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Take into account the IPV6_TCLASS socket option (DSCP) in
ip6_datagram_flow_key_init(). Otherwise fib6_rule_match() can't
properly match the DSCP value, resulting in invalid route lookup.
For example:
ip route add unreachable table main 2001:db8::10/124
ip route add table 100 2001:db8::10/124 dev eth0
ip -6 rule add dsfield 0x04 table 100
echo test | socat - UDP6:[2001:db8::11]:54321,ipv6-tclass=0x04
Without this patch, socat fails at connect() time ("No route to host")
because the fib-rule doesn't jump to table 100 and the lookup ends up
being done in the main table.
Fixes: 2cc67cc731d9 ("[IPV6] ROUTE: Routing by Traffic Class.")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Simon Horman says:
====================
nfp: fix schedule in atomic context when offloading sa
Yinjun Zhang says:
IPsec offloading callbacks may be called in atomic context, sleep is
not allowed in the implementation. Now use workqueue mechanism to
avoid this issue.
Extend existing workqueue mechanism for multicast configuration only
to universal use, so that all configuring through mailbox asynchoronously
can utilize it.
Also fix another two incorrect use of mailbox in IPsec:
1. Need lock for race condition when accessing mbox
2. Offset of mbox access should depends on tlv caps
====================
Link: https://lore.kernel.org/r/20230208102258.29639-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
IPsec offloading callbacks may be called in atomic context, sleep is
not allowed in the implementation. Now use workqueue mechanism to
avoid this issue.
Extend existing workqueue mechanism for multicast configuration only
to universal use, so that all configuring through mailbox asynchronously
can utilize it.
Fixes: 859a497fe80c ("nfp: implement xfrm callbacks and expose ipsec offload feature to upper layer")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The mailbox configuration mechanism requires writing several registers,
which shouldn't be interrupted, so need lock to avoid race condition.
The base offset of mailbox configuration registers is not fixed, it
depends on TLV caps read from application firmware.
Fixes: 859a497fe80c ("nfp: implement xfrm callbacks and expose ipsec offload feature to upper layer")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Code blocks handling BCMA_CHIP_ID_BCM5357 and BCMA_CHIP_ID_BCM53572 were
incorrectly unified. Chip package values are not unique and cannot be
checked independently. They are meaningful only in a context of a given
chip.
Packages BCM5358 and BCM47188 share the same value but then belong to
different chips. Code unification resulted in treating BCM5358 as
BCM47188 and broke its initialization.
Link: https://github.com/openwrt/openwrt/issues/8278
Fixes: cb1b0f90acfe ("net: ethernet: bgmac: unify code of the same family")
Cc: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230208091637.16291-1-zajec5@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ipsec subtrees
Current release - regressions:
- sched: fix off by one in htb_activate_prios()
- eth: mana: fix accessing freed irq affinity_hint
- eth: ice: fix out-of-bounds KASAN warning in virtchnl
Current release - new code bugs:
- eth: mtk_eth_soc: enable special tag when any MAC uses DSA
Previous releases - always broken:
- core: fix sk->sk_txrehash default
- neigh: make sure used and confirmed times are valid
- mptcp: be careful on subflow status propagation on errors
- xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
- phylink: move phy_device_free() to correctly release phy device
- eth: mlx5:
- fix crash unsetting rx-vlan-filter in switchdev mode
- fix hang on firmware reset
- serialize module cleanup with reload and remove
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can and ipsec subtrees.
Current release - regressions:
- sched: fix off by one in htb_activate_prios()
- eth: mana: fix accessing freed irq affinity_hint
- eth: ice: fix out-of-bounds KASAN warning in virtchnl
Current release - new code bugs:
- eth: mtk_eth_soc: enable special tag when any MAC uses DSA
Previous releases - always broken:
- core: fix sk->sk_txrehash default
- neigh: make sure used and confirmed times are valid
- mptcp: be careful on subflow status propagation on errors
- xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
- phylink: move phy_device_free() to correctly release phy device
- eth: mlx5:
- fix crash unsetting rx-vlan-filter in switchdev mode
- fix hang on firmware reset
- serialize module cleanup with reload and remove"
* tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
selftests: forwarding: lib: quote the sysctl values
net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
rds: rds_rm_zerocopy_callback() use list_first_entry()
net: txgbe: Update support email address
selftests: Fix failing VXLAN VNI filtering test
selftests: mptcp: stop tests earlier
selftests: mptcp: allow more slack for slow test-case
mptcp: be careful on subflow status propagation on errors
mptcp: fix locking for in-kernel listener creation
mptcp: fix locking for setsockopt corner-case
mptcp: do not wait for bare sockets' timeout
net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0
nfp: ethtool: fix the bug of setting unsupported port speed
txhash: fix sk->sk_txrehash default
net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg()
net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA
net: sched: sch: Fix off by one in htb_activate_prios()
igc: Add ndo_tx_timeout support
net: mana: Fix accessing freed irq affinity_hint
hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
...
