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From: <pbhagavatula@marvell.com>
To: <jerinj@marvell.com>
CC: <konstantin.ananyev@intel.com>, <dev@dpdk.org>, Pavan Nikhilesh
<pbhagavatula@marvell.com>
Date: Tue, 24 Aug 2021 01:10:07 +0530
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Subject: [dpdk-dev] [RFC 03/15] eventdev: move eventdevs globals to hugepage
mem
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From: Pavan Nikhilesh <pbhagavatula@marvell.com>
Move the global struct eventdevs to hugepage memory, allocate
memory on the first pmd allocate request for both primary and
secondary process.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
lib/eventdev/rte_eventdev.c | 30 ++++++++++++++++++++----------
1 file changed, 20 insertions(+), 10 deletions(-)
diff --git a/lib/eventdev/rte_eventdev.c b/lib/eventdev/rte_eventdev.c
index 594dd5e759..21c5c55086 100644
--- a/lib/eventdev/rte_eventdev.c
+++ b/lib/eventdev/rte_eventdev.c
@@ -38,9 +38,7 @@
#include "eventdev_pmd.h"
#include "rte_eventdev_trace.h"
-static struct rte_eventdev rte_event_devices[RTE_EVENT_MAX_DEVS];
-
-struct rte_eventdev *rte_eventdevs = rte_event_devices;
+struct rte_eventdev *rte_eventdevs;
static struct rte_eventdev_global eventdev_globals = {
.nb_devs = 0
@@ -64,13 +62,13 @@ rte_event_dev_get_dev_id(const char *name)
return -EINVAL;
for (i = 0; i < eventdev_globals.nb_devs; i++) {
- cmp = (strncmp(rte_event_devices[i].data->name, name,
- RTE_EVENTDEV_NAME_MAX_LEN) == 0) ||
- (rte_event_devices[i].dev ? (strncmp(
- rte_event_devices[i].dev->driver->name, name,
- RTE_EVENTDEV_NAME_MAX_LEN) == 0) : 0);
- if (cmp && (rte_event_devices[i].attached ==
- RTE_EVENTDEV_ATTACHED))
+ cmp = (strncmp(rte_eventdevs[i].data->name, name,
+ RTE_EVENTDEV_NAME_MAX_LEN) == 0) ||
+ (rte_eventdevs[i].dev ?
+ (strncmp(rte_eventdevs[i].dev->driver->name,
+ name, RTE_EVENTDEV_NAME_MAX_LEN) == 0) :
+ 0);
+ if (cmp && (rte_eventdevs[i].attached == RTE_EVENTDEV_ATTACHED))
return i;
}
return -ENODEV;
@@ -1469,6 +1467,18 @@ rte_event_pmd_allocate(const char *name, int socket_id)
struct rte_eventdev *eventdev;
uint8_t dev_id;
+ if (rte_eventdevs == NULL) {
+ rte_eventdevs = rte_zmalloc("Eventdev",
+ sizeof(struct rte_eventdev) *
+ RTE_EVENT_MAX_DEVS,
+ RTE_CACHE_LINE_SIZE);
+ if (rte_eventdevs == NULL) {
+ RTE_EDEV_LOG_ERR(
+ "Unable to allocate memory for event devices");
+ return NULL;
+ }
+ }
+
if (rte_event_pmd_get_named_dev(name) != NULL) {
RTE_EDEV_LOG_ERR("Event device with name %s already "
"allocated!", name);
--
2.17.1