Message-ID: <1ac3ea60-81d8-4501-b983-cb22b046f2ea@gmx.net>
Date: Sun, 15 Oct 2023 01:26:11 +0200
From: Stefan Wahren <wahrenst@....net>
To: Eric Dumazet <edumazet@...gle.com>, Neal Cardwell <ncardwell@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>, Fabio Estevam <festevam@...il.com>,
 linux-imx@....com, Stefan Wahren <stefan.wahren@...rgebyte.com>,
 Michael Heimpold <mhei@...mpold.de>, netdev@...r.kernel.org,
 Yuchung Cheng <ycheng@...gle.com>
Subject: Re: iperf performance regression since Linux 5.18

Hi Eric,

Am 15.10.23 um 00:51 schrieb Eric Dumazet:
> On Sat, Oct 14, 2023 at 9:40 PM Neal Cardwell <ncardwell@...gle.com> wrote:
>> On Fri, Oct 13, 2023 at 9:37 AM Stefan Wahren <wahrenst@....net> wrote:
>>> Hi,
>>>
>>> Am 09.10.23 um 21:19 schrieb Neal Cardwell:
>>>> On Mon, Oct 9, 2023 at 3:11 PM Eric Dumazet <edumazet@...gle.com> wrote:
>>>>> On Mon, Oct 9, 2023 at 8:58 PM Stefan Wahren <wahrenst@....net> wrote:
>>>>>> Hi,
>>>>>> we recently switched on our ARM NXP i.MX6ULL based embedded device
>>>>>> (Tarragon Master [1]) from an older kernel version to Linux 6.1. After
>>>>>> that we noticed a measurable performance regression on the Ethernet
>>>>>> interface (driver: fec, 100 Mbit link) while running iperf client on the
>>>>>> device:
>>>>>>
>>>>>> BAD
>>>>>>
>>>>>> # iperf -t 10 -i 1 -c 192.168.1.129
>>>>>> ------------------------------------------------------------
>>>>>> Client connecting to 192.168.1.129, TCP port 5001
>>>>>> TCP window size: 96.2 KByte (default)
>>>>>> ------------------------------------------------------------
>>>>>> [  3] local 192.168.1.12 port 56022 connected with 192.168.1.129 port 5001
>>>>>> [ ID] Interval       Transfer     Bandwidth
>>>>>> [  3]  0.0- 1.0 sec  9.88 MBytes  82.8 Mbits/sec
>>>>>> [  3]  1.0- 2.0 sec  9.62 MBytes  80.7 Mbits/sec
>>>>>> [  3]  2.0- 3.0 sec  9.75 MBytes  81.8 Mbits/sec
>>>>>> [  3]  3.0- 4.0 sec  9.62 MBytes  80.7 Mbits/sec
>>>>>> [  3]  4.0- 5.0 sec  9.62 MBytes  80.7 Mbits/sec
>>>>>> [  3]  5.0- 6.0 sec  9.62 MBytes  80.7 Mbits/sec
>>>>>> [  3]  6.0- 7.0 sec  9.50 MBytes  79.7 Mbits/sec
>>>>>> [  3]  7.0- 8.0 sec  9.75 MBytes  81.8 Mbits/sec
>>>>>> [  3]  8.0- 9.0 sec  9.62 MBytes  80.7 Mbits/sec
>>>>>> [  3]  9.0-10.0 sec  9.50 MBytes  79.7 Mbits/sec
>>>>>> [  3]  0.0-10.0 sec  96.5 MBytes  80.9 Mbits/sec
>>>>>>
>>>>>> GOOD
>>>>>>
>>>>>> # iperf -t 10 -i 1 -c 192.168.1.129
>>>>>> ------------------------------------------------------------
>>>>>> Client connecting to 192.168.1.129, TCP port 5001
>>>>>> TCP window size: 96.2 KByte (default)
>>>>>> ------------------------------------------------------------
>>>>>> [  3] local 192.168.1.12 port 54898 connected with 192.168.1.129 port 5001
>>>>>> [ ID] Interval       Transfer     Bandwidth
>>>>>> [  3]  0.0- 1.0 sec  11.2 MBytes  94.4 Mbits/sec
>>>>>> [  3]  1.0- 2.0 sec  11.0 MBytes  92.3 Mbits/sec
>>>>>> [  3]  2.0- 3.0 sec  10.8 MBytes  90.2 Mbits/sec
>>>>>> [  3]  3.0- 4.0 sec  11.0 MBytes  92.3 Mbits/sec
>>>>>> [  3]  4.0- 5.0 sec  10.9 MBytes  91.2 Mbits/sec
>>>>>> [  3]  5.0- 6.0 sec  10.9 MBytes  91.2 Mbits/sec
>>>>>> [  3]  6.0- 7.0 sec  10.8 MBytes  90.2 Mbits/sec
>>>>>> [  3]  7.0- 8.0 sec  10.9 MBytes  91.2 Mbits/sec
>>>>>> [  3]  8.0- 9.0 sec  10.9 MBytes  91.2 Mbits/sec
>>>>>> [  3]  9.0-10.0 sec  10.9 MBytes  91.2 Mbits/sec
>>>>>> [  3]  0.0-10.0 sec   109 MBytes  91.4 Mbits/sec
>>>>>>
>>>>>> We were able to bisect this down to this commit:
>>>>>>
>>>>>> first bad commit: [65466904b015f6eeb9225b51aeb29b01a1d4b59c] tcp: adjust
>>>>>> TSO packet sizes based on min_rtt
>>>>>>
>>>>>> Disabling this new setting via:
>>>>>>
>>>>>> echo 0 > /proc/sys/net/ipv4/tcp_tso_rtt_log
>>>>>>
>>>>>> confirm that this was the cause of the performance regression.
>>>>>>
>>>>>> Is it expected that the new default setting has such a performance impact?
>>>> Indeed, thanks for the report.
>>>>
>>>> In addition to the "ss" output Eric mentioned, could you please grab