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Merge tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:
- fix potential infinite loop with a badly crafted HID device (Xin
Zhao)
- fix regression from 6.1 in USB logitech devices potentially making
their mouse wheel not working (Bastien Nocera)
- clean up in AMD sensors, which fixes a long time resume bug (Mario
Limonciello)
- few device small fixes and quirks
* tag 'for-linus-2023020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: Ignore battery for ELAN touchscreen 29DF on HP
HID: amd_sfh: if no sensors are enabled, clean up
HID: logitech: Disable hi-res scrolling on USB
HID: core: Fix deadloop in hid_apply_multiplier.
HID: Ignore battery for Elan touchscreen on Asus TP420IA
HID: elecom: add support for TrackBall 056E:011C
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Merge tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull cifx fix from Steve French:
"Small fix for use after free"
* tag '6.2-rc8-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix use-after-free in rdata->read_into_pages()
When set/restore sysctl value, we should quote the value as some keys
may have multi values, e.g. net.ipv4.ping_group_range
Fixes: f5ae57784ba8 ("selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20230208032110.879205-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
While running this selftest which usually passes:
~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ]
TEST: swp0: Multicast IPv4 to joined group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ]
TEST: swp0: Multicast IPv6 to joined group [ OK ]
TEST: swp0: Multicast IPv6 to unknown group [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ]
if I start PTP timestamping then run it again (debug prints added by me),
the unknown IPv6 MC traffic is seen by the CPU port even when it should
have been dropped:
~/selftests/drivers/net/dsa# ptp4l -i swp0 -2 -P -m
ptp4l[225.410]: selected /dev/ptp1 as PTP clock
[ 225.445746] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_add: port 0 adding L2 PTP trap
[ 225.453815] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP event trap
[ 225.462703] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_add: port 0 adding IPv4 PTP general trap
[ 225.471768] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP event trap
[ 225.480651] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_add: port 0 adding IPv6 PTP general trap
ptp4l[225.488]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[225.488]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
^C
~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ]
TEST: swp0: Multicast IPv4 to joined group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ]
TEST: swp0: Multicast IPv6 to joined group [ OK ]
TEST: swp0: Multicast IPv6 to unknown group [FAIL]
reception succeeded, but should have failed
TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ]
The PGID_MCIPV6 is configured correctly to not flood to the CPU,
I checked that.
Furthermore, when I disable back PTP RX timestamping (ptp4l doesn't do
that when it exists), packets are RX filtered again as they should be:
~/selftests/drivers/net/dsa# hwstamp_ctl -i swp0 -r 0
[ 218.202854] mscc_felix 0000:00:00.5: ocelot_l2_ptp_trap_del: port 0 removing L2 PTP trap
[ 218.212656] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP event trap
[ 218.222975] mscc_felix 0000:00:00.5: ocelot_ipv4_ptp_trap_del: port 0 removing IPv4 PTP general trap
[ 218.233133] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP event trap
[ 218.242251] mscc_felix 0000:00:00.5: ocelot_ipv6_ptp_trap_del: port 0 removing IPv6 PTP general trap
current settings:
tx_type 1
rx_filter 12
new settings:
tx_type 1
rx_filter 0
~/selftests/drivers/net/dsa# ./local_termination.sh eno0 swp0
TEST: swp0: Unicast IPv4 to primary MAC address [ OK ]
TEST: swp0: Unicast IPv4 to macvlan MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, promisc [ OK ]
TEST: swp0: Unicast IPv4 to unknown MAC address, allmulti [ OK ]
TEST: swp0: Multicast IPv4 to joined group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv4 to unknown group, allmulti [ OK ]
TEST: swp0: Multicast IPv6 to joined group [ OK ]
TEST: swp0: Multicast IPv6 to unknown group [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, promisc [ OK ]
TEST: swp0: Multicast IPv6 to unknown group, allmulti [ OK ]
So it's clear that something in the PTP RX trapping logic went wrong.
Looking a bit at the code, I can see that there are 4 typos, which
populate "ipv4" VCAP IS2 key filter fields for IPv6 keys.
VCAP IS2 keys of type OCELOT_VCAP_KEY_IPV4 and OCELOT_VCAP_KEY_IPV6 are
handled by is2_entry_set(). OCELOT_VCAP_KEY_IPV4 looks at
&filter->key.ipv4, and OCELOT_VCAP_KEY_IPV6 at &filter->key.ipv6.
Simply put, when we populate the wrong key field, &filter->key.ipv6
fields "proto.mask" and "proto.value" remain all zeroes (or "don't care").
So is2_entry_set() will enter the "else" of this "if" condition:
if (msk == 0xff && (val == IPPROTO_TCP || val == IPPROTO_UDP))
and proceed to ignore the "proto" field. The resulting rule will match
on all IPv6 traffic, trapping it to the CPU.
