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The apc->eth_stats.rx_cqes is one per NIC (vport), and it's on the
frequent and parallel code path of all queues. So, r/w into this
single shared variable by many threads on different CPUs creates a
lot caching and memory overhead, hence perf regression. And, it's
not accurate due to the high volume concurrent r/w.
For example, a workload is iperf with 128 threads, and with RPS
enabled. We saw perf regression of 25% with the previous patch
adding the counters. And this patch eliminates the regression.
Since the error path of mana_poll_rx_cq() already has warnings, so
keeping the counter and convert it to a per-queue variable is not
necessary. So, just remove this counter from this high frequency
code path.
Also, remove the tx_cqes counter for the same reason. We have
warnings & other counters for errors on that path, and don't need
to count every normal cqe processing.
Cc: stable@vger.kernel.org
Fixes: bd7fc6e1957c ("net: mana: Add new MANA VF performance counters for easier troubleshooting")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/1685115537-31675-1-git-send-email-haiyangz@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
We encountered a crash when using SMCRv2. It is caused by a logical
error in smc_llc_fill_ext_v2().
BUG: kernel NULL pointer dereference, address: 0000000000000014
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 7 PID: 453 Comm: kworker/7:4 Kdump: loaded Tainted: G W E 6.4.0-rc3+ #44
Workqueue: events smc_llc_add_link_work [smc]
RIP: 0010:smc_llc_fill_ext_v2+0x117/0x280 [smc]
RSP: 0018:ffffacb5c064bd88 EFLAGS: 00010282
RAX: ffff9a6bc1c3c02c RBX: ffff9a6be3558000 RCX: 0000000000000000
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 000000000000000a
RBP: ffffacb5c064bdb8 R08: 0000000000000040 R09: 000000000000000c
R10: ffff9a6bc0910300 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000002 R14: ffff9a6bc1c3c02c R15: ffff9a6be3558250
FS: 0000000000000000(0000) GS:ffff9a6eefdc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000014 CR3: 000000010b078003 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
smc_llc_send_add_link+0x1ae/0x2f0 [smc]
smc_llc_srv_add_link+0x2c9/0x5a0 [smc]
? cc_mkenc+0x40/0x60
smc_llc_add_link_work+0xb8/0x140 [smc]
process_one_work+0x1e5/0x3f0
worker_thread+0x4d/0x2f0
? __pfx_worker_thread+0x10/0x10
kthread+0xe5/0x120
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2c/0x50
</TASK>
When an alernate RNIC is available in system, SMC will try to add a new
link based on the RNIC for resilience. All the RMBs in use will be mapped
to the new link. Then the RMBs' MRs corresponding to the new link will be
filled into SMCRv2 LLC ADD LINK messages.
However, smc_llc_fill_ext_v2() mistakenly accesses to unused RMBs which
haven't been mapped to the new link and have no valid MRs, thus causing
a crash. So this patch fixes the logic.
Fixes: b4ba4652b3f8 ("net/smc: extend LLC layer for SMC-Rv2")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When finding the first RMB of link group, it should start from the
current RMB list whose index is 0. So fix it.
Fixes: b4ba4652b3f8 ("net/smc: extend LLC layer for SMC-Rv2")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
UTS_RELEASE has a maximum length of 64 which can cause rxrpc_version to
exceed the 65 byte message limit.
Per the rx spec[1]: "If a server receives a packet with a type value of 13,
and the client-initiated flag set, it should respond with a 65-byte payload
containing a string that identifies the version of AFS software it is
running."
The current implementation causes a compile error when WERROR is turned on
and/or UTS_RELEASE exceeds the length of 49 (making the version string more
than 64 characters).
Fix this by generating the string during module initialisation and limiting
the UTS_RELEASE segment of the string does not exceed 49 chars. We need to
make sure that the 64 bytes includes "linux-" at the front and " AF_RXRPC"
at the back as this may be used in pattern matching.
