if (!rte_service_is_running(s))
+ SW_LOG_ERR("Warning: No Service core enabled on service %s\n",
+ s->name);
+
/* check all ports are set up */
for (i = 0; i < sw->port_count; i++)
if (sw->ports[i].rx_worker_ring == NULL) {
@@ -716,6 +724,14 @@ set_credit_quanta(const char *key __rte_unused, const char *value, void *opaque)
return 0;
}
+
+static int32_t sw_sched_service_func(void *args)
+{
+ struct rte_eventdev *dev = args;
+ sw_event_schedule(dev);
+ return 0;
+}
+
static int
sw_probe(struct rte_vdev_device *vdev)
{
@@ -829,6 +845,22 @@ sw_probe(struct rte_vdev_device *vdev)
sw->credit_update_quanta = credit_quanta;
sw->sched_quanta = sched_quanta;
+ /* register service with EAL */
+ struct rte_service_spec service;
+ memset(&service, 0, sizeof(struct rte_service_spec));
+ snprintf(service.name, sizeof(service.name), "%s_service", name);
+ snprintf(sw->service_name, sizeof(sw->service_name), "%s_service",
+ name);
+ service.socket_id = socket_id;
+ service.callback = sw_sched_service_func;
+ service.callback_userdata = (void *)dev;
+
+ int32_t ret = rte_service_register(&service);
+ if (ret) {
+ SW_LOG_ERR("service register() failed");
+ return -ENOEXEC;
+ }
+
return 0;
}
diff --git a/drivers/event/sw/sw_evdev.h b/drivers/event/sw/sw_evdev.h
index 6ef03ce..71de3c1 100644
--- a/drivers/event/sw/sw_evdev.h
+++ b/drivers/event/sw/sw_evdev.h
@@ -59,6 +59,7 @@
#define EVENTDEV_NAME_SW_PMD event_sw
#define SW_PMD_NAME RTE_STR(event_sw)
+#define SW_PMD_NAME_MAX 64
#define SW_SCHED_TYPE_DIRECT (RTE_SCHED_TYPE_PARALLEL + 1)
@@ -276,6 +277,8 @@ struct sw_evdev {
/* store num stats and offset of the stats for each queue */
uint16_t xstats_count_per_qid[RTE_EVENT_MAX_QUEUES_PER_DEV];
uint16_t xstats_offset_for_qid[RTE_EVENT_MAX_QUEUES_PER_DEV];
+
+ char service_name[SW_PMD_NAME_MAX];
};
static inline struct sw_evdev *
--
2.7.4
next prev parent reply other threads:[~2017-07-11 14:19 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-23 9:06 [dpdk-dev] [PATCH 1/6] service cores: header and implementation Harry van Haaren
2017-06-23 9:06 ` [dpdk-dev] [PATCH 2/6] service cores: coremask parsing Harry van Haaren
2017-06-26 12:49 ` Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 3/6] service cores: EAL init changes Harry van Haaren
2017-06-26 12:55 ` Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 4/6] service cores: mark cores in lcore config as RTE Harry van Haaren
2017-06-23 9:06 ` [dpdk-dev] [PATCH 5/6] service core: add unit tests Harry van Haaren
2017-06-26 13:06 ` Jerin Jacob
2017-06-29 11:14 ` Van Haaren, Harry
2017-06-23 9:06 ` [dpdk-dev] [PATCH 6/6] service cores: enable event/sw with service Harry van Haaren
2017-06-26 13:46 ` Jerin Jacob
2017-06-29 11:15 ` Van Haaren, Harry
2017-06-26 11:59 ` [dpdk-dev] [PATCH 1/6] service cores: header and implementation Jerin Jacob
2017-06-29 11:13 ` Van Haaren, Harry
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 0/5] service cores: cover letter Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 1/5] service cores: header and implementation Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 2/5] service cores: EAL init changes Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 3/5] service cores: coremask parsing Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 4/5] service cores: add unit tests Harry van Haaren
2017-06-29 11:23 ` [dpdk-dev] [PATCH v2 5/5] service cores: enable event/sw with service Harry van Haaren
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 0/7] service cores: cover letter Harry van Haaren
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 1/7] service cores: header and implementation Harry van Haaren
2017-07-04 17:16 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 2/7] service cores: EAL init changes Harry van Haaren
2017-07-04 11:35 ` Jerin Jacob
2017-07-07 16:28 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 3/7] service cores: coremask parsing Harry van Haaren
2017-07-04 12:45 ` Jerin Jacob
2017-07-06 14:47 ` Van Haaren, Harry
2017-07-07 10:45 ` Jerin Jacob
2017-07-07 10:57 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 4/7] service cores: add unit tests Harry van Haaren
2017-07-04 11:14 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 5/7] service cores: enable event/sw with service Harry van Haaren
2017-07-04 10:52 ` Jerin Jacob
2017-07-07 16:28 ` Van Haaren, Harry
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 6/7] maintainers: claim service cores Harry van Haaren
2017-07-04 10:53 ` Jerin Jacob
2017-07-02 21:35 ` [dpdk-dev] [PATCH v3 7/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-02 22:16 ` Mcnamara, John
2017-07-04 10:56 ` Jerin Jacob
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 0/7] service cores: cover letter Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 1/7] service cores: header and implementation Harry van Haaren
2017-07-11 8:29 ` Jerin Jacob
2017-07-11 9:54 ` Thomas Monjalon
2017-07-11 12:32 ` Van Haaren, Harry
2017-07-11 12:44 ` Jerin Jacob
2017-07-11 12:49 ` Van Haaren, Harry
2017-07-11 14:10 ` Van Haaren, Harry
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 2/7] service cores: EAL init changes Harry van Haaren
2017-07-11 7:42 ` Jerin Jacob
2017-07-11 14:11 ` Van Haaren, Harry
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 3/7] service cores: coremask parsing Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 4/7] service cores: add unit tests Harry van Haaren
2017-07-11 8:12 ` Jerin Jacob
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 5/7] event/sw: enable SW PMD with service capability Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 6/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-07 16:41 ` [dpdk-dev] [PATCH v4 7/7] maintainers: claim service cores Harry van Haaren
2017-07-11 7:53 ` Jerin Jacob
2017-07-09 22:08 ` [dpdk-dev] [PATCH v4 0/7] service cores: cover letter Thomas Monjalon
2017-07-10 8:18 ` Van Haaren, Harry
2017-07-10 11:41 ` Jerin Jacob
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 " Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 1/7] service cores: header and implementation Harry van Haaren
2017-07-12 16:35 ` Jerin Jacob
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 2/7] service cores: EAL init changes Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 3/7] service cores: coremask parsing Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 4/7] service cores: add unit tests Harry van Haaren
2017-07-11 14:19 ` Harry van Haaren [this message]
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 6/7] doc: add service cores to doc and release notes Harry van Haaren
2017-07-11 14:19 ` [dpdk-dev] [PATCH v5 7/7] maintainers: claim service cores Harry van Haaren
2017-07-12 16:49 ` [dpdk-dev] [PATCH v5 0/7] service cores: cover letter Jerin Jacob
2017-07-16 19:25 ` Thomas Monjalon
2017-07-17 8:07 ` Van Haaren, Harry
2017-07-17 15:21 ` [dpdk-dev] [PATCH] service: add corelist to EAL arguments Harry van Haaren
2017-07-17 15:53 ` Ananyev, Konstantin
2017-07-17 15:58 ` Van Haaren, Harry
2017-07-17 16:10 ` Ananyev, Konstantin
2017-07-17 16:16 ` Van Haaren, Harry
2017-07-19 5:42 ` Thomas Monjalon
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