This is the reason why the local_termination.sh selftest sees it,
because control traps are stronger than the PGID_MCIPV6 used for
flooding (from the forwarding data path).
But the problem is in fact much deeper. We trap all IPv6 traffic to the
CPU, but if we're bridged, we set skb->offload_fwd_mark = 1, so software
forwarding will not take place and IPv6 traffic will never reach its
destination.
The fix is simple - correct the typos.
I was intentionally inaccurate in the commit message about the breakage
occurring when any PTP timestamping is enabled. In fact it only happens
when L4 timestamping is requested (HWTSTAMP_FILTER_PTP_V2_EVENT or
HWTSTAMP_FILTER_PTP_V2_L4_EVENT). But ptp4l requests a larger RX
timestamping filter than it needs for "-2": HWTSTAMP_FILTER_PTP_V2_EVENT.
I wanted people skimming through git logs to not think that the bug
doesn't affect them because they only use ptp4l in L2 mode.
Fixes: 96ca08c05838 ("net: mscc: ocelot: set up traps for PTP packets")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230207183117.1745754-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
rds_rm_zerocopy_callback() uses list_entry() on the head of a list
causing a type confusion.
Use list_first_entry() to actually access the first element of the
rs_zcookie_queue list.
Fixes: 9426bbc6de99 ("rds: use list structure to track information for zerocopy completion notification")
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230202-rds-zerocopy-v3-1-83b0df974f9a@diag.uniroma1.it
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'ipsec-2023-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
ipsec 2023-02-08
1) Fix policy checks for nested IPsec tunnels when using
xfrm interfaces. From Benedict Wong.
2) Fix netlink message expression on 32=>64-bit
messages translators. From Anastasia Belova.
3) Prevent potential spectre v1 gadget in xfrm_xlate32_attr.
From Eric Dumazet.
4) Always consistently use time64_t in xfrm_timer_handler.
From Eric Dumazet.
5) Fix KCSAN reported bug: Multiple cpus can update use_time
at the same time. From Eric Dumazet.
6) Fix SCP copy from IPv4 to IPv6 on interfamily tunnel.
From Christian Hopps.
* tag 'ipsec-2023-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
xfrm: fix bug with DSCP copy to v6 from v4 tunnel
xfrm: annotate data-race around use_time
xfrm: consistently use time64_t in xfrm_timer_handler()
xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
xfrm: compat: change expression for switch in xfrm_xlate64
Fix XFRM-I support for nested ESP tunnels
====================
Link: https://lore.kernel.org/r/20230208114322.266510-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'mlx5-fixes-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2023-02-07
This series provides bug fixes to mlx5 driver.
* tag 'mlx5-fixes-2023-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Serialize module cleanup with reload and remove
net/mlx5: fw_tracer, Zero consumer index when reloading the tracer
net/mlx5: fw_tracer, Clear load bit when freeing string DBs buffers
net/mlx5: Expose SF firmware pages counter
net/mlx5: Store page counters in a single array
net/mlx5e: IPoIB, Show unknown speed instead of error
net/mlx5e: Fix crash unsetting rx-vlan-filter in switchdev mode
net/mlx5: Bridge, fix ageing of peer FDB entries
net/mlx5: DR, Fix potential race in dr_rule_create_rule_nic
net/mlx5e: Update rx ring hw mtu upon each rx-fcs flag change
====================
Link: https://lore.kernel.org/r/20230208030302.95378-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Matthieu Baerts says:
====================
mptcp: fixes for v6.2
Patch 1 clears resources earlier if there is no more reasons to keep
MPTCP sockets alive.
Patches 2 and 3 fix some locking issues visible in some rare corner
cases: the linked issues should be quite hard to reproduce.
Patch 4 makes sure subflows are correctly cleaned after the end of a
connection.
Patch 5 and 6 improve the selftests stability when running in a slow
environment by transfering data for a longer period on one hand and by
stopping the tests when all expected events have been observed on the
other hand.
All these patches fix issues introduced before v6.2.
====================
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
These 'endpoint' tests from 'mptcp_join.sh' selftest start a transfer in
the background and check the status during this transfer.
Once the expected events have been recorded, there is no reason to wait
for the data transfer to finish. It can be stopped earlier to reduce the
execution time by more than half.
For these tests, the exchanged data were not verified. Errors, if any,
were ignored but that's fine, plenty of other tests are looking at that.
It is then OK to mute stderr now that we are sure errors will be printed
(and still ignored) because the transfer is stopped before the end.
Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
A test-case is frequently failing on some extremely slow VMs.
The mptcp transfer completes before the script is able to do
all the required PM manipulation.
Address the issue in the simplest possible way, making the
transfer even more slow.
Additionally dump more info in case of failures, to help debugging
similar problems in the future and init dump_stats var.
Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/323
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the subflow error report callback unconditionally
propagates the fallback subflow status to the owning msk.
