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From: Pablo de Lara <pablo.de.lara.guarch@intel.com>
To: declan.doherty@intel.com, akhil.goyal@nxp.com,
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Cc: dev@dpdk.org,
Pablo de Lara <pablo.de.lara.guarch@intel.com>
Date: Thu, 28 Jun 2018 01:52:53 +0100
Message-Id: <20180628005304.26544-6-pablo.de.lara.guarch@intel.com>
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<20180628005304.26544-1-pablo.de.lara.guarch@intel.com>
Subject: [dpdk-dev] [PATCH v3 05/16] 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>
---
examples/l2fwd-crypto/main.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 4bca87b19..e8384b0c1 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -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
@@ -2010,6 +2012,19 @@ 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)
+ */
+ uint32_t sessions_needed = 2 * enabled_cdev_count;
+#ifdef RTE_LIBRTE_PMD_CRYPTO_SCHEDULER
+ if (!strcmp(dev_info.driver_name, "crypto_scheduler")) {
+ uint32_t nb_slaves =
+ rte_cryptodev_scheduler_slaves_get(cdev_id,
+ NULL);
+
+ sessions_needed = 2 * enabled_cdev_count * nb_slaves;
+ }
+#endif
if (session_pool_socket[socket_id] == NULL) {
char mp_name[RTE_MEMPOOL_NAMESIZE];
struct rte_mempool *sess_mp;
@@ -2022,7 +2037,7 @@ 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,
--
2.14.4