[dts] [PATCH V1]tests/mac_filter: fix FVL stats issue

[Liu, Yong]

Yingya,
Some comments are inline.

Thanks,
Marvin

> -----Original Message-----
> From: dts [mailto:dts-bounces at dpdk.org] On Behalf Of han,yingya
> Sent: Tuesday, March 20, 2018 12:41 PM
> To: dts at dpdk.org
> Cc: Han, YingyaX <yingyax.han at intel.com>
> Subject: [dts] [PATCH V1]tests/mac_filter: fix FVL stats issue
> 
> In testpmd show port stats command is to read FVL register, and it's all
> packets of FVL.
> Contrast to FLV , Niantic's stats, tx/rx packets , don't include packets
> filtered.
> It's a difference between Niantic and FLV.
> Signed-off-by: han,yingya <yingyax.han at intel.com>
> ---
>  tests/TestSuite_mac_filter.py | 35 ++++++++++++++++-------------------
>  1 file changed, 16 insertions(+), 19 deletions(-)
> 
> diff --git a/tests/TestSuite_mac_filter.py b/tests/TestSuite_mac_filter.py
> index 1c58b87..a0c890d 100644
> --- a/tests/TestSuite_mac_filter.py
> +++ b/tests/TestSuite_mac_filter.py
> @@ -107,48 +107,45 @@ class TestWhitelist(TestCase):
> 
>          # send one packet with the portid MAC address
>          self.whitelist_send_packet(portid, self.dest)
> -        out = self.dut.send_expect("show port stats %d" % portid,
> "testpmd> ")
> -        cur_rxpkt = utils.regexp(out, "RX-packets: ([0-9]+)")
> +        out = self.dut.get_session_output()
> +        cur_rxpkt = utils.regexp(out, "received ([0-9]+) packets")

Checking packet number by Rx only verbose output is one alternative way to get receive number of packets.
You'd better add some comments about why here not use "port stats".

>          # check the packet increase
>          self.verify(int(cur_rxpkt) == int(pre_rxpkt) +
> self.frames_to_send,
>                      "Packet has not been received on default address")
>          # send one packet to a different MAC address
>          # new_mac = self.dut.get_mac_address(portid)
>          self.whitelist_send_packet(portid, fake_mac_addr)
> -
> +        out = self.dut.get_session_output()
>          pre_rxpkt = cur_rxpkt
> -        out = self.dut.send_expect("show port stats %d" % portid,
> "testpmd> ")
> -        cur_rxpkt = utils.regexp(out, "RX-packets: ([0-9]+)")
> -
> -        # check the packet DO NOT increase
> -        self.verify(int(cur_rxpkt) == int(pre_rxpkt),
> +        if not out:
> +            cur_rxpkt = 0
> +            # check the packet DO NOT increase
> +            self.verify(int(cur_rxpkt) == int(pre_rxpkt) -
> self.frames_to_send,
>                      "Packet has been received on a new MAC address that
> has not been added yet")


I think here just need to check no packet is arrived. Only need to check no "received" message in output is enough. 

>          # add the different MAC address
> -        out = self.dut.send_expect("mac_addr add %d" % portid + " %s" %
> fake_mac_addr, "testpmd>")
> +        self.dut.send_expect("mac_addr add %d" % portid + " %s" %
> fake_mac_addr, "testpmd>")
> 
>          # send again one packet to a different MAC address
>          self.whitelist_send_packet(portid, fake_mac_addr)
> -
> +        out = self.dut.get_session_output()
>          pre_rxpkt = cur_rxpkt
> -        out = self.dut.send_expect("show port stats %d" % portid,
> "testpmd> ")
> -        cur_rxpkt = utils.regexp(out, "RX-packets: ([0-9]+)")
> +        cur_rxpkt = utils.regexp(out, "received ([0-9]+) packets")
> 
>          # check the packet increase
>          self.verify(int(cur_rxpkt) == int(pre_rxpkt) +
> self.frames_to_send,
>                      "Packet has not been received on a new MAC address
> that has been added to the port")
> 
>          # remove the fake MAC address
> -        out = self.dut.send_expect("mac_addr remove %d" % portid + " %s" %
> fake_mac_addr, "testpmd>")
> +        self.dut.send_expect("mac_addr remove %d" % portid + " %s" %
> fake_mac_addr, "testpmd>")
> 
>          # send again one packet to a different MAC address
>          self.whitelist_send_packet(portid, fake_mac_addr)
> -
> +        out = self.dut.get_session_output()
>          pre_rxpkt = cur_rxpkt
> -        out = self.dut.send_expect("show port stats %d" % portid,
> "testpmd> ")
> -        cur_rxpkt = utils.regexp(out, "RX-packets: ([0-9]+)")
> -
> -        # check the packet increase
> -        self.verify(int(cur_rxpkt) == int(pre_rxpkt),
> +        if not out:
> +            cur_rxpkt = 0
> +            # check the packet increase
> +            self.verify(int(cur_rxpkt) == int(pre_rxpkt) -
> self.frames_to_send,

Same comment as previous one.

>                      "Packet has been received on a new MAC address that
> has been removed from the port")
>          self.dut.send_expect("stop", "testpmd> ")
> 
> --
> 1.9.3