If the msk is already orphaned, the above prevents the code
from correctly tracking the msk moving to the TCP_CLOSE state
and doing the appropriate cleanup.
All the above causes increasing memory usage over time and
sporadic self-tests failures.
There is a great deal of infrastructure trying to propagate
correctly the fallback subflow status to the owning mptcp socket,
e.g. via mptcp_subflow_eof() and subflow_sched_work_if_closed():
in the error propagation path we need only to cope with unorphaned
sockets.
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/339
Fixes: 15cc10453398 ("mptcp: deliver ssk errors to msk")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
For consistency, in mptcp_pm_nl_create_listen_socket(), we need to
call the __mptcp_nmpc_socket() under the msk socket lock.
Note that as a side effect, mptcp_subflow_create_socket() needs a
'nested' lockdep annotation, as it will acquire the subflow (kernel)
socket lock under the in-kernel listener msk socket lock.
The current lack of locking is almost harmless, because the relevant
socket is not exposed to the user space, but in future we will add
more complexity to the mentioned helper, let's play safe.
Fixes: 1729cf186d8a ("mptcp: create the listening socket for new port")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to call the __mptcp_nmpc_socket(), and later subflow socket
access under the msk socket lock, or e.g. a racing connect() could
change the socket status under the hood, with unexpected results.
Fixes: 54635bd04701 ("mptcp: add TCP_FASTOPEN_CONNECT socket option")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the peer closes all the existing subflows for a given
mptcp socket and later the application closes it, the current
implementation let it survive until the timewait timeout expires.
While the above is allowed by the protocol specification it
consumes resources for almost no reason and additionally
causes sporadic self-tests failures.
Let's move the mptcp socket to the TCP_CLOSE state when there are
no alive subflows at close time, so that the allocated resources
will be freed immediately.
Fixes: e16163b6e2b7 ("mptcp: refactor shutdown and close")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arınç reports that on his MT7621AT Unielec U7621-06 board and MT7623NI
Bananapi BPI-R2, packets received by the CPU over mt7530 switch port 0
(of which this driver acts as the DSA master) are not processed
correctly by software. More precisely, they arrive without a DSA tag
(in packet or in the hwaccel area - skb_metadata_dst()), so DSA cannot
demux them towards the switch's interface for port 0. Traffic from other
ports receives a skb_metadata_dst() with the correct port and is demuxed
properly.
Looking at mtk_poll_rx(), it becomes apparent that this driver uses the
skb vlan hwaccel area:
union {
u32 vlan_all;
struct {
__be16 vlan_proto;
__u16 vlan_tci;
};
};
as a temporary storage for the VLAN hwaccel tag, or the DSA hwaccel tag.
If this is a DSA master it's a DSA hwaccel tag, and finally clears up
the skb VLAN hwaccel header.
I'm guessing that the problem is the (mis)use of API.
skb_vlan_tag_present() looks like this:
#define skb_vlan_tag_present(__skb) (!!(__skb)->vlan_all)
So if both vlan_proto and vlan_tci are zeroes, skb_vlan_tag_present()
returns precisely false. I don't know for sure what is the format of the
DSA hwaccel tag, but I surely know that lowermost 3 bits of vlan_proto
are 0 when receiving from port 0:
unsigned int port = vlan_proto & GENMASK(2, 0);
If the RX descriptor has no other bits set to non-zero values in
RX_DMA_VTAG, then the call to __vlan_hwaccel_put_tag() will not, in
fact, make the subsequent skb_vlan_tag_present() return true, because
it's implemented like this:
static inline void __vlan_hwaccel_put_tag(struct sk_buff *skb,
__be16 vlan_proto, u16 vlan_tci)
{
skb->vlan_proto = vlan_proto;
skb->vlan_tci = vlan_tci;
}
What we need to do to fix this problem (assuming this is the problem) is
to stop using skb->vlan_all as temporary storage for driver affairs, and
just create some local variables that serve the same purpose, but
hopefully better. Instead of calling skb_vlan_tag_present(), let's look
at a boolean has_hwaccel_tag which we set to true when the RX DMA
descriptors have something. Disambiguate based on netdev_uses_dsa()
whether this is a VLAN or DSA hwaccel tag, and only call
__vlan_hwaccel_put_tag() if we're certain it's a VLAN tag.
Arınç confirms that the treatment works, so this validates the
assumption.
Link: https://lore.kernel.org/netdev/704f3a72-fc9e-714a-db54-272e17612637@arinc9.com/
Fixes: 2d7605a72906 ("net: ethernet: mtk_eth_soc: enable hardware DSA untagging")
Reported-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
Unsupported port speed can be set and cause error. Now fixing it
and return an error if setting unsupported speed.
This fix depends on the following, which was included in v6.2-rc1:
commit a61474c41e8c ("nfp: ethtool: support reporting link modes").
Fixes: 7c698737270f ("nfp: add support for .set_link_ksettings()")
Signed-off-by: Yu Xiao <yu.xiao@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This code fix a bug that sk->sk_txrehash gets its default enable
value from sysctl_txrehash only when the socket is a TCP listener.
We should have sysctl_txrehash to set the default sk->sk_txrehash,
no matter TCP, nor listerner/connector.
Tested by following packetdrill:
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 socket(..., SOCK_DGRAM, IPPROTO_UDP) = 4
// SO_TXREHASH == 74, default to sysctl_txrehash == 1
+0 getsockopt(3, SOL_SOCKET, 74, [1], [4]) = 0
+0 getsockopt(4, SOL_SOCKET, 74, [1], [4]) = 0
Fixes: 26859240e4ee ("txhash: Add socket option to control TX hash rethink behavior")
Signed-off-by: Kevin Yang <yyd@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Parameters 'queue_index' and 'napi_id' are passed in a swapped order.
Fix it here.
Fixes: 23233e577ef9 ("net: ethernet: mtk_eth_soc: rely on page_pool for single page buffers")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The special tag is only enabled when the first MAC uses DSA. However, it
must be enabled when any MAC uses DSA. Change the check accordingly.
This fixes hardware DSA untagging not working on the second MAC of the
MT7621 and MT7623 SoCs, and likely other SoCs too. Therefore, remove the
check that disables hardware DSA untagging for the second MAC of the MT7621
and MT7623 SoCs.
Fixes: a1f47752fd62 ("net: ethernet: mtk_eth_soc: disable hardware DSA untagging for second MAC")
Co-developed-by: Richard van Schagen <richard@routerhints.com>
Signed-off-by: Richard van Schagen <richard@routerhints.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The > needs be >= to prevent an out of bounds access.
Fixes: de5ca4c3852f ("net: sched: sch: Bounds check priority")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/Y+D+KN18FQI2DKLq@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2023-02-06 (ice)
This series contains updates to ice driver only.
Ani removes WQ_MEM_RECLAIM flag from workqueue to resolve
check_flush_dependency warning.
Michal fixes KASAN out-of-bounds warning.
Brett corrects behaviour for port VLAN Rx filters to prevent receiving
of unintended traffic.
Dan Carpenter fixes possible off by one issue.
Zhang Changzhong adjusts error path for switch recipe to prevent memory
leak.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: switch: fix potential memleak in ice_add_adv_recipe()
ice: Fix off by one in ice_tc_forward_to_queue()
ice: Fix disabling Rx VLAN filtering with port VLAN enabled
ice: fix out-of-bounds KASAN warning in virtchnl
ice: Do not use WQ_MEM_RECLAIM flag for workqueue
====================
Link: https://lore.kernel.org/r/20230206232934.634298-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On some platforms, 100/1000/2500 speeds seem to have sometimes problems
reporting false positive tx unit hang during stressful UDP traffic. Likely
other Intel drivers introduce responses to a tx hang. Update the 'tx hang'
comparator with the comparison of the head and tail of ring pointers and
restore the tx_timeout_factor to the previous value (one).
This can be test by using netperf or iperf3 applications.
Example:
iperf3 -s -p 5001
iperf3 -c 192.168.0.2 --udp -p 5001 --time 600 -b 0
netserver -p 16604
netperf -H 192.168.0.2 -l 600 -p 16604 -t UDP_STREAM -- -m 64000
Fixes: b27b8dc77b5e ("igc: Increase timeout value for Speed 100/1000/2500")
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20230206235818.662384-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After calling irq_set_affinity_and_hint(), the cpumask pointer is
saved in desc->affinity_hint, and will be used later when reading
/proc/irq/<num>/affinity_hint. So the cpumask variable needs to be
persistent. Otherwise, we are accessing freed memory when reading
the affinity_hint file.
Also, need to clear affinity_hint before free_irq(), otherwise there
is a one-time warning and stack trace during module unloading:
[ 243.948687] WARNING: CPU: 10 PID: 1589 at kernel/irq/manage.c:1913 free_irq+0x318/0x360
...
[ 243.948753] Call Trace:
[ 243.948754] <TASK>
[ 243.948760] mana_gd_remove_irqs+0x78/0xc0 [mana]
[ 243.948767] mana_gd_remove+0x3e/0x80 [mana]
[ 243.948773] pci_device_remove+0x3d/0xb0
[ 243.948778] device_remove+0x46/0x70
[ 243.948782] device_release_driver_internal+0x1fe/0x280
[ 243.948785] driver_detach+0x4e/0xa0
[ 243.948787] bus_remove_driver+0x70/0xf0
[ 243.948789] driver_unregister+0x35/0x60
[ 243.948792] pci_unregister_driver+0x44/0x90
[ 243.948794] mana_driver_exit+0x14/0x3fe [mana]
[ 243.948800] __do_sys_delete_module.constprop.0+0x185/0x2f0
To fix the bug, use the persistent mask, cpumask_of(cpu#), and set
affinity_hint to NULL before freeing the IRQ, as required by free_irq().
