Merge tag 'net-6.1-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from 802.15.4 (Zigbee et al).

  Current release - regressions:

   - ipa: fix bugs in the register conversion for IPA v3.1 and v3.5.1

  Current release - new code bugs:

   - mptcp: fix abba deadlock on fastopen

   - eth: stmmac: rk3588: allow multiple gmac controllers in one system

  Previous releases - regressions:

   - ip: rework the fix for dflt addr selection for connected nexthop

   - net: couple more fixes for misinterpreting bits in struct page
     after the signature was added

  Previous releases - always broken:

   - ipv6: ensure sane device mtu in tunnels

   - openvswitch: switch from WARN to pr_warn on a user-triggerable path

   - ethtool: eeprom: fix null-deref on genl_info in dump

   - ieee802154: more return code fixes for corner cases in
     dgram_sendmsg

   - mac802154: fix link-quality-indicator recording

   - eth: mlx5: fixes for IPsec, PTP timestamps, OvS and conntrack
     offload

   - eth: fec: limit register access on i.MX6UL

   - eth: bcm4908_enet: update TX stats after actual transmission

   - can: rcar_canfd: improve IRQ handling for RZ/G2L

  Misc:

   - genetlink: piggy back on the newly added resv_op_start to enforce
     more sanity checks on new commands"

* tag 'net-6.1-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  net: enetc: survive memory pressure without crashing
  kcm: do not sense pfmemalloc status in kcm_sendpage()
  net: do not sense pfmemalloc status in skb_append_pagefrags()
  net/mlx5e: Fix macsec sci endianness at rx sa update
  net/mlx5e: Fix wrong bitwise comparison usage in macsec_fs_rx_add_rule function
  net/mlx5e: Fix macsec rx security association (SA) update/delete
  net/mlx5e: Fix macsec coverity issue at rx sa update
  net/mlx5: Fix crash during sync firmware reset
  net/mlx5: Update fw fatal reporter state on PCI handlers successful recover
  net/mlx5e: TC, Fix cloned flow attr instance dests are not zeroed
  net/mlx5e: TC, Reject forwarding from internal port to internal port
  net/mlx5: Fix possible use-after-free in async command interface
  net/mlx5: ASO, Create the ASO SQ with the correct timestamp format
  net/mlx5e: Update restore chain id for slow path packets
  net/mlx5e: Extend SKB room check to include PTP-SQ
  net/mlx5: DR, Fix matcher disconnect error flow
  net/mlx5: Wait for firmware to enable CRS before pci_restore_state
  net/mlx5e: Do not increment ESN when updating IPsec ESN state
  netdevsim: remove dir in nsim_dev_debugfs_init() when creating ports dir failed
  netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed
  ...