>>>> "nstat" output, which should allow us to calculate the average TSO/GSO
>>>> and LRO/GRO burst sizes, which is the key thing tuned with the
>>>> tcp_tso_rtt_log knob.
>>>>
>>>> So it would be great to have the following from both data sender and
>>>> data receiver, for both the good case and bad case, if you could start
>>>> these before your test and kill them after the test stops:
>>>>
>>>> (while true; do date; ss -tenmoi; sleep 1; done) > /root/ss.txt &
>>>> nstat -n; (while true; do date; nstat; sleep 1; done)  > /root/nstat.txt
>>> i upload everything here:
>>> https://github.com/lategoodbye/tcp_tso_rtt_log_regress
>>>
>>> The server part is a Ubuntu installation connected to the internet. At
>>> first i logged the good case, then i continued with the bad case.
>>> Accidentally i delete a log file of bad case, so i repeated the whole
>>> bad case again. So the uploaded bad case files are from the third run.
>> Thanks for the detailed data!
>>
>> Here are some notes from looking at this data:
>>
>> + bad client: avg TSO burst size is roughly:
>> https://github.com/lategoodbye/tcp_tso_rtt_log_regress/blob/main/nstat_client_bad.log
>> IpOutRequests                   308               44.7
>> IpExtOutOctets                  10050656        1403181.0
>> est bytes   per TSO burst: 10050656 / 308 = 32632
>> est packets per TSO burst: 32632 / 1448 ~= 22.5
>>
>> + good client: avg TSO burst size is roughly:
>> https://github.com/lategoodbye/tcp_tso_rtt_log_regress/blob/main/nstat_client_good.log
>> IpOutRequests                   529               62.0
>> IpExtOutOctets                  11502992        1288711.5
>> est bytes   per TSO burst: 11502992 / 529 ~= 21745
>> est packets per TSO burst: 21745 / 1448 ~= 15.0
>>
>> + bad client ss data:
>> https://github.com/lategoodbye/tcp_tso_rtt_log_regress/blob/main/ss_client_bad.log
>> State Recv-Q Send-Q Local Address:Port   Peer Address:PortProcess
>> ESTAB 0      236024  192.168.1.12:39228 192.168.1.129:5001
>> timer:(on,030ms,0) ino:25876 sk:414f52af rto:0.21 cwnd:68 ssthresh:20
>> reordering:0
>> Mbits/sec allowed by cwnd: 68 * 1448 * 8 / .0018 / 1000000.0 ~= 437.6
>>
>> + good client ss data:
>> https://github.com/lategoodbye/tcp_tso_rtt_log_regress/blob/main/ss_client_good.log
>> Fri Oct 13 15:04:36 CEST 2023
>> State Recv-Q Send-Q Local Address:Port   Peer Address:PortProcess
>> ESTAB 0      425712  192.168.1.12:33284 192.168.1.129:5001
>> timer:(on,020ms,0) ino:20654 sk:414f52af rto:0.21 cwnd:106 ssthresh:20
>> reordering:0
>> Mbits/sec allowed by cwnd: 106 * 1448 * 8 / .0028 / 1000000.0 = 438.5
>>
>> So it seems indeed like cwnd is not the limiting factor, and instead
>> there is something about the larger TSO/GSO bursts (roughly 22.5
>> packets per burst on average) in the "bad" case that is causing
>> problems, and preventing the sender from keeping the pipe fully
>> utilized.
>>
>> So perhaps the details of the tcp_tso_should_defer() logic are hurting
>> performance?
>>
>> The default value of tcp_tso_win_divisor is 3, and in the bad case the
>> cwnd / tcp_tso_win_divisor = 68 / 3 = 22.7 packets, which is
>> suspiciously close to the average TSO burst size of 22.5. So my guess
>> is that the tcp_tso_win_divisor of 3 is the dominant factor here, and
>> perhaps if we raise it to 5, then 68/5 ~= 13.60 will approximate the
>> TSO burst size in the "good" case, and fully utilize the pipe. So it
>> seems worth an experiment, to see what we can learn.
>>
>> To test that theory, could you please try running the following as
>> root on the data sender machine, and then re-running the "bad" test
>> with tcp_tso_rtt_log at the default value of 9?
>>
>>     sysctl net.ipv4.tcp_tso_win_divisor=5
>>
>> Thanks!
>> neal
> Hmm, we receive ~3200 acks per second, I am not sure the
> tcp_tso_should_defer() logic
> would hurt ?
>
> Also the ss binary on the client seems very old, or its output has
> been mangled perhaps ?
this binary is from Yocto kirkstone:

