Re: [dpdk-dev] [PATCH v3] Test/crypto: check valid test_stats before running test

[Akhil Goyal <akhil.goyal@nxp.com>]

Hi Konstantin,
> 
> > Test_stats is an optional cryptodev op and if it is not defined by the
> > PMD, it should not run the test cases for it.
> >
> > Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>
> > ---
> >  app/test/test_cryptodev.c | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
> > index c624018ee..1ad650675 100644
> > --- a/app/test/test_cryptodev.c
> > +++ b/app/test/test_cryptodev.c
> > @@ -8801,6 +8801,10 @@ test_stats(void)
> >  	if (gbl_action_type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO)
> >  		return -ENOTSUP;
> >
> > +	dev = &rte_cryptodevs[ts_params->valid_devs[0]];
> > +	if (dev->dev_ops->stats_get == 0)
> > +		return -ENOTSUP;
> > +
> >
> 
> rte_cryptodevs[] and dev_ops supposed to be internal for cryptodev
> (though in practice they are not).
> It is not a good practice for the app to access them directly.
> 

Yes, you are absolutely correct. The test case is not properly written.
App should not access the dev_ops directly.

Apeksha,
You can do the following change to fix this.

diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
index 1ed2df898..aa14d42fa 100644
--- a/app/test/test_cryptodev.c
+++ b/app/test/test_cryptodev.c
@@ -8751,7 +8751,6 @@ test_stats(void)
        struct crypto_testsuite_params *ts_params = &testsuite_params;
        struct rte_cryptodev_stats stats;
        struct rte_cryptodev *dev;
-       cryptodev_stats_get_t temp_pfn;

        if (gbl_action_type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO)
                return -ENOTSUP;
@@ -8769,19 +8768,16 @@ test_stats(void)
                        &cap_idx) == NULL)
                return -ENOTSUP;

+       if (rte_cryptodev_stats_get(ts_params->valid_devs[0], &stats)
+                       == -ENOTSUP)
+               return -ENOTSUP;
+
        rte_cryptodev_stats_reset(ts_params->valid_devs[0]);
        TEST_ASSERT((rte_cryptodev_stats_get(ts_params->valid_devs[0] + 600,
                        &stats) == -ENODEV),
                "rte_cryptodev_stats_get invalid dev failed");
        TEST_ASSERT((rte_cryptodev_stats_get(ts_params->valid_devs[0], 0) != 0),
                "rte_cryptodev_stats_get invalid Param failed");
-       dev = &rte_cryptodevs[ts_params->valid_devs[0]];
-       temp_pfn = dev->dev_ops->stats_get;
-       dev->dev_ops->stats_get = (cryptodev_stats_get_t)0;
-       TEST_ASSERT((rte_cryptodev_stats_get(ts_params->valid_devs[0], &stats)
-                       == -ENOTSUP),
-               "rte_cryptodev_stats_get invalid Param failed");
-       dev->dev_ops->stats_get = temp_pfn;

        /* Test expected values */
        ut_setup();