Fixes: 44ba06987c0b ("RxRPC: Handle VERSION Rx protocol packets")
Reported-by: Kenny Ho <Kenny.Ho@amd.com>
Link: https://lore.kernel.org/r/20230523223944.691076-1-Kenny.Ho@amd.com/
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Kenny Ho <Kenny.Ho@amd.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Andrew Lunn <andrew@lunn.ch>
cc: David Laight <David.Laight@ACULAB.COM>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
Link: https://web.mit.edu/kolya/afs/rx/rx-spec [1]
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
Link: https://lore.kernel.org/r/654974.1685100894@warthog.procyon.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
A recent patch added READ_ONCE() in packet_bind() and packet_bind_spkt()
This is better handled by reading pkt_sk(sk)->num later
in packet_do_bind() while appropriate lock is held.
READ_ONCE() in writers are often an evidence of something being wrong.
Fixes: 822b5a1c17df ("af_packet: Fix data-races of pkt_sk(sk)->num.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230526154342.2533026-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ethtool has some attrs which dump multiple scalars into
an attribute. The spec currently expects one attr per entry.
Fixes: a353318ebf24 ("tools: ynl: populate most of the ethtool spec")
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230526220653.65538-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch fixes the error checking in nfcsim.c.
The DebugFS kernel API is developed in
a way that the caller can safely ignore the errors that
occur during the creation of DebugFS nodes.
Signed-off-by: Osama Muhammad <osmtendev@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the event of a change in XGBE mode, the current auto-negotiation
needs to be reset and the AN cycle needs to be re-triggerred. However,
the current code ignores the return value of xgbe_set_mode(), leading to
false information as the link is declared without checking the status
register.
Fix this by propagating the mode switch status information to
xgbe_phy_status().
Fixes: e57f7a3feaef ("amd-xgbe: Prepare for working with more than one type of phy")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most protos' poll() methods insert a memory barrier between
writes to sk_err and sk_error_report(). This dates back to
commit a4d258036ed9 ("tcp: Fix race in tcp_poll").
I guess we should do the same thing in TLS, tcp_poll() does
not hold the socket lock.
Fixes: 3c4d7559159b ("tls: kernel TLS support")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'mlx5-fixes-2023-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2023-05-24
This series includes bug fixes for the mlx5 driver.
* tag 'mlx5-fixes-2023-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
Documentation: net/mlx5: Wrap notes in admonition blocks
Documentation: net/mlx5: Add blank line separator before numbered lists
Documentation: net/mlx5: Use bullet and definition lists for vnic counters description
Documentation: net/mlx5: Wrap vnic reporter devlink commands in code blocks
net/mlx5: Fix check for allocation failure in comp_irqs_request_pci()
net/mlx5: DR, Add missing mutex init/destroy in pattern manager
net/mlx5e: Move Ethernet driver debugfs to profile init callback
net/mlx5e: Don't attach netdev profile while handling internal error
net/mlx5: Fix post parse infra to only parse every action once
net/mlx5e: Use query_special_contexts cmd only once per mdev
net/mlx5: fw_tracer, Fix event handling
net/mlx5: SF, Drain health before removing device
net/mlx5: Drain health before unregistering devlink
net/mlx5e: Do not update SBCM when prio2buffer command is invalid
net/mlx5e: Consider internal buffers size in port buffer calculations
net/mlx5e: Prevent encap offload when neigh update is running
net/mlx5e: Extract remaining tunnel encap code to dedicated file
====================
Link: https://lore.kernel.org/r/20230525034847.99268-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
syzkaller found a data race of pkt_sk(sk)->num.
The value is changed under lock_sock() and po->bind_lock, so we
need READ_ONCE() to access pkt_sk(sk)->num without these locks in
packet_bind_spkt(), packet_bind(), and sk_diag_fill().
Note that WRITE_ONCE() is already added by commit c7d2ef5dd4b0
("net/packet: annotate accesses to po->bind").