# ss --version
ss utility, iproute2-5.17.0

This shouldn't be too old. Maybe some missing kernel settings?

Maybe relevant extract from the config:

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems

CONFIG_NET=y
CONFIG_NET_EGRESS=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TABLE_PERTURB_ORDER=16
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
CONFIG_IPV6_OPTIMISTIC_DAD=y
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_ILA is not set
# CONFIG_IPV6_VTI is not set
# CONFIG_IPV6_SIT is not set
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
# CONFIG_MPTCP is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
# CONFIG_BRIDGE_NETFILTER is not set

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_INGRESS is not set
CONFIG_NETFILTER_EGRESS=y
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NETFILTER_NETLINK_OSF is not set
CONFIG_NF_CONNTRACK=y
# CONFIG_NF_LOG_SYSLOG is not set
# CONFIG_NF_CONNTRACK_MARK is not set
# CONFIG_NF_CONNTRACK_ZONES is not set
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CONNTRACK_EVENTS is not set
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
# CONFIG_NF_CONNTRACK_LABELS is not set
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
# CONFIG_NF_CONNTRACK_AMANDA is not set
CONFIG_NF_CONNTRACK_FTP=y
# CONFIG_NF_CONNTRACK_H323 is not set
# CONFIG_NF_CONNTRACK_IRC is not set
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_SNMP is not set
# CONFIG_NF_CONNTRACK_PPTP is not set
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CONNTRACK_TFTP is not set
# CONFIG_NF_CT_NETLINK is not set
CONFIG_NF_NAT=y
CONFIG_NF_NAT_FTP=y
CONFIG_NF_NAT_MASQUERADE=y
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y

#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set
# CONFIG_NETFILTER_XT_CONNMARK is not set

#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
CONFIG_NETFILTER_XT_NAT=y
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=y
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y

#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
# CONFIG_NETFILTER_XT_MATCH_CONNTRACK is not set
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
# CONFIG_NETFILTER_XT_MATCH_STATE is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=y
# CONFIG_NF_SOCKET_IPV4 is not set
# CONFIG_NF_TPROXY_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
# CONFIG_NF_REJECT_IPV4 is not set
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_FILTER is not set
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
# CONFIG_IP_NF_TARGET_NETMAP is not set
# CONFIG_IP_NF_TARGET_REDIRECT is not set
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_ARPTABLES is not set
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_SOCKET_IPV6 is not set
# CONFIG_NF_TPROXY_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
# CONFIG_NF_REJECT_IPV6 is not set
# CONFIG_NF_LOG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=y
# CONFIG_NF_CONNTRACK_BRIDGE is not set
# CONFIG_BRIDGE_NF_EBTABLES is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=y
CONFIG_BRIDGE=y
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=y
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
CONFIG_LLC=y
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
# CONFIG_CAN_GW is not set
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_MCTP is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
CONFIG_NET_SELFTESTS=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y

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