4 files changed, 583 insertions, 0 deletions

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 0464b2c6c1e4..f07aef7c592c 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -49,6 +49,7 @@ TARGETS += net
 TARGETS += net/af_unix
 TARGETS += net/forwarding
 TARGETS += net/mptcp
+TARGETS += net/openvswitch
 TARGETS += netfilter
 TARGETS += nsfs
 TARGETS += pidfd
diff --git a/tools/testing/selftests/net/openvswitch/Makefile b/tools/testing/selftests/net/openvswitch/Makefile
new file mode 100644
index 000000000000..2f1508abc826
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+CFLAGS =  -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES)
+
+TEST_PROGS := openvswitch.sh
+
+TEST_FILES := ovs-dpctl.py
+
+EXTRA_CLEAN := test_netlink_checks
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh
new file mode 100755
index 000000000000..7ce46700a3ae
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
@@ -0,0 +1,218 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# OVS kernel module self tests
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+TRACING=0
+
+tests="
+	netlink_checks				ovsnl: validate netlink attrs and settings"
+
+info() {
+    [ $VERBOSE = 0 ] || echo $*
+}
+
+ovs_base=`pwd`
+sbxs=
+sbx_add () {
+	info "adding sandbox '$1'"
+
+	sbxs="$sbxs $1"
+
+	NO_BIN=0
+
+	# Create sandbox.
+	local d="$ovs_base"/$1
+	if [ -e $d ]; then
+		info "removing $d"
+		rm -rf "$d"
+	fi
+	mkdir "$d" || return 1
+	ovs_setenv $1
+}
+
+ovs_exit_sig() {
+	[ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup"
+}
+
+on_exit() {
+	echo "$1" > ${ovs_dir}/cleanup.tmp
+	cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp
+	mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup
+}
+
+ovs_setenv() {
+	sandbox=$1
+
+	ovs_dir=$ovs_base${1:+/$1}; export ovs_dir
+
+	test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup
+}
+
+ovs_sbx() {
+	if test "X$2" != X; then
+		(ovs_setenv $1; shift; "$@" >> ${ovs_dir}/debug.log)
+	else
+		ovs_setenv $1
+	fi
+}
+
+ovs_add_dp () {
+	info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}"
+	sbxname="$1"
+	shift
+	ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $*
+	on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;"
+}
+
+usage() {
+	echo
+	echo "$0 [OPTIONS] [TEST]..."
+	echo "If no TEST argument is given, all tests will be run."
+	echo
+	echo "Options"
+	echo "  -t: capture traffic via tcpdump"
+	echo "  -v: verbose"
+	echo "  -p: pause on failure"
+	echo
+	echo "Available tests${tests}"
+	exit 1
+}
+
+# netlink_validation
+# - Create a dp
+# - check no warning with "old version" simulation
+test_netlink_checks () {
+	sbx_add "test_netlink_checks" || return 1
+
+	info "setting up new DP"
+	ovs_add_dp "test_netlink_checks" nv0 || return 1
+	# now try again
+	PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
+	ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1
+	POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
+	if [ "$PRE_TEST" != "$POST_TEST" ]; then
+		info "failed - gen warning"
+		return 1
+	fi
+
+	return 0
+}
+
+run_test() {
+	(
+	tname="$1"
+	tdesc="$2"
+
+	if ! lsmod | grep openvswitch >/dev/null 2>&1; then
+		stdbuf -o0 printf "TEST: %-60s  [NOMOD]\n" "${tdesc}"
+		return $ksft_skip
+	fi
+
+	if python3 ovs-dpctl.py -h 2>&1 | \
+	     grep "Need to install the python" >/dev/null 2>&1; then
+		stdbuf -o0 printf "TEST: %-60s  [PYLIB]\n" "${tdesc}"
+		return $ksft_skip
+	fi
+	printf "TEST: %-60s  [START]\n" "${tname}"
+
+	unset IFS
+
+	eval test_${tname}
+	ret=$?
+
+	if [ $ret -eq 0 ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${tdesc}"
+		ovs_exit_sig
+		rm -rf "$ovs_dir"
+	elif [ $ret -eq 1 ]; then
+		printf "TEST: %-60s  [FAIL]\n" "${tdesc}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "Pausing. Logs in $ovs_dir/. Hit enter to continue"
