Commit 4b808f44 authored by Petr Machata's avatar Petr Machata Committed by Jakub Kicinski
Browse files

selftests: fib_nexthops: Test 16-bit next hop weights 



Add tests that attempt to create NH groups that use full 16 bits of NH
weight.

Signed-off-by: default avatarPetr Machata <petrm@nvidia.com>
Reviewed-by: default avatarIdo Schimmel <idosch@nvidia.com>
Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/101cdd3f2bfd9511c9bec95f909d20ff56f70ba5.1723036486.git.petrm@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent dce0765c

tools/testing/selftests/net/fib_nexthops.sh

+54 −1
Original line number Diff line number Diff line
@@ -78,7 +78,12 @@ log_test() 
	else

		ret=1

		nfail=$((nfail+1))

		if [[ $rc -eq $ksft_skip ]]; then

			printf "TEST: %-60s  [SKIP]\n" "${msg}"

		else

			printf "TEST: %-60s  [FAIL]\n" "${msg}"

		fi



		if [ "$VERBOSE" = "1" ]; then

			echo "    rc=$rc, expected $expected"

		fi
@@ -923,6 +928,29 @@ ipv6_grp_fcnal() 


	ipv6_grp_refs

	log_test $? 0 "Nexthop group replace refcounts"



	#

	# 16-bit weights.

	#

	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"

	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"

	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"

	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"

	run_cmd "$IP nexthop add id 66 dev veth1"



	run_cmd "$IP nexthop add id 103 group 62,1000"

	if [[ $? == 0 ]]; then

		local GRP="id 103 group 62,254/63,255/64,256/65,257/66,65535"

		run_cmd "$IP nexthop replace $GRP"

		check_nexthop "id 103" "$GRP"

		rc=$?

	else

		rc=$ksft_skip

	fi



	$IP nexthop flush >/dev/null 2>&1



	log_test $rc 0 "16-bit weights"

}



ipv6_res_grp_fcnal()
@@ -987,6 +1015,31 @@ ipv6_res_grp_fcnal() 
	check_nexthop_bucket "list id 102" \

		"id 102 index 0 nhid 63 id 102 index 1 nhid 62 id 102 index 2 nhid 62 id 102 index 3 nhid 62"

	log_test $? 0 "Nexthop buckets updated after replace - nECMP"



	#

	# 16-bit weights.

	#

	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"

	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"

	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"

	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"

	run_cmd "$IP nexthop add id 66 dev veth1"



	run_cmd "$IP nexthop add id 103 group 62,1000 type resilient buckets 32"

	if [[ $? == 0 ]]; then

		local GRP="id 103 group 62,254/63,255/64,256/65,257/66,65535 $(:

			  )type resilient buckets 32 idle_timer 0 $(:

			  )unbalanced_timer 0"

		run_cmd "$IP nexthop replace $GRP"

		check_nexthop "id 103" "$GRP unbalanced_time 0"

		rc=$?

	else

		rc=$ksft_skip

	fi



	$IP nexthop flush >/dev/null 2>&1



	log_test $rc 0 "16-bit weights"

}



ipv6_fcnal_runtime()