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Follow the style used in the core kernel (e.g.
include/linux/etherdevice.h and include/linux/in6.h) for the PTP IPv6
and Ethernet addresses. No functional changes.
Signed-off-by: Alex Austin <alex.austin@amd.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Check if wlan.offload_enable and wlan.offload_disable callbacks are set
in mtk_wed_flow_add/mtk_wed_flow_remove since mt7996 will not rely
on them.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
It can be time consuming to track driver bugs, that might be detected
too late from this confusing warning in skb_try_coalesce()
WARN_ON_ONCE(delta < len);
Add sanity check in skb_add_rx_frag() and skb_coalesce_rx_frag()
to better track bug origin for CONFIG_DEBUG_NET=y builds.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When adding sk->sk_prot->release_cb() call from __sk_flush_backlog()
Paolo suggested using indirect call helpers to take care of
CONFIG_RETPOLINE=y case.
It turns out Google had such mitigation for years in release_sock(),
it is time to make this public :)
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
====================
net: Add Half Duplex support for ICSSG Driver
This series adds support for half duplex operation for ICSSG driver.
In order to support half-duplex operation at 10M and 100M link speeds, the
PHY collision detection signal (COL) should be routed to ICSSG GPIO pin
(PRGx_PRU0/1_GPI10) so that firmware can detect collision signal and apply
the CSMA/CD algorithm applicable for half duplex operation. A DT property,
"ti,half-duplex-capable" is introduced for this purpose in the first patch
of the series. If board has PHY COL pin conencted to PRGx_PRU1_GPIO10,
this DT property can be added to eth node of ICSSG, MII port to support
half duplex operation at that port.
Second patch of the series configures driver to support half-duplex
operation if the DT property "ti,half-duplex-capable" is enabled.
This series addresses comments on [v2]. This series is based on the latest
net-next/main. This series has no dependency.
Changes from v1 to v2:
*) Changed the description of "ti,half-duplex-capable" property as asked
by Rob and Andrew to avoid confusion between capable and enable.
Changes from v1 to v2:
*) Dropped the RFC tag.
*) Added RB tags of Andrew and Roger.
[v1] https://lore.kernel.org/all/20230830113134.1226970-1-danishanwar@ti.com/
[v2] https://lore.kernel.org/all/20230911060200.2164771-1-danishanwar@ti.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for half duplex operation at 10M and 100M link
speeds for AM654x/AM64x devices.
- Driver configures rand_seed, a random number, in DMEM HD_RAND_SEED_OFFSET
field, which will be used by firmware for Back off time calculation.
- Driver informs FW about half duplex link operation in DMEM
PORT_LINK_SPEED_OFFSET field by setting bit 7 for 10/100M HD.
Hence, the half duplex operation depends on board design the
"ti,half-duplex-capable" property has to be enabled for ICSS-G ports if HW
is capable to perform half duplex.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to support half-duplex operation at 10M and 100M link speeds, the
PHY collision detection signal (COL) should be routed to ICSSG
GPIO pin (PRGx_PRU0/1_GPI10) so that firmware can detect collision signal
and apply the CSMA/CD algorithm applicable for half duplex operation. A DT
property, "ti,half-duplex-capable" is introduced for this purpose. If
board has PHY COL pin conencted to PRGx_PRU1_GPIO10, this DT property can
be added to eth node of ICSSG, MII port to support half duplex operation at
that port.
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
We auto-negotiate most ports in the RTL8366RB driver, but
the CPU port is hard-coded to 1Gbit, full duplex, tx and
rx pause.
This isn't very nice. People may configure speed and
duplex differently in the device tree.
Actually respect the arguments passed to the function for
the CPU port, which get passed properly after Russell's
patch "net: dsa: realtek: add phylink_get_caps implementation"
After this the link is still set up properly.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PTP block supports generating PPS output signal on GPIO pin. This patch
adds the support in the PTP PHC driver using standard periodic output
interface.
User can enable/disable/configure PPS by writing to the below sysfs entry
echo perout.index start.sec start.nsec period.sec period.nsec >
/sys/class/ptp/ptp0/period
Example to generate 50% duty cycle PPS signal:
echo 0 0 0 0 500000000 > /sys/class/ptp/ptp0/period
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Sai Krishna <saikrishnag@marvell.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
ipv6: round of data-races fixes
This series is inspired by one related syzbot report.
Many inet6_sk(sk) fields reads or writes are racy.
Move 1-bit fields to inet->inet_flags to provide
atomic safety. inet6_{test|set|clear|assign}_bit() helpers
could be changed later if we need to make room in inet_flags.
Also add missing READ_ONCE()/WRITE_ONCE() when
lockless readers need access to specific fields.
np->srcprefs will be handled separately to avoid merge conflicts
because a prior patch was posted for net tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
np->sndflow reads are racy.
Use one bit ftom atomic inet->inet_flags instead,
IPV6_FLOWINFO_SEND setsockopt() can be lockless.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most np->pmtudisc reads are racy.