+			read a
+		fi
+		ovs_exit_sig
+		[ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir"
+		exit 1
+	elif [ $ret -eq $ksft_skip ]; then
+		printf "TEST: %-60s  [SKIP]\n" "${tdesc}"
+	elif [ $ret -eq 2 ]; then
+		rm -rf test_${tname}
+		run_test "$1" "$2"
+	fi
+
+	return $ret
+	)
+	ret=$?
+	case $ret in
+		0)
+			[ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0
+			all_skipped=false
+		;;
+		$ksft_skip)
+			[ $all_skipped = true ] && exitcode=$ksft_skip
+		;;
+		*)
+			all_skipped=false
+			exitcode=1
+		;;
+	esac
+
+	return $ret
+}
+
+
+exitcode=0
+desc=0
+all_skipped=true
+
+while getopts :pvt o
+do
+	case $o in
+	p) PAUSE_ON_FAIL=yes;;
+	v) VERBOSE=1;;
+	t) if which tcpdump > /dev/null 2>&1; then
+		TRACING=1
+	   else
+		echo "=== tcpdump not available, tracing disabled"
+	   fi
+	   ;;
+	*) usage;;
+	esac
+done
+shift $(($OPTIND-1))
+
+IFS="	
+"
+
+for arg do
+	# Check first that all requested tests are available before running any
+	command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; }
+done
+
+name=""
+desc=""
+for t in ${tests}; do
+	[ "${name}" = "" ]	&& name="${t}"	&& continue
+	[ "${desc}" = "" ]	&& desc="${t}"
+
+	run_this=1
+	for arg do
+		[ "${arg}" != "${arg#--*}" ] && continue
+		[ "${arg}" = "${name}" ] && run_this=1 && break
+		run_this=0
+	done
+	if [ $run_this -eq 1 ]; then
+		run_test "${name}" "${desc}"
+	fi
+	name=""
+	desc=""
+done
+
+exit ${exitcode}
diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
new file mode 100644
index 000000000000..3243c90d449e
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
@@ -0,0 +1,351 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+# Controls the openvswitch module.  Part of the kselftest suite, but
+# can be used for some diagnostic purpose as well.
+
+import argparse
+import errno
+import sys
+
+try:
+    from pyroute2 import NDB
+
+    from pyroute2.netlink import NLM_F_ACK
+    from pyroute2.netlink import NLM_F_REQUEST
+    from pyroute2.netlink import genlmsg
+    from pyroute2.netlink import nla
+    from pyroute2.netlink.exceptions import NetlinkError
+    from pyroute2.netlink.generic import GenericNetlinkSocket
+except ModuleNotFoundError:
+    print("Need to install the python pyroute2 package.")
+    sys.exit(0)
+
+
+OVS_DATAPATH_FAMILY = "ovs_datapath"
+OVS_VPORT_FAMILY = "ovs_vport"
+OVS_FLOW_FAMILY = "ovs_flow"
+OVS_PACKET_FAMILY = "ovs_packet"
+OVS_METER_FAMILY = "ovs_meter"
+OVS_CT_LIMIT_FAMILY = "ovs_ct_limit"
+
+OVS_DATAPATH_VERSION = 2
+OVS_DP_CMD_NEW = 1
+OVS_DP_CMD_DEL = 2
+OVS_DP_CMD_GET = 3
+OVS_DP_CMD_SET = 4
+
+OVS_VPORT_CMD_NEW = 1
+OVS_VPORT_CMD_DEL = 2
+OVS_VPORT_CMD_GET = 3
+OVS_VPORT_CMD_SET = 4
+
+
+class ovs_dp_msg(genlmsg):
+    # include the OVS version
+    # We need a custom header rather than just being able to rely on
+    # genlmsg because fields ends up not expressing everything correctly
+    # if we use the canonical example of setting fields = (('customfield',),)
+    fields = genlmsg.fields + (("dpifindex", "I"),)
+
+
+class OvsDatapath(GenericNetlinkSocket):
+
+    OVS_DP_F_VPORT_PIDS = 1 << 1
+    OVS_DP_F_DISPATCH_UPCALL_PER_CPU = 1 << 3
+
+    class dp_cmd_msg(ovs_dp_msg):
+        """
+        Message class that will be used to communicate with the kernel module.
+        """
+
+        nla_map = (
+            ("OVS_DP_ATTR_UNSPEC", "none"),
+            ("OVS_DP_ATTR_NAME", "asciiz"),
+            ("OVS_DP_ATTR_UPCALL_PID", "uint32"),
+            ("OVS_DP_ATTR_STATS", "dpstats"),
+            ("OVS_DP_ATTR_MEGAFLOW_STATS", "megaflowstats"),
+            ("OVS_DP_ATTR_USER_FEATURES", "uint32"),
+            ("OVS_DP_ATTR_PAD", "none"),
+            ("OVS_DP_ATTR_MASKS_CACHE_SIZE", "uint32"),