BUG: KCSAN: data-race in packet_bind / packet_do_bind
write (marked) to 0xffff88802ffd1cee of 2 bytes by task 7322 on cpu 0:
packet_do_bind+0x446/0x640 net/packet/af_packet.c:3236
packet_bind+0x99/0xe0 net/packet/af_packet.c:3321
__sys_bind+0x19b/0x1e0 net/socket.c:1803
__do_sys_bind net/socket.c:1814 [inline]
__se_sys_bind net/socket.c:1812 [inline]
__x64_sys_bind+0x40/0x50 net/socket.c:1812
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x72/0xdc
read to 0xffff88802ffd1cee of 2 bytes by task 7318 on cpu 1:
packet_bind+0xbf/0xe0 net/packet/af_packet.c:3322
__sys_bind+0x19b/0x1e0 net/socket.c:1803
__do_sys_bind net/socket.c:1814 [inline]
__se_sys_bind net/socket.c:1812 [inline]
__x64_sys_bind+0x40/0x50 net/socket.c:1812
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x72/0xdc
value changed: 0x0300 -> 0x0000
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7318 Comm: syz-executor.4 Not tainted 6.3.0-13380-g7fddb5b5300c #4
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Fixes: 96ec6327144e ("packet: Diag core and basic socket info dumping")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20230524232934.50950-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Python 3.9.0 or newer supports combining dicts() with |,
but older versions of Python are still used in the wild
(e.g. on CentOS 8, which goes EoL May 31, 2024).
With Python 3.6.8 we get:
TypeError: unsupported operand type(s) for |: 'dict' and 'dict'
Use older syntax. Tested with non-legacy families only.
Fixes: f036d936ca57 ("tools: ynl: Add fixed-header support to ynl")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Tested-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230524170712.2036128-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Simon Kapadia reported the following issue:
<quote>
The Online Amateur Radio Community (OARC) has recently been experimenting
with building a nationwide packet network in the UK.
As part of our experimentation, we have been testing out packet on 300bps HF,
and playing with net/rom. For HF packet at this baud rate you really need
to make sure that your MTU is relatively low; AX.25 suggests a PACLEN of 60,
and a net/rom PACLEN of 40 to go with that.
However the Linux net/rom support didn't work with a low PACLEN;
the mkiss module would truncate packets if you set the PACLEN below about 200 or so, e.g.:
Apr 19 14:00:51 radio kernel: [12985.747310] mkiss: ax1: truncating oversized transmit packet!
This didn't make any sense to me (if the packets are smaller why would they
be truncated?) so I started investigating.
I looked at the packets using ethereal, and found that many were just huge
compared to what I would expect.
A simple net/rom connection request packet had the request and then a bunch
of what appeared to be random data following it:
</quote>
Simon provided a patch that I slightly revised:
Not only we must not use skb_tailroom(), we also do
not want to count NR_NETWORK_LEN twice.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Co-Developed-by: Simon Kapadia <szymon@kapadia.pl>
Signed-off-by: Simon Kapadia <szymon@kapadia.pl>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Simon Kapadia <szymon@kapadia.pl>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230524141456.1045467-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We encountered a kernel call trace issue which was related to
ndo_xdp_xmit callback on our i.MX8MP platform. The reproduce
steps show as follows.
1. The FEC port (eth0) connects to a PC port, and the PC uses
pktgen_sample03_burst_single_flow.sh to generate packets and
send these packets to the FEC port. Notice that the script must
be executed before step 2.
2. Run the "./xdp_redirect eth0 eth1" command on i.MX8MP, the
eth1 interface is the dwmac. Then there will be a call trace
issue soon. Please see the log for more details.
The root cause is that the NETDEV_XDP_ACT_NDO_XMIT feature is
enabled by default, so when the step 2 command is exexcuted
and packets have already been sent to eth0, the stmmac_xdp_xmit()
starts running before the stmmac_xdp_set_prog() finishes. To
resolve this issue, we disable the NETDEV_XDP_ACT_NDO_XMIT
feature by default and turn on/off this feature when the bpf
program is installed/uninstalled which just like the other
ethernet drivers.
