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bbdev: use C11 atomics for device processing counter

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Since rte_atomicXX APIs are not allowed to be used, use C11 atomic builtins
for device processing counter.

Signed-off-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Nicolas Chautru <nicolas.chautru@intel.com>
This commit is contained in:
Phil Yang 2020-09-24 13:39:26 +08:00 committed by David Marchand
parent c5d6c47257
commit b5bafde26c
2 changed files with 4 additions and 5 deletions
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5
lib/librte_bbdev/rte_bbdev.c
View File

@ -210,7 +210,7 @@ rte_bbdev_allocate(const char *name)
return NULL;
}
rte_atomic16_inc(&bbdev->data->process_cnt);
__atomic_add_fetch(&bbdev->data->process_cnt, 1, __ATOMIC_RELAXED);
bbdev->data->dev_id = dev_id;
bbdev->state = RTE_BBDEV_INITIALIZED;
@ -252,7 +252,8 @@ rte_bbdev_release(struct rte_bbdev *bbdev)
}
/* clear shared BBDev Data if no process is using the device anymore */
if (rte_atomic16_dec_and_test(&bbdev->data->process_cnt))
if (__atomic_sub_fetch(&bbdev->data->process_cnt, 1,
__ATOMIC_RELAXED) == 0)
memset(bbdev->data, 0, sizeof(*bbdev->data));
memset(bbdev, 0, sizeof(*bbdev));

4
lib/librte_bbdev/rte_bbdev.h
View File

@ -33,7 +33,6 @@ extern "C" {
#include <string.h>
#include <rte_compat.h>
#include <rte_atomic.h>
#include <rte_bus.h>
#include <rte_cpuflags.h>
#include <rte_memory.h>
@ -426,8 +425,7 @@ struct rte_bbdev_data {
uint16_t dev_id; /**< Device ID */
int socket_id; /**< NUMA socket that device is on */
bool started; /**< Device run-time state */
/** Counter of processes using the device */
rte_atomic16_t process_cnt;
uint16_t process_cnt; /** Counter of processes using the device */
};
/* Forward declarations */