+            ("OVS_DP_ATTR_PER_CPU_PIDS", "array(uint32)"),
+        )
+
+        class dpstats(nla):
+            fields = (
+                ("hit", "=Q"),
+                ("missed", "=Q"),
+                ("lost", "=Q"),
+                ("flows", "=Q"),
+            )
+
+        class megaflowstats(nla):
+            fields = (
+                ("mask_hit", "=Q"),
+                ("masks", "=I"),
+                ("padding", "=I"),
+                ("cache_hits", "=Q"),
+                ("pad1", "=Q"),
+            )
+
+    def __init__(self):
+        GenericNetlinkSocket.__init__(self)
+        self.bind(OVS_DATAPATH_FAMILY, OvsDatapath.dp_cmd_msg)
+
+    def info(self, dpname, ifindex=0):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_GET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = ifindex
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+    def create(self, dpname, shouldUpcall=False, versionStr=None):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_NEW
+        if versionStr is None:
+            msg["version"] = OVS_DATAPATH_VERSION
+        else:
+            msg["version"] = int(versionStr.split(":")[0], 0)
+        msg["reserved"] = 0
+        msg["dpifindex"] = 0
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        dpfeatures = 0
+        if versionStr is not None and versionStr.find(":") != -1:
+            dpfeatures = int(versionStr.split(":")[1], 0)
+        else:
+            dpfeatures = OvsDatapath.OVS_DP_F_VPORT_PIDS
+
+        msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures])
+        if not shouldUpcall:
+            msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", 0])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.EEXIST:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+    def destroy(self, dpname):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_DEL
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = 0
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+
+class OvsVport(GenericNetlinkSocket):
+    class ovs_vport_msg(ovs_dp_msg):
+        nla_map = (
+            ("OVS_VPORT_ATTR_UNSPEC", "none"),
+            ("OVS_VPORT_ATTR_PORT_NO", "uint32"),
+            ("OVS_VPORT_ATTR_TYPE", "uint32"),
+            ("OVS_VPORT_ATTR_NAME", "asciiz"),
+            ("OVS_VPORT_ATTR_OPTIONS", "none"),
+            ("OVS_VPORT_ATTR_UPCALL_PID", "array(uint32)"),
+            ("OVS_VPORT_ATTR_STATS", "vportstats"),
+            ("OVS_VPORT_ATTR_PAD", "none"),
+            ("OVS_VPORT_ATTR_IFINDEX", "uint32"),
+            ("OVS_VPORT_ATTR_NETNSID", "uint32"),
+        )
+
+        class vportstats(nla):
+            fields = (
+                ("rx_packets", "=Q"),
+                ("tx_packets", "=Q"),
+                ("rx_bytes", "=Q"),
+                ("tx_bytes", "=Q"),
+                ("rx_errors", "=Q"),
+                ("tx_errors", "=Q"),
+                ("rx_dropped", "=Q"),
+                ("tx_dropped", "=Q"),
+            )
+
+    def type_to_str(vport_type):
+        if vport_type == 1:
+            return "netdev"
+        elif vport_type == 2:
+            return "internal"
+        elif vport_type == 3:
+            return "gre"
+        elif vport_type == 4:
+            return "vxlan"
+        elif vport_type == 5:
+            return "geneve"
+        return "unknown:%d" % vport_type
+
+    def __init__(self):
+        GenericNetlinkSocket.__init__(self)
+        self.bind(OVS_VPORT_FAMILY, OvsVport.ovs_vport_msg)
+
+    def info(self, vport_name, dpifindex=0, portno=None):
+        msg = OvsVport.ovs_vport_msg()
+
+        msg["cmd"] = OVS_VPORT_CMD_GET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpifindex
+
+        if portno is None:
