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cryptodev: define value for unlimited sessions

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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.guarch@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
This commit is contained in:
Pablo de Lara 2018-07-05 03:07:57 +01:00
parent 25b05a1c80
commit 2925e0c190
5 changed files with 12 additions and 5 deletions
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2
app/test-crypto-perf/main.c
View File

@ -172,7 +172,7 @@ 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);

2
doc/guides/rel_notes/release_18_08.rst
View File

@ -84,6 +84,8 @@ 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.
* compressdev: Feature flag ``RTE_COMP_FF_MBUF_SCATTER_GATHER`` is
replaced with the following more explicit flags:

2
examples/ipsec-secgw/ipsec-secgw.c
View File

@ -1440,7 +1440,7 @@ 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);

5
lib/librte_cryptodev/rte_cryptodev.h
View File

@ -349,7 +349,10 @@ 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;
};

6
test/test/test_cryptodev.c
View File

@ -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",