Call Trace log:
[ 306.311271] ------------[ cut here ]------------
[ 306.315910] WARNING: CPU: 0 PID: 15 at lib/timerqueue.c:55 timerqueue_del+0x68/0x70
[ 306.323590] Modules linked in:
[ 306.326654] CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.4.0-rc1+ #37
[ 306.333277] Hardware name: NXP i.MX8MPlus EVK board (DT)
[ 306.338591] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 306.345561] pc : timerqueue_del+0x68/0x70
[ 306.349577] lr : __remove_hrtimer+0x5c/0xa0
[ 306.353777] sp : ffff80000b7c3920
[ 306.357094] x29: ffff80000b7c3920 x28: 0000000000000000 x27: 0000000000000001
[ 306.364244] x26: ffff80000a763a40 x25: ffff0000d0285a00 x24: 0000000000000001
[ 306.371390] x23: 0000000000000001 x22: ffff000179389a40 x21: 0000000000000000
[ 306.378537] x20: ffff000179389aa0 x19: ffff0000d2951308 x18: 0000000000001000
[ 306.385686] x17: f1d3000000000000 x16: 00000000c39c1000 x15: 55e99bbe00001a00
[ 306.392835] x14: 09000900120aa8c0 x13: e49af1d300000000 x12: 000000000000c39c
[ 306.399987] x11: 100055e99bbe0000 x10: ffff8000090b1048 x9 : ffff8000081603fc
[ 306.407133] x8 : 000000000000003c x7 : 000000000000003c x6 : 0000000000000001
[ 306.414284] x5 : ffff0000d2950980 x4 : 0000000000000000 x3 : 0000000000000000
[ 306.421432] x2 : 0000000000000001 x1 : ffff0000d2951308 x0 : ffff0000d2951308
[ 306.428585] Call trace:
[ 306.431035] timerqueue_del+0x68/0x70
[ 306.434706] __remove_hrtimer+0x5c/0xa0
[ 306.438549] hrtimer_start_range_ns+0x2bc/0x370
[ 306.443089] stmmac_xdp_xmit+0x174/0x1b0
[ 306.447021] bq_xmit_all+0x194/0x4b0
[ 306.450612] __dev_flush+0x4c/0x98
[ 306.454024] xdp_do_flush+0x18/0x38
[ 306.457522] fec_enet_rx_napi+0x6c8/0xc68
[ 306.461539] __napi_poll+0x40/0x220
[ 306.465038] net_rx_action+0xf8/0x240
[ 306.468707] __do_softirq+0x128/0x3a8
[ 306.472378] run_ksoftirqd+0x40/0x58
[ 306.475961] smpboot_thread_fn+0x1c4/0x288
[ 306.480068] kthread+0x124/0x138
[ 306.483305] ret_from_fork+0x10/0x20
[ 306.486889] ---[ end trace 0000000000000000 ]---
Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230524125714.357337-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Do skb_put() after a new skb has been successfully allocated otherwise
the reused skb leads to skb_panics or incorrect packet sizes.
Fixes: f92e1869d74e ("Add Mellanox BlueField Gigabit Ethernet driver")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230524194908.147145-1-tbogendoerfer@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- net: fix skb leak in __skb_tstamp_tx()
- eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
Current release - new code bugs:
- handshake:
- fix sock->file allocation
- fix handshake_dup() ref counting
- bluetooth:
- fix potential double free caused by hci_conn_unlink
- fix UAF in hci_conn_hash_flush
Previous releases - regressions:
- core: fix stack overflow when LRO is disabled for virtual interfaces
- tls: fix strparser rx issues
- bpf:
- fix many sockmap/TCP related issues
- fix a memory leak in the LRU and LRU_PERCPU hash maps
- init the offload table earlier
- eth: mlx5e:
- do as little as possible in napi poll when budget is 0
- fix using eswitch mapping in nic mode
- fix deadlock in tc route query code
Previous releases - always broken:
- udplite: fix NULL pointer dereference in __sk_mem_raise_allocated()
- raw: fix output xfrm lookup wrt protocol
- smc: reset connection when trying to use SMCRv2 fails
- phy: mscc: enable VSC8501/2 RGMII RX clock
- eth: octeontx2-pf: fix TSOv6 offload
- eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth and bpf.
Current release - regressions:
- net: fix skb leak in __skb_tstamp_tx()
- eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
Current release - new code bugs:
- handshake:
- fix sock->file allocation
- fix handshake_dup() ref counting
- bluetooth:
- fix potential double free caused by hci_conn_unlink
- fix UAF in hci_conn_hash_flush
Previous releases - regressions:
- core: fix stack overflow when LRO is disabled for virtual
interfaces
- tls: fix strparser rx issues
- bpf:
- fix many sockmap/TCP related issues
- fix a memory leak in the LRU and LRU_PERCPU hash maps
- init the offload table earlier
- eth: mlx5e:
- do as little as possible in napi poll when budget is 0
- fix using eswitch mapping in nic mode
- fix deadlock in tc route query code
Previous releases - always broken:
- udplite: fix NULL pointer dereference in __sk_mem_raise_allocated()
- raw: fix output xfrm lookup wrt protocol
- smc: reset connection when trying to use SMCRv2 fails
- phy: mscc: enable VSC8501/2 RGMII RX clock
- eth: octeontx2-pf: fix TSOv6 offload
- eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize"
* tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated().