+            msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_name])
+        else:
+            msg["attrs"].append(["OVS_VPORT_ATTR_PORT_NO", portno])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+        return reply
+
+
+def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB()):
+    dp_name = dp_lookup_rep.get_attr("OVS_DP_ATTR_NAME")
+    base_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_STATS")
+    megaflow_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_MEGAFLOW_STATS")
+    user_features = dp_lookup_rep.get_attr("OVS_DP_ATTR_USER_FEATURES")
+    masks_cache_size = dp_lookup_rep.get_attr("OVS_DP_ATTR_MASKS_CACHE_SIZE")
+
+    print("%s:" % dp_name)
+    print(
+        "  lookups: hit:%d missed:%d lost:%d"
+        % (base_stats["hit"], base_stats["missed"], base_stats["lost"])
+    )
+    print("  flows:%d" % base_stats["flows"])
+    pkts = base_stats["hit"] + base_stats["missed"]
+    avg = (megaflow_stats["mask_hit"] / pkts) if pkts != 0 else 0.0
+    print(
+        "  masks: hit:%d total:%d hit/pkt:%f"
+        % (megaflow_stats["mask_hit"], megaflow_stats["masks"], avg)
+    )
+    print("  caches:")
+    print("    masks-cache: size:%d" % masks_cache_size)
+
+    if user_features is not None:
+        print("  features: 0x%X" % user_features)
+
+    # port print out
+    vpl = OvsVport()
+    for iface in ndb.interfaces:
+        rep = vpl.info(iface.ifname, ifindex)
+        if rep is not None:
+            print(
+                "  port %d: %s (%s)"
+                % (
+                    rep.get_attr("OVS_VPORT_ATTR_PORT_NO"),
+                    rep.get_attr("OVS_VPORT_ATTR_NAME"),
+                    OvsVport.type_to_str(rep.get_attr("OVS_VPORT_ATTR_TYPE")),
+                )
+            )
+
+
+def main(argv):
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-v",
+        "--verbose",
+        action="count",
+        help="Increment 'verbose' output counter.",
+    )
+    subparsers = parser.add_subparsers()
+
+    showdpcmd = subparsers.add_parser("show")
+    showdpcmd.add_argument(
+        "showdp", metavar="N", type=str, nargs="?", help="Datapath Name"
+    )
+
+    adddpcmd = subparsers.add_parser("add-dp")
+    adddpcmd.add_argument("adddp", help="Datapath Name")
+    adddpcmd.add_argument(
+        "-u",
+        "--upcall",
+        action="store_true",
+        help="Leave open a reader for upcalls",
+    )
+    adddpcmd.add_argument(
+        "-V",
+        "--versioning",
+        required=False,
+        help="Specify a custom version / feature string",
+    )
+
+    deldpcmd = subparsers.add_parser("del-dp")
+    deldpcmd.add_argument("deldp", help="Datapath Name")
+
+    args = parser.parse_args()
+
+    ovsdp = OvsDatapath()
+    ndb = NDB()
+
+    if hasattr(args, "showdp"):
+        found = False
+        for iface in ndb.interfaces:
+            rep = None
+            if args.showdp is None:
+                rep = ovsdp.info(iface.ifname, 0)
+            elif args.showdp == iface.ifname:
+                rep = ovsdp.info(iface.ifname, 0)
+
+            if rep is not None:
+                found = True
+                print_ovsdp_full(rep, iface.index, ndb)
+
+        if not found:
+            msg = "No DP found"
+            if args.showdp is not None:
+                msg += ":'%s'" % args.showdp
+            print(msg)
+    elif hasattr(args, "adddp"):
+        rep = ovsdp.create(args.adddp, args.upcall, args.versioning)
+        if rep is None:
+            print("DP '%s' already exists" % args.adddp)
+        else:
+            print("DP '%s' added" % args.adddp)
+    elif hasattr(args, "deldp"):
+        ovsdp.destroy(args.deldp)
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv))