[PATCH 1/2] event/sw: fix missing flow ID init in selftest

[PATCH 1/2] event/sw: fix missing flow ID init in selftest

[Olivier Matz]

The issue is seen by unit tests:

> root@dpdk-VF-dut247:~/dpdk# MALLOC_PERTURB_=204 \
>   DPDK_TEST=eventdev_selftest_sw \
>   /root/dpdk/x86_64-native-linuxapp-gcc/app/test/dpdk-test -c 0xff
> (...)
> *** Running XStats ID Reset test...
> 12: 1761: qid_0_port_2_pinned_flows value , expected 1 got 7
> 1778: qid_0_port_2_pinned_flows value incorrect, expected 1 got 7
> ERROR - XStats ID Reset test FAILED.
> SW Eventdev Selftest Failed.
> Test Failed

The flow id is not set in the event, which results in an undefined
flow, whose value depends on what was previously in stack. Having
different flows for the packets makes the test to fail, since only one
flow is expected.

This only happens in -O3, where the same stack area is shared by the
event object and the address of the mbuf allocated in rte_gen_arp().

Fix this by properly initializing the flow id.

Bugzilla ID: 1101
Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 drivers/event/sw/sw_evdev_selftest.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/event/sw/sw_evdev_selftest.c b/drivers/event/sw/sw_evdev_selftest.c
index ed7ae6a685..4f18d66f36 100644
--- a/drivers/event/sw/sw_evdev_selftest.c
+++ b/drivers/event/sw/sw_evdev_selftest.c
@@ -1489,6 +1489,7 @@ xstats_id_reset_tests(struct test *t)
 			goto fail;
 		}
 		ev.queue_id = t->qid[i];
+		ev.flow_id = 0;
 		ev.op = RTE_EVENT_OP_NEW;
 		ev.mbuf = arp;
 		*rte_event_pmd_selftest_seqn(arp) = i;
-- 
2.30.2

[PATCH 2/2] event/sw: fix invalid log in selftest

[Olivier Matz]

The log should display the value, not the id.

Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 drivers/event/sw/sw_evdev_selftest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/event/sw/sw_evdev_selftest.c b/drivers/event/sw/sw_evdev_selftest.c
index 4f18d66f36..834681dbec 100644
--- a/drivers/event/sw/sw_evdev_selftest.c
+++ b/drivers/event/sw/sw_evdev_selftest.c
@@ -1644,8 +1644,8 @@ xstats_id_reset_tests(struct test *t)
 		}
 		if (val != port_expected[i]) {
 			printf("%d: %s value incorrect, expected %"PRIu64
-				" got %d\n", __LINE__, port_names[i],
-				port_expected[i], id);
+				" got %"PRIu64"\n", __LINE__, port_names[i],
+				port_expected[i], val);
 			failed = 1;
 		}
 		/* reset to zero */
-- 
2.30.2

RE: [PATCH 1/2] event/sw: fix missing flow ID init in selftest

[Morten Brørup]

> From: Olivier Matz [mailto:olivier.matz@6wind.com]
> Sent: Friday, 14 October 2022 22.37
> 
> The issue is seen by unit tests:
> 
> > root@dpdk-VF-dut247:~/dpdk# MALLOC_PERTURB_=204 \
> >   DPDK_TEST=eventdev_selftest_sw \
> >   /root/dpdk/x86_64-native-linuxapp-gcc/app/test/dpdk-test -c 0xff
> > (...)
> > *** Running XStats ID Reset test...
> > 12: 1761: qid_0_port_2_pinned_flows value , expected 1 got 7
> > 1778: qid_0_port_2_pinned_flows value incorrect, expected 1 got 7
> > ERROR - XStats ID Reset test FAILED.
> > SW Eventdev Selftest Failed.
> > Test Failed
> 
> The flow id is not set in the event, which results in an undefined
> flow, whose value depends on what was previously in stack. Having
> different flows for the packets makes the test to fail, since only one
> flow is expected.
> 
> This only happens in -O3, where the same stack area is shared by the
> event object and the address of the mbuf allocated in rte_gen_arp().
> 
> Fix this by properly initializing the flow id.
> 
> Bugzilla ID: 1101
> Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> ---

Series-Acked-by: Morten Brørup <mb@smartsharesystems.com>

Re: [PATCH 1/2] event/sw: fix missing flow ID init in selftest

[David Marchand]

On Fri, Oct 14, 2022 at 10:38 PM Olivier Matz <olivier.matz@6wind.com> wrote:
>
> The issue is seen by unit tests:
>
> > root@dpdk-VF-dut247:~/dpdk# MALLOC_PERTURB_=204 \
> >   DPDK_TEST=eventdev_selftest_sw \
> >   /root/dpdk/x86_64-native-linuxapp-gcc/app/test/dpdk-test -c 0xff
> > (...)
> > *** Running XStats ID Reset test...
> > 12: 1761: qid_0_port_2_pinned_flows value , expected 1 got 7
> > 1778: qid_0_port_2_pinned_flows value incorrect, expected 1 got 7
> > ERROR - XStats ID Reset test FAILED.
> > SW Eventdev Selftest Failed.
> > Test Failed
>
> The flow id is not set in the event, which results in an undefined
> flow, whose value depends on what was previously in stack. Having
> different flows for the packets makes the test to fail, since only one
> flow is expected.
>
> This only happens in -O3, where the same stack area is shared by the
> event object and the address of the mbuf allocated in rte_gen_arp().

Good catch.
That's scary...


>
> Fix this by properly initializing the flow id.
>
> Bugzilla ID: 1101
> Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
> Cc: stable@dpdk.org
>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

Reviewed-by: David Marchand <david.marchand@redhat.com>


-- 
David Marchand

Re: [PATCH 2/2] event/sw: fix invalid log in selftest

[Jerin Jacob]

On Sat, Oct 15, 2022 at 2:08 AM Olivier Matz <olivier.matz@6wind.com> wrote:
>
> The log should display the value, not the id.
>
> Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
> Cc: stable@dpdk.org
>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> ---
>  drivers/event/sw/sw_evdev_selftest.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/event/sw/sw_evdev_selftest.c b/drivers/event/sw/sw_evdev_selftest.c
> index 4f18d66f36..834681dbec 100644
> --- a/drivers/event/sw/sw_evdev_selftest.c
> +++ b/drivers/event/sw/sw_evdev_selftest.c
> @@ -1644,8 +1644,8 @@ xstats_id_reset_tests(struct test *t)
>                 }
>                 if (val != port_expected[i]) {
>                         printf("%d: %s value incorrect, expected %"PRIu64
> -                               " got %d\n", __LINE__, port_names[i],
> -                               port_expected[i], id);
> +                               " got %"PRIu64"\n", __LINE__, port_names[i],

There was merge conflict due to "eventdev: increase xstats ID width to 64 bits".
I have fixed and Series applied to dpdk-next-net-eventdev/for-main. Thanks



> +                               port_expected[i], val);
>                         failed = 1;
>                 }
>                 /* reset to zero */
> --
> 2.30.2
>