Currently, the info structure contains the maximum number
of sessions that a device can manage.
This field was useful when the session mempool was created inside
each device, but now it is created at the application level.
Most PMDs do not have a limitation on the sessions managed,
but a few do, therefore this field must remain in the structure.
However, a new value, 0, can be used to indicate that
a device does not have an actual maximum of sessions.
Signed-off-by: Pablo de Lara <pablo.de.lara.gua...@intel.com>
---
app/test-crypto-perf/main.c | 2 +-
doc/guides/rel_notes/release_18_08.rst | 2 ++
examples/ipsec-secgw/ipsec-secgw.c | 2 +-
lib/librte_cryptodev/rte_cryptodev.h | 5 ++++-
test/test/test_cryptodev.c | 6 ++++--
5 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/app/test-crypto-perf/main.c b/app/test-crypto-perf/main.c
index b02d3f597..87aaba0ce 100644
--- a/app/test-crypto-perf/main.c
+++ b/app/test-crypto-perf/main.c
@@ -169,7 +169,7 @@ cperf_initialize_cryptodev(struct cperf_options *opts,
uint8_t *enabled_cdevs,
* A single session is required per queue pair
* in each device
*/
- if (dev_max_nb_sess < opts->nb_qps) {
+ if (dev_max_nb_sess != 0 && dev_max_nb_sess < opts->nb_qps) {
RTE_LOG(ERR, USER1,
"Device does not support at least "
"%u sessions\n", opts->nb_qps);
diff --git a/doc/guides/rel_notes/release_18_08.rst
b/doc/guides/rel_notes/release_18_08.rst
index 6bf53dc31..2b994ee78 100644
--- a/doc/guides/rel_notes/release_18_08.rst
+++ b/doc/guides/rel_notes/release_18_08.rst
@@ -62,6 +62,8 @@ API Changes
* cryptodev: In struct ``struct rte_cryptodev_info``, field ``rte_pci_device
*pci_dev``
has been replaced with field ``struct rte_device *device``.
+ Value 0 is accepted in ``sym.max_nb_sessions``, meaning that a device
+ supports an unlimited number of sessions.
ABI Changes
diff --git a/examples/ipsec-secgw/ipsec-secgw.c
b/examples/ipsec-secgw/ipsec-secgw.c
index 2582dcb6e..dacf323c9 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -1441,7 +1441,7 @@ cryptodevs_init(void)
dev_conf.nb_queue_pairs = qp;
uint32_t dev_max_sess = cdev_info.sym.max_nb_sessions;
- if (dev_max_sess < (CDEV_MP_NB_OBJS / 2))
+ if (dev_max_sess != 0 && dev_max_sess < (CDEV_MP_NB_OBJS / 2))
rte_exit(EXIT_FAILURE,
"Device does not support at least %u "
"sessions", CDEV_MP_NB_OBJS / 2);
diff --git a/lib/librte_cryptodev/rte_cryptodev.h
b/lib/librte_cryptodev/rte_cryptodev.h
index a30790b84..8c1a4ad6f 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -357,7 +357,10 @@ struct rte_cryptodev_info {
struct {
unsigned max_nb_sessions;
- /**< Maximum number of sessions supported by device. */
+ /**< Maximum number of sessions supported by device.
+ * If 0, the device does not have any limitation in
+ * number of sessions that can be used.
+ */
} sym;
};
diff --git a/test/test/test_cryptodev.c b/test/test/test_cryptodev.c
index 5c906cfae..73aadaced 100644
--- a/test/test/test_cryptodev.c
+++ b/test/test/test_cryptodev.c
@@ -436,7 +436,8 @@ testsuite_setup(void)
* Create mempool with maximum number of sessions * 2,
* to include the session headers
*/
- if (info.sym.max_nb_sessions < MAX_NB_SESSIONS) {
+ if (info.sym.max_nb_sessions != 0 &&
+ info.sym.max_nb_sessions < MAX_NB_SESSIONS) {
RTE_LOG(ERR, USER1, "Device does not support "
"at least %u sessions\n",
MAX_NB_SESSIONS);
@@ -8546,7 +8547,8 @@ test_scheduler_attach_slave_op(void)
unsigned int session_size =
rte_cryptodev_sym_get_private_session_size(i);
- if (info.sym.max_nb_sessions < MAX_NB_SESSIONS) {
+ if (info.sym.max_nb_sessions != 0 &&
+ info.sym.max_nb_sessions < MAX_NB_SESSIONS) {
RTE_LOG(ERR, USER1,
"Device does not support "
"at least %u sessions\n",
--
2.14.4
