selftests: drv-net: xdp: use variants for qstat tests

Use just-added ksft variants for XDP qstat tests.

While at it correct the number of packets, we're sending
1000 packets now.

Reviewed-by: Petr Machata <[e-mail]>
Reviewed-by: Willem de Bruijn <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

tools/testing/selftests/drivers/net/xdp.py

···
 from enum import Enum
 
 from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_ge, ksft_ne, ksft_pr
+from lib.py import KsftNamedVariant, ksft_variants
 from lib.py import KsftFailEx, NetDrvEpEnv
 from lib.py import EthtoolFamily, NetdevFamily, NlError
 from lib.py import bkg, cmd, rand_port, wait_port_listen
···
     _validate_res(res, offset_lst, pkt_sz_lst)
 
 
-def _test_xdp_native_ifc_stats(cfg, act):
+@ksft_variants([
+    KsftNamedVariant("pass", XDPAction.PASS),
+    KsftNamedVariant("drop", XDPAction.DROP),
+    KsftNamedVariant("tx", XDPAction.TX),
+])
+def test_xdp_native_qstats(cfg, act):
+    """
+    Send 1000 messages. Expect XDP action specified in @act.
+    Make sure the packets were counted to interface level qstats
+    (Rx, and Tx if act is TX).
+    """
+
     cfg.require_cmd("socat")
 
     bpf_info = BPFProgInfo("xdp_prog", "xdp_native.bpf.o", "xdp", 1500)
···
             ksft_ge(after['tx-packets'], before['tx-packets'])
 
 
-def test_xdp_native_qstats_pass(cfg):
-    """
-    Send 2000 messages, expect XDP_PASS, make sure the packets were counted
-    to interface level qstats (Rx).
-    """
-    _test_xdp_native_ifc_stats(cfg, XDPAction.PASS)
-
-
-def test_xdp_native_qstats_drop(cfg):
-    """
-    Send 2000 messages, expect XDP_DROP, make sure the packets were counted
-    to interface level qstats (Rx).
-    """
-    _test_xdp_native_ifc_stats(cfg, XDPAction.DROP)
-
-
-def test_xdp_native_qstats_tx(cfg):
-    """
-    Send 2000 messages, expect XDP_TX, make sure the packets were counted
-    to interface level qstats (Rx and Tx)
-    """
-    _test_xdp_native_ifc_stats(cfg, XDPAction.TX)
-
-
 def main():
     """
     Main function to execute the XDP tests.
···
                 test_xdp_native_adjst_tail_shrnk_data,
                 test_xdp_native_adjst_head_grow_data,
                 test_xdp_native_adjst_head_shrnk_data,
-                test_xdp_native_qstats_pass,
-                test_xdp_native_qstats_drop,
-                test_xdp_native_qstats_tx,
+                test_xdp_native_qstats,
             ],
             args=(cfg,))
     ksft_exit()