Cc: stable@vger.kernel.org
Fixes: 71fa6887eeca ("net: mana: Assign interrupts to CPUs based on NUMA nodes")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/1675718929-19565-1-git-send-email-haiyangz@microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'linux-can-fixes-for-6.2-20230207' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
can 2023-02-07
The patch is from Devid Antonio Filoni and fixes an address claiming
problem in the J1939 CAN protocol.
* tag 'linux-can-fixes-for-6.2-20230207' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: j1939: do not wait 250 ms if the same addr was already claimed
====================
Link: https://lore.kernel.org/r/20230207140514.2885065-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, remove and reload flows can run in parallel to module cleanup.
This design is error prone. For example: aux_drivers callbacks are called
from both cleanup and remove flows with different lockings, which can
cause a deadlock[1].
Hence, serialize module cleanup with reload and remove.
[1]
cleanup remove
------- ------
auxiliary_driver_unregister();
devl_lock()
auxiliary_device_delete(mlx5e_aux)
device_lock(mlx5e_aux)
devl_lock()
device_lock(mlx5e_aux)
Fixes: 912cebf420c2 ("net/mlx5e: Connect ethernet part to auxiliary bus")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When tracer is reloaded, the device will log the traces at the
beginning of the log buffer. Also, driver is reading the log buffer in
chunks in accordance to the consumer index.
Hence, zero consumer index when reloading the tracer.
Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Whenever the driver is reading the string DBs into buffers, the driver
is setting the load bit, but the driver never clears this bit.
As a result, in case load bit is on and the driver query the device for
new string DBs, the driver won't read again the string DBs.
Fix it by clearing the load bit when query the device for new string
DBs.
Fixes: 2d69356752ff ("net/mlx5: Add support for fw live patch event")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Currently, each core device has VF pages counter which stores number of
fw pages used by its VFs and SFs.
The current design led to a hang when performing firmware reset on DPU,
where the DPU PFs stalled in sriov unload flow due to waiting on release
of SFs pages instead of waiting on only VFs pages.
Thus, Add a separate counter for SF firmware pages, which will prevent
the stall scenario described above.
Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Currently, an independent page counter is used for tracking memory usage
for each function type such as VF, PF and host PF (DPU).
For better code-readibilty, use a single array that stores
the number of allocated memory pages for each function type.
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
ethtool is returning an error for unknown speeds for the IPoIB interface:
$ ethtool ib0
netlink error: failed to retrieve link settings
netlink error: Invalid argument
netlink error: failed to retrieve link settings
netlink error: Invalid argument
Settings for ib0:
Link detected: no
After this change, ethtool will return success and show "unknown speed":
$ ethtool ib0
Settings for ib0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Full
Auto-negotiation: off
Port: Other
PHYAD: 0
Transceiver: internal
Link detected: no
Fixes: eb234ee9d541 ("net/mlx5e: IPoIB, Add support for get_link_ksettings in ethtool")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Moving to switchdev mode with rx-vlan-filter on and then setting it off
causes the kernel to crash since fs->vlan is freed during nic profile
cleanup flow.
RX VLAN filtering is not supported in switchdev mode so unset it when
changing to switchdev and restore its value when switching back to
legacy.
trace:
[] RIP: 0010:mlx5e_disable_cvlan_filter+0x43/0x70
[] set_feature_cvlan_filter+0x37/0x40 [mlx5_core]
[] mlx5e_handle_feature+0x3a/0x60 [mlx5_core]
[] mlx5e_set_features+0x6d/0x160 [mlx5_core]
[] __netdev_update_features+0x288/0xa70
[] ethnl_set_features+0x309/0x380
[] ? __nla_parse+0x21/0x30
[] genl_family_rcv_msg_doit.isra.17+0x110/0x150
[] genl_rcv_msg+0x112/0x260
[] ? features_reply_size+0xe0/0xe0
[] ? genl_family_rcv_msg_doit.isra.17+0x150/0x150
[] netlink_rcv_skb+0x4e/0x100
[] genl_rcv+0x24/0x40
[] netlink_unicast+0x1ab/0x290
[] netlink_sendmsg+0x257/0x4f0
[] sock_sendmsg+0x5c/0x70
Fixes: cb67b832921c ("net/mlx5e: Introduce SRIOV VF representors")
Signed-off-by: Amir Tzin <amirtz@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
SWITCHDEV_FDB_ADD_TO_BRIDGE event handler that updates FDB entry 'lastuse'
field is only executed for eswitch that owns the entry. However, if peer
entry processed packets at least once it will have hardware counter 'used'
value greater than entry 'lastuse' from that point on, which will cause FDB
entry not being aged out.
Process the event on all eswitch instances.