net: phy: mscc: enable VSC8501/2 RGMII RX clock
net: phy: mscc: remove unnecessary phydev locking
net: phy: mscc: add support for VSC8501
net: phy: mscc: add VSC8502 to MODULE_DEVICE_TABLE
net/handshake: Enable the SNI extension to work properly
net/handshake: Unpin sock->file if a handshake is cancelled
net/handshake: handshake_genl_notify() shouldn't ignore @flags
net/handshake: Fix uninitialized local variable
net/handshake: Fix handshake_dup() ref counting
net/handshake: Remove unneeded check from handshake_dup()
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
net: ethernet: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
docs: netdev: document the existence of the mail bot
net: fix skb leak in __skb_tstamp_tx()
r8169: Use a raw_spinlock_t for the register locks.
page_pool: fix inconsistency for page_pool_ring_[un]lock()
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
...
Fixes for the 6.4 cycle:
* Fix power_supply_get_battery_info for devices without parent
devices resulting in NULL pointer dereference
* Fix desktop systems reporting to run on battery once a power-supply
device with device scope appears (e.g. a HID keyboard with a battery)
* Ratelimit debug print about driver not providing data
* Fix race condition related to external_power_changed in multiple
drivers (ab8500, axp288, bq25890, sc27xx, bq27xxx)
* Fix LED trigger switching from blinking to solid-on when charging
finishes
* Fix multiple races in bq27xxx battery driver
* mt6360: handle potential ENOMEM from devm_work_autocancel
* sbs-charger: Fix SBS_CHARGER_STATUS_CHARGE_INHIBITED bit
* rt9467: avoid passing 0 to dev_err_probe
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Merge tag 'for-v6.4-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply fixes from Sebastian Reichel:
- Fix power_supply_get_battery_info for devices without parent devices
resulting in NULL pointer dereference
- Fix desktop systems reporting to run on battery once a power-supply
device with device scope appears (e.g. a HID keyboard with a battery)
- Ratelimit debug print about driver not providing data
- Fix race condition related to external_power_changed in multiple
drivers (ab8500, axp288, bq25890, sc27xx, bq27xxx)
- Fix LED trigger switching from blinking to solid-on when charging
finishes
- Fix multiple races in bq27xxx battery driver
- mt6360: handle potential ENOMEM from devm_work_autocancel
- sbs-charger: Fix SBS_CHARGER_STATUS_CHARGE_INHIBITED bit
- rt9467: avoid passing 0 to dev_err_probe
* tag 'for-v6.4-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (21 commits)
power: supply: Fix logic checking if system is running from battery
power: supply: mt6360: add a check of devm_work_autocancel in mt6360_charger_probe
power: supply: sbs-charger: Fix INHIBITED bit for Status reg
power: supply: rt9467: Fix passing zero to 'dev_err_probe'
power: supply: Ratelimit no data debug output
power: supply: Fix power_supply_get_battery_info() if parent is NULL
power: supply: bq24190: Call power_supply_changed() after updating input current
power: supply: bq25890: Call power_supply_changed() after updating input current or voltage
power: supply: bq27xxx: Use mod_delayed_work() instead of cancel() + schedule()
power: supply: bq27xxx: After charger plug in/out wait 0.5s for things to stabilize
power: supply: bq27xxx: Ensure power_supply_changed() is called on current sign changes
power: supply: bq27xxx: Move bq27xxx_battery_update() down
power: supply: bq27xxx: Add cache parameter to bq27xxx_battery_current_and_status()
power: supply: bq27xxx: Fix poll_interval handling and races on remove
power: supply: bq27xxx: Fix I2C IRQ race on remove
power: supply: bq27xxx: Fix bq27xxx_battery_update() race condition
power: supply: leds: Fix blink to LED on transition
power: supply: sc27xx: Fix external_power_changed race
power: supply: bq25890: Fix external_power_changed race
power: supply: axp288_fuel_gauge: Fix external_power_changed race
...
- HD-audio runtime PM bug fix
- A couple of HD-audio quirks
- Fix series of ASoC Intel AVS drivers
- ASoC DPCM fix for a bug found on new Intel systems
- A few other ASoC device-specific small fixes
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Merge tag 'sound-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes:
- HD-audio runtime PM bug fix
- A couple of HD-audio quirks
- Fix series of ASoC Intel AVS drivers
- ASoC DPCM fix for a bug found on new Intel systems
- A few other ASoC device-specific small fixes"
* tag 'sound-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Enable headset onLenovo M70/M90
ASoC: dwc: move DMA init to snd_soc_dai_driver probe()
ASoC: cs35l41: Fix default regmap values for some registers
ALSA: hda: Fix unhandled register update during auto-suspend period
ASoC: dt-bindings: tlv320aic32x4: Fix supply names
ASoC: Intel: avs: Add missing checks on FE startup
ASoC: Intel: avs: Fix avs_path_module::instance_id size
ASoC: Intel: avs: Account for UID of ACPI device
ASoC: Intel: avs: Fix declaration of enum avs_channel_config
ASoC: Intel: Skylake: Fix declaration of enum skl_ch_cfg
ASoC: Intel: avs: Access path components under lock
ASoC: Intel: avs: Fix module lookup
ALSA: hda/ca0132: add quirk for EVGA X299 DARK
ASoC: soc-pcm: test if a BE can be prepared
ASoC: rt5682: Disable jack detection interrupt during suspend
ASoC: lpass: Fix for KASAN use_after_free out of bounds
A small set of assorted bug fixes for 6.4.
The following is an automated git shortlog grouped by driver:
ISST:
- Remove 8 socket limit
asus-wmi:
- Ignore WMI events with codes 0x7B, 0xC0
platform/mellanox:
- mlxbf-pmc: fix sscanf() error checking
platform/x86/amd/pmf:
- Fix CnQF and auto-mode after resume
platform/x86/intel/ifs:
- Annotate work queue on stack so object debug does not complain
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Merge tag 'platform-drivers-x86-v6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Nothing special to report just a few small fixes"
* tag 'platform-drivers-x86-v6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel/ifs: Annotate work queue on stack so object debug does not complain
platform/x86: ISST: Remove 8 socket limit
platform/mellanox: mlxbf-pmc: fix sscanf() error checking
platform/x86/amd/pmf: Fix CnQF and auto-mode after resume
platform/x86: asus-wmi: Ignore WMI events with codes 0x7B, 0xC0
- Fix user-space crashes on 68020/68030.
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Merge tag 'm68k-for-v6.4-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fix from Geert Uytterhoeven:
- Fix signal frame issue causing user-space crashes on 68020/68030
* tag 'm68k-for-v6.4-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Move signal frame following exception on 68020/030
David Epping says:
====================
net: phy: mscc: support VSC8501
this updated series of patches adds support for the VSC8501 Ethernet
PHY and fixes support for the VSC8502 PHY in cases where no other
software (like U-Boot) has initialized the PHY after power up.
The first patch simply adds the VSC8502 to the MODULE_DEVICE_TABLE,
where I guess it was unintentionally missing. I have no hardware to
test my change.
The second patch adds the VSC8501 PHY with exactly the same driver
implementation as the existing VSC8502.
The (new) third patch removes phydev locking from
vsc85xx_rgmii_set_skews(), as discussed for v2 of the patch set.
The (now) fourth patch fixes the initialization for VSC8501 and VSC8502.
I have tested this patch with VSC8501 on hardware in RGMII mode only.
https://ww1.microchip.com/downloads/aemDocuments/documents/UNG/ProductDocuments/DataSheets/VSC8501-03_Datasheet_60001741A.PDFhttps://ww1.microchip.com/downloads/aemDocuments/documents/UNG/ProductDocuments/DataSheets/VSC8502-03_Datasheet_60001742B.pdf
Table 4-42 "RGMII CONTROL, ADDRESS 20E2 (0X14)" Bit 11 for each of
them.
By default the RX_CLK is disabled for these PHYs. In cases where no
other software, like U-Boot, enabled the clock, this results in no
received packets being handed to the MAC.
