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examples/l2fwd-crypto: limit number of sessions

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Calculate the number of sessions required for the application,
knowing that there is only one session required per device.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
This commit is contained in:
Pablo de Lara 2018-07-05 03:07:54 +01:00
parent 7ac34bce58
commit e3bcb99a5e
2 changed files with 26 additions and 2 deletions
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6
examples/l2fwd-crypto/Makefile
View File

@ -51,5 +51,11 @@ include $(RTE_SDK)/mk/rte.vars.mk
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
ifeq ($(CONFIG_RTE_LIBRTE_PMD_CRYPTO_SCHEDULER),y)
LDLIBS += -lrte_pmd_crypto_scheduler
endif
endif
include $(RTE_SDK)/mk/rte.extapp.mk
endif

22
examples/l2fwd-crypto/main.c
View File

@ -42,6 +42,9 @@
#include <rte_prefetch.h>
#include <rte_random.h>
#include <rte_hexdump.h>
#ifdef RTE_LIBRTE_PMD_CRYPTO_SCHEDULER
#include <rte_cryptodev_scheduler.h>
#endif
enum cdev_type {
CDEV_TYPE_ANY,
@ -59,7 +62,6 @@ enum cdev_type {
#define MAX_AAD_SIZE 65535
#define MAX_PKT_BURST 32
#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
#define MAX_SESSIONS 32
#define SESSION_POOL_CACHE_SIZE 0
#define MAXIMUM_IV_LENGTH 16
@ -1972,6 +1974,7 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
unsigned int cdev_id, cdev_count, enabled_cdev_count = 0;
const struct rte_cryptodev_capabilities *cap;
unsigned int sess_sz, max_sess_sz = 0;
uint32_t sessions_needed = 0;
int retval;
cdev_count = rte_cryptodev_count();
@ -2009,6 +2012,21 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
rte_cryptodev_info_get(cdev_id, &dev_info);
/*
* Two sessions objects are required for each session
* (one for the header, one for the private data)
*/
if (!strcmp(dev_info.driver_name, "crypto_scheduler")) {
#ifdef RTE_LIBRTE_PMD_CRYPTO_SCHEDULER
uint32_t nb_slaves =
rte_cryptodev_scheduler_slaves_get(cdev_id,
NULL);
sessions_needed = 2 * enabled_cdev_count * nb_slaves;
#endif
} else
sessions_needed = 2 * enabled_cdev_count;
if (session_pool_socket[socket_id] == NULL) {
char mp_name[RTE_MEMPOOL_NAMESIZE];
struct rte_mempool *sess_mp;
@ -2021,7 +2039,7 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
* device private data
*/
sess_mp = rte_mempool_create(mp_name,
MAX_SESSIONS * 2,
sessions_needed,
max_sess_sz,
SESSION_POOL_CACHE_SIZE,
0, NULL, NULL, NULL,