Fixes: ff9b7521468b ("net/mlx5: Bridge, support LAG")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Selecting builder should be protected by the lock to prevent the case
where a new rule sets a builder in the nic_matcher while the previous
rule is still using the nic_matcher.
Fixing this issue and cleaning the error flow.
Fixes: b9b81e1e9382 ("net/mlx5: DR, For short chains of STEs, avoid allocating ste_arr dynamically")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
rq->hw_mtu is used in function en_rx.c/mlx5e_skb_from_cqe_mpwrq_linear()
to catch oversized packets. If FCS is concatenated to the end of the
packet then the check should be updated accordingly.
Rx rings initialization (mlx5e_init_rxq_rq()) invoked for every new set
of channels, as part of mlx5e_safe_switch_params(), unknowingly if it
runs with default configuration or not. Current rq->hw_mtu
initialization assumes default configuration and ignores
params->scatter_fcs_en flag state.
Fix this, by accounting for params->scatter_fcs_en flag state during
rq->hw_mtu initialization.
In addition, updating rq->hw_mtu value during ingress traffic might
lead to packets drop and oversize_pkts_sw_drop counter increase with no
good reason. Hence we remove this optimization and switch the set of
channels with a new one, to make sure we don't get false positives on
the oversize_pkts_sw_drop counter.
Fixes: 102722fc6832 ("net/mlx5e: Add support for RXFCS feature flag")
Signed-off-by: Adham Faris <afaris@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
- Fix handling of multiple OF framebuffer devices
- Fix booting on Socionext Synquacer with bad 'dma-ranges' entries
- Add DT binding .yamllint to .gitignore
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Merge tag 'devicetree-fixes-for-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix handling of multiple OF framebuffer devices
- Fix booting on Socionext Synquacer with bad 'dma-ranges' entries
- Add DT binding .yamllint to .gitignore
* tag 'devicetree-fixes-for-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: interrupt-controller: arm,gic-v3: Fix typo in description of msi-controller property
dt-bindings: Fix .gitignore
of/address: Return an error when no valid dma-ranges are found
of: Make OF framebuffer device names unique
With the fix that made poll() and select() block if read would block
caused a slight regression in rasdaemon, as it needed that kind
of behavior. Add a way to make that behavior come back by writing
zero into the "buffer_percentage", which means to never block on read.
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Merge tag 'trace-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fix from Steven Rostedt:
"Fix regression in poll() and select()
With the fix that made poll() and select() block if read would block
caused a slight regression in rasdaemon, as it needed that kind of
behavior. Add a way to make that behavior come back by writing zero
into the 'buffer_percentage', which means to never block on read"
* tag 'trace-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix poll() and select() do not work on per_cpu trace_pipe and trace_pipe_raw
The ISO 11783-5 standard, in "4.5.2 - Address claim requirements", states:
d) No CF shall begin, or resume, transmission on the network until 250
ms after it has successfully claimed an address except when
responding to a request for address-claimed.
But "Figure 6" and "Figure 7" in "4.5.4.2 - Address-claim
prioritization" show that the CF begins the transmission after 250 ms
from the first AC (address-claimed) message even if it sends another AC
message during that time window to resolve the address contention with
another CF.
As stated in "4.4.2.3 - Address-claimed message":
In order to successfully claim an address, the CF sending an address
claimed message shall not receive a contending claim from another CF
for at least 250 ms.
As stated in "4.4.3.2 - NAME management (NM) message":
1) A commanding CF can
d) request that a CF with a specified NAME transmit the address-
claimed message with its current NAME.
2) A target CF shall
d) send an address-claimed message in response to a request for a
matching NAME
Taking the above arguments into account, the 250 ms wait is requested
only during network initialization.
Do not restart the timer on AC message if both the NAME and the address
match and so if the address has already been claimed (timer has expired)
or the AC message has been sent to resolve the contention with another
CF (timer is still running).
Signed-off-by: Devid Antonio Filoni <devid.filoni@egluetechnologies.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/all/20221125170418.34575-1-devid.filoni@egluetechnologies.com
Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Currently only the network namespace of devlink instance is monitored
for port events. If netdev is moved to a different namespace and then
unregistered, NETDEV_PRE_UNINIT is missed which leads to trigger
following WARN_ON in devl_port_unregister().
WARN_ON(devlink_port->type != DEVLINK_PORT_TYPE_NOTSET);
Fix this by changing the netdev notifier from per-net to global so no
event is missed.
Fixes: 02a68a47eade ("net: devlink: track netdev with devlink_port assigned")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230206094151.2557264-1-jiri@resnulli.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
We have two IS1 filters of the OCELOT_VCAP_KEY_ANY key type (the one with
"action vlan pop" and the one with "action vlan modify") and one of the
OCELOT_VCAP_KEY_IPV4 key type (the one with "action skbedit priority").
But we have no IS1 filter with the OCELOT_VCAP_KEY_ETYPE key type, and
there was an uncaught breakage there.