The patch enables this clock output.
According to Microchip support (case number 01268776) this applies
to all modes (RGMII, GMII, and MII).
Other PHYs sharing the same register map and code, like
VSC8530/31/40/41 have the clock enabled and the relevant bit 11 is
reserved and read-only for them. As per previous discussion the
patch still clears the bit on these PHYs, too, possibly more easily
supporting other future PHYs implementing this functionality.
For the VSC8572 family of PHYs, having a different register map,
no such changes are applied.
====================
Link: https://lore.kernel.org/r/20230523153108.18548-1-david.epping@missinglinkelectronics.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
By default the VSC8501 and VSC8502 RGMII/GMII/MII RX_CLK output is
disabled. To allow packet forwarding towards the MAC it needs to be
enabled.
For other PHYs supported by this driver the clock output is enabled
by default.
Fixes: d3169863310d ("net: phy: mscc: add support for VSC8502")
Signed-off-by: David Epping <david.epping@missinglinkelectronics.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Holding the struct phy_device (phydev) lock is unnecessary when
accessing phydev->interface in the PHY driver .config_init method,
which is the only place that vsc85xx_rgmii_set_skews() is called from.
The phy_modify_paged() function implements required MDIO bus level
locking, which can not be achieved by a phydev lock.
Signed-off-by: David Epping <david.epping@missinglinkelectronics.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The VSC8501 PHY can use the same driver implementation as the VSC8502.
Adding the PHY ID and copying the handler functions of VSC8502 is
sufficient to operate it.
Signed-off-by: David Epping <david.epping@missinglinkelectronics.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The mscc driver implements support for VSC8502, so its ID should be in
the MODULE_DEVICE_TABLE for automatic loading.
Signed-off-by: David Epping <david.epping@missinglinkelectronics.com>
Fixes: d3169863310d ("net: phy: mscc: add support for VSC8502")
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Chuck Lever says:
====================
Bug fixes for net/handshake
Paolo observed that there is a possible leak of sock->file. I
haven't looked into that yet, but it seems to be separate from
the fixes in this series, so no need to hold these up.
====================
The submissions mentions net-next but it means netdev (perhaps
merge window left over when trees are converged). In any case,
it should have gone into net, but was instead applied to net-next
as commit deb2e484baf9 ("Merge branch 'net-handshake-fixes'").
These are fixes tho, and Chuck needs them to make progress with
the client so double-merging them into net... it is what it is :(
Link: https://lore.kernel.org/r/168381978252.84244.1933636428135211300.stgit@91.116.238.104.host.secureserver.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Enable the upper layer protocol to specify the SNI peername. This
avoids the need for tlshd to use a DNS lookup, which can return a
hostname that doesn't match the incoming certificate's SubjectName.
Fixes: 2fd5532044a8 ("net/handshake: Add a kernel API for requesting a TLSv1.3 handshake")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If user space never calls DONE, sock->file's reference count remains
elevated. Enable sock->file to be freed eventually in this case.
Reported-by: Jakub Kacinski <kuba@kernel.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
trace_handshake_cmd_done_err() simply records the pointer in @req,
so initializing it to NULL is sufficient and safe.
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If get_unused_fd_flags() fails, we ended up calling fput(sock->file)
twice.
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
handshake_req_submit() now verifies that the socket has a file.
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-05-24
We've added 19 non-merge commits during the last 10 day(s) which contain
a total of 20 files changed, 738 insertions(+), 448 deletions(-).
The main changes are:
1) Batch of BPF sockmap fixes found when running against NGINX TCP tests,
from John Fastabend.
2) Fix a memleak in the LRU{,_PERCPU} hash map when bucket locking fails,
from Anton Protopopov.
3) Init the BPF offload table earlier than just late_initcall,
from Jakub Kicinski.
4) Fix ctx access mask generation for 32-bit narrow loads of 64-bit fields,
from Will Deacon.
5) Remove a now unsupported __fallthrough in BPF samples,
from Andrii Nakryiko.
