diff mbox series

[V1,1/2] tests/smoke_base modify ixgbe support vf jumbo verify.

Message ID 20220509074639.4135273-1-weiyuanx.li@intel.com (mailing list archive)
State Superseded
Headers show
Series [V1,1/2] tests/smoke_base modify ixgbe support vf jumbo verify. | expand

Commit Message

Li, WeiyuanX May 9, 2022, 7:46 a.m. UTC
the ixgbe NIC only supports one global MTU per physical port.
So when the user sets different MTUs on PF and VF ports in one physical port,
the real MTU for all these PF and VF ports is the largest value set.
This behavior is based on the kernel driver behavior.

So, modify script supports the verification packet sent is greater than PF MTU for ixgbe driver.

Signed-off-by: Weiyuan Li <weiyuanx.li@intel.com>
---
 tests/smoke_base.py | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

Comments

Peng, Yuan May 10, 2022, 3:31 a.m. UTC | #1
Acked-by: Peng, Yuan <yuan.peng@intel.com>

-----Original Message-----
From: Li, WeiyuanX <weiyuanx.li@intel.com> 
Sent: Monday, May 9, 2022 3:47 PM
To: dts@dpdk.org; Peng, Yuan <yuan.peng@intel.com>
Cc: Li, WeiyuanX <weiyuanx.li@intel.com>
Subject: [dts][PATCH V1 1/2] tests/smoke_base modify ixgbe support vf jumbo verify.

the ixgbe NIC only supports one global MTU per physical port.
So when the user sets different MTUs on PF and VF ports in one physical port, the real MTU for all these PF and VF ports is the largest value set.
This behavior is based on the kernel driver behavior.

So, modify script supports the verification packet sent is greater than PF MTU for ixgbe driver.

Signed-off-by: Weiyuan Li <weiyuanx.li@intel.com>
diff mbox series

Patch

diff --git a/tests/smoke_base.py b/tests/smoke_base.py
index bb49c784..4b3fe9eb 100644
--- a/tests/smoke_base.py
+++ b/tests/smoke_base.py
@@ -51,12 +51,23 @@  class SmokeTest(object):
             setattr(self, name, kwargs[name])
 
     def send_pkg_return_stats(
-        self, pkt_size=COMMON_PKT_LEN, l3_src=IPV4_SRC, l3_dst=IPV4_DST, rss=False
+        self, pkt_size=COMMON_PKT_LEN, l3_src=IPV4_SRC, l3_dst=IPV4_DST, rss=False, driver=None
     ):
         self.test_case.dut.send_expect("clear port stats all", "testpmd> ")
         l3_len = pkt_size - HEADER_SIZE["eth"]
         payload = pkt_size - HEADER_SIZE["eth"] - HEADER_SIZE["ip"]
         hash_flag = False
+        # For ixgbe, jumbo frame is not supported. MTU is determined by pf.
+        # so, testpmd max-pkt-len=9000 don't work.
+        # Although the user can set the MTU separately on PF and VF ports,
+        # the ixgbe NIC only supports one global MTU per physical port.
+        # So when the user sets different MTUs on PF and VF ports in one physical port,
+        # the real MTU for all these PF and VF ports is the largest value set.
+        # This behavior is based on the kernel driver behavior.
+        # The packet sent is greater than PF MTU 9000, the payload equal to 8083,
+        # PF received packet MTU = payload + IP, 8083 + 20 = 9001
+        if driver == 'ixgbe':
+            payload = pkt_size - HEADER_SIZE["eth"]
         if rss:
             pkt = []
             # generate PACKAGE_COUNT count package, the IP dst is random.
@@ -113,14 +124,14 @@  class SmokeTest(object):
             return queues[0], stats
         return None, stats
 
-    def check_jumbo_frames(self):
+    def check_jumbo_frames(self, kdriver=None):
         """
         The packet total size include ethernet header, ip header, and payload.
         ethernet header length is 18 bytes, ip standard header length is 20 bytes.
         The packet forwarded failed.
         """
         pkg_size = JUMBO_FRAME_LENGTH + 1
-        queues, stats = self.send_pkg_return_stats(pkg_size)
+        queues, stats = self.send_pkg_return_stats(pkg_size, driver=kdriver)
         if 1 != stats["RX-errors"] and 0 != stats["TX-packets"]:
             self.test_case.logger.info(
                 "jumbo frame: The RX[{}] or TX[{}] packet error".format(