To increase test coverage, convert one of the OCELOT_VCAP_KEY_ANY
filters to OCELOT_VCAP_KEY_ETYPE, by making the filter also match on the
MAC SA of the traffic sent by mausezahn, $h1_mac.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20230205192409.1796428-2-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Alternative short title: don't instruct the hardware to match on
EtherType with "protocol 802.1Q" flower filters. It doesn't work for the
reasons detailed below.
With a command such as the following:
tc filter add dev $swp1 ingress chain $(IS1 2) pref 3 \
protocol 802.1Q flower skip_sw vlan_id 200 src_mac $h1_mac \
action vlan modify id 300 \
action goto chain $(IS2 0 0)
the created filter is set by ocelot_flower_parse_key() to be of type
OCELOT_VCAP_KEY_ETYPE, and etype is set to {value=0x8100, mask=0xffff}.
This gets propagated all the way to is1_entry_set() which commits it to
hardware (the VCAP_IS1_HK_ETYPE field of the key). Compare this to the
case where src_mac isn't specified - the key type is OCELOT_VCAP_KEY_ANY,
and is1_entry_set() doesn't populate VCAP_IS1_HK_ETYPE.
The problem is that for VLAN-tagged frames, the hardware interprets the
ETYPE field as holding the encapsulated VLAN protocol. So the above
filter will only match those packets which have an encapsulated protocol
of 0x8100, rather than all packets with VLAN ID 200 and the given src_mac.
The reason why this is allowed to occur is because, although we have a
block of code in ocelot_flower_parse_key() which sets "match_protocol"
to false when VLAN keys are present, that code executes too late.
There is another block of code, which executes for Ethernet addresses,
and has a "goto finished_key_parsing" and skips the VLAN header parsing.
By skipping it, "match_protocol" remains with the value it was
initialized with, i.e. "true", and "proto" is set to f->common.protocol,
or 0x8100.
The concept of ignoring some keys rather than erroring out when they are
present but can't be offloaded is dubious in itself, but is present
since the initial commit fe3490e6107e ("net: mscc: ocelot: Hardware
ofload for tc flower filter"), and it's outside of the scope of this
patch to change that.
The problem was introduced when the driver started to interpret the
flower filter's protocol, and populate the VCAP filter's ETYPE field
based on it.
To fix this, it is sufficient to move the code that parses the VLAN keys
earlier than the "goto finished_key_parsing" instruction. This will
ensure that if we have a flower filter with both VLAN and Ethernet
address keys, it won't match on ETYPE 0x8100, because the VLAN key
parsing sets "match_protocol = false".
Fixes: 86b956de119c ("net: mscc: ocelot: support matching on EtherType")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230205192409.1796428-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Frank reports that in a mt7530 setup where some ports are standalone and
some are in a VLAN-aware bridge, 8021q uppers of the standalone ports
lose their VLAN tag on xmit, as seen by the link partner.
This seems to occur because once the other ports join the VLAN-aware
bridge, mt7530_port_vlan_filtering() also calls
mt7530_port_set_vlan_aware(ds, cpu_dp->index), and this affects the way
that the switch processes the traffic of the standalone port.
Relevant is the PVC_EG_TAG bit. The MT7530 documentation says about it:
EG_TAG: Incoming Port Egress Tag VLAN Attribution
0: disabled (system default)
1: consistent (keep the original ingress tag attribute)
My interpretation is that this setting applies on the ingress port, and
"disabled" is basically the normal behavior, where the egress tag format
of the packet (tagged or untagged) is decided by the VLAN table
(MT7530_VLAN_EGRESS_UNTAG or MT7530_VLAN_EGRESS_TAG).
But there is also an option of overriding the system default behavior,
and for the egress tagging format of packets to be decided not by the
VLAN table, but simply by copying the ingress tag format (if ingress was
tagged, egress is tagged; if ingress was untagged, egress is untagged;
aka "consistent). This is useful in 2 scenarios:
- VLAN-unaware bridge ports will always encounter a miss in the VLAN
table. They should forward a packet as-is, though. So we use
"consistent" there. See commit e045124e9399 ("net: dsa: mt7530: fix
tagged frames pass-through in VLAN-unaware mode").
- Traffic injected from the CPU port. The operating system is in god
mode; if it wants a packet to exit as VLAN-tagged, it sends it as
VLAN-tagged. Otherwise it sends it as VLAN-untagged*.
*This is true only if we don't consider the bridge TX forwarding offload
feature, which mt7530 doesn't support.
So for now, make the CPU port always stay in "consistent" mode to allow
software VLANs to be forwarded to their egress ports with the VLAN tag
intact, and not stripped.
Link: https://lore.kernel.org/netdev/trinity-e6294d28-636c-4c40-bb8b-b523521b00be-1674233135062@3c-app-gmx-bs36/
Fixes: e045124e9399 ("net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode")
Reported-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230205140713.1609281-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