6) Fix a typo in pkg-config call for building sign-file,
from Jeremy Sowden.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
bpf, sockmap: Test shutdown() correctly exits epoll and recv()=0
bpf, sockmap: Build helper to create connected socket pair
bpf, sockmap: Pull socket helpers out of listen test for general use
bpf, sockmap: Incorrectly handling copied_seq
bpf, sockmap: Wake up polling after data copy
bpf, sockmap: TCP data stall on recv before accept
bpf, sockmap: Handle fin correctly
bpf, sockmap: Improved check for empty queue
bpf, sockmap: Reschedule is now done through backlog
bpf, sockmap: Convert schedule_work into delayed_work
bpf, sockmap: Pass skb ownership through read_skb
bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps
bpf: Fix mask generation for 32-bit narrow loads of 64-bit fields
samples/bpf: Drop unnecessary fallthrough
bpf: netdev: init the offload table earlier
selftests/bpf: Fix pkg-config call building sign-file
====================
Link: https://lore.kernel.org/r/20230524170839.13905-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Wrap note paragraphs in note:: directive as it better fit for the
purpose of noting devlink commands.
Fixes: f2d51e579359b7 ("net/mlx5: Separate mlx5 driver documentation into multiple pages")
Fixes: cf14af140a5ad0 ("net/mlx5e: Add vnic devlink health reporter to representors")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
The doc forgets to add separator before numbered lists, which causes the
lists to be appended to previous paragraph inline instead.
Add the missing separator.
Fixes: f2d51e579359b7 ("net/mlx5: Separate mlx5 driver documentation into multiple pages")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
"vnic reporter" section contains unformatted description for vnic
counters, which is rendered as one long paragraph instead of list.
Use bullet and definition lists to match other lists.
Fixes: b0bc615df488ab ("net/mlx5: Add vnic devlink health reporter to PFs/VFs")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
As priv->dfs_root is cleared, and therefore missed, when change
eswitch mode, move the creation of the root debugfs to the init
callback of mlx5e_nic_profile and mlx5e_uplink_rep_profile, and
the destruction to the cleanup callback for symmeter.
Fixes: 288eca60cc31 ("net/mlx5e: Add Ethernet driver debugfs")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
As part of switchdev mode disablement, driver changes port netdevice
profile from uplink to nic. If this process is triggered by health
recovery flow (PCI reset, for ex.) profile attach would fail because all
fw commands aborted when internal error flag is set. As a result, nic
netdevice profile is not attached and driver fails to rollback to uplink
profile, which leave driver in broken state and cause crash later.
To handle broken state do netdevice profile initialization only instead
of full attachment and release mdev resources on driver suspend as
expected. Actual netdevice attachment is done during driver load.
Fixes: c4d7eb57687f ("net/mxl5e: Add change profile method")
Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Caller of mlx5e_tc_act_post_parse() needs it to parse only the subset of
actions starting after previous split and ending at the current action.
However, that range is not provided as arguments and
mlx5e_tc_act_post_parse() uses generic flow_action_for_each() that iterates
over all flow actions. Not only this is redundant, it also causes a bug
when mlx5e_tc_act->post_parse() callback is not idempotent since it will be
called for every split. For example, ct action tc_act_post_parse_ct()
callback obtains a reference to mlx5_ct_ft instance and calling it several
times during parsing stage will cause reference counter imbalance.
Fix the issue by providing a proper action range of the current split
subset to mlx5e_tc_act_post_parse() and only calling
mlx5e_tc_act->post_parse() for actions inside the subset range.
Fixes: 8300f225268b ("net/mlx5e: Create new flow attr for multi table actions")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Don't query the firmware so many times (num rqs * num wqes * wqe frags)
because it slows down linearly the interface creation time when the
product is larger. Do it only once per mdev and store the result in
mlx5e_param.
Due to helper function being called from different files, move it to
an appropriate location. Rename the function with a proper prefix and
add a small cleanup.
This fix applies only for legacy rq.
Fixes: 1b1e4868836a ("net/mlx5e: Use query_special_contexts for mkeys")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
mlx5 driver needs to parse traces with event_id inside the range of
first_string_trace and num_string_trace. However, mlx5 is parsing all
events with event_id >= first_string_trace.
Fix it by checking for the correct range.
Fixes: c71ad41ccb0c ("net/mlx5: FW tracer, events handling")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
There is no point in recovery during device removal. Also, if health
work started need to wait for it to avoid races and NULL pointer
access.
Hence, drain health WQ before removing device.
Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