Move this 3bit field on a full byte, add annotations
and make IPV6_MTU_DISCOVER setsockopt() lockless.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reads from np->rtalert_isolate are racy.
Move this flag to inet->inet_flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move np->repflow to inet->inet_flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
np->recverr is moved to inet->inet_flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move np->dontfrag flag to inet->inet_flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move np->autoflowlabel and np->autoflowlabel_set in inet->inet_flags,
to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move np->mc_all to an atomic flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move np->recverr_rfc4884 to an atomic flag to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add one missing READ_ONCE() annotation in do_ipv6_getsockopt()
and make IPV6_MINHOPCOUNT setsockopt() lockless.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
np->frag_size can be read/written without holding socket lock.
Add missing annotations and make IPV6_MTU setsockopt() lockless.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes data-races around np->mcast_hops,
and make IPV6_MULTICAST_HOPS lockless.
Note that np->mcast_hops is never negative,
thus can fit an u8 field instead of s16.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add inet6_{test|set|clear|assign}_bit() helpers.
Note that I am using bits from inet->inet_flags,
this might change in the future if we need more flags.
While solving data-races accessing np->mc_loop,
this patch also allows to implement lockless accesses
to np->mcast_hops in the following patch.
Also constify sk_mc_loop() argument.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some np->hop_limit accesses are racy, when socket lock is not held.
Add missing annotations and switch to full lockless implementation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current release - regressions:
- bcmasp: fix possible OOB write in bcmasp_netfilt_get_all_active()
Previous releases - regressions:
- ipv4: fix one memleak in __inet_del_ifa()
- tcp: fix bind() regressions for v4-mapped-v6 addresses.
- tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
- dsa: fixes for SJA1105 FDB regressions
- veth: update XDP feature set when bringing up device
- igb: fix hangup when enabling SR-IOV
Previous releases - always broken:
- kcm: fix memory leak in error path of kcm_sendmsg()
- smc: fix data corruption in smcr_port_add
- microchip: fix possible memory leak for vcap_dup_rule()
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Quite unusually, this does not contains any fix coming from subtrees
(nf, ebpf, wifi, etc).
Current release - regressions:
- bcmasp: fix possible OOB write in bcmasp_netfilt_get_all_active()
Previous releases - regressions:
- ipv4: fix one memleak in __inet_del_ifa()
- tcp: fix bind() regressions for v4-mapped-v6 addresses.
- tls: do not free tls_rec on async operation in
bpf_exec_tx_verdict()
- dsa: fixes for SJA1105 FDB regressions
- veth: update XDP feature set when bringing up device
- igb: fix hangup when enabling SR-IOV
Previous releases - always broken:
- kcm: fix memory leak in error path of kcm_sendmsg()
- smc: fix data corruption in smcr_port_add
- microchip: fix possible memory leak for vcap_dup_rule()"
* tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits)
kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().
net: renesas: rswitch: Add spin lock protection for irq {un}mask
net: renesas: rswitch: Fix unmasking irq condition
igb: clean up in all error paths when enabling SR-IOV
ixgbe: fix timestamp configuration code
selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c.
selftest: tcp: Move expected_errno into each test case in bind_wildcard.c.
selftest: tcp: Fix address length in bind_wildcard.c.
tcp: Fix bind() regression for v4-mapped-v6 non-wildcard address.
tcp: Fix bind() regression for v4-mapped-v6 wildcard address.
tcp: Factorise sk_family-independent comparison in inet_bind2_bucket_match(_addr_any).
ipv6: fix ip6_sock_set_addr_preferences() typo
veth: Update XDP feature set when bringing up device
net: macb: fix sleep inside spinlock
net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
net: ethernet: mtk_eth_soc: fix pse_port configuration for MT7988
net: ethernet: mtk_eth_soc: fix uninitialized variable
kcm: Fix memory leak in error path of kcm_sendmsg()
r8152: check budget for r8152_poll()
net: dsa: sja1105: block FDB accesses that are concurrent with a switch reset
...
The 'state->im' value will always be non-zero after
the 'while' statement, so the check can be removed.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230912084100.1502379-1-Ilia.Gavrilov@infotecs.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The 'state->im' value will always be non-zero after
the 'while' statement, so the check can be removed.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230912084039.1501984-1-Ilia.Gavrilov@infotecs.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Eric Dumazet says:
====================
udp: round of data-races fixes
This series is inspired by multiple syzbot reports.
Many udp fields reads or writes are racy.
Add a proper udp->udp_flags and move there all
flags needing atomic safety.
Also add missing READ_ONCE()/WRITE_ONCE() when
lockless readers need access to specific fields.
====================
Link: https://lore.kernel.org/r/20230912091730.1591459-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
udp->pcflag, udp->pcslen and udp->pcrlen reads/writes are racy.
Move udp->pcflag to udp->udp_flags for atomicity,
and add READ_ONCE()/WRITE_ONCE() annotations for pcslen and pcrlen.
Fixes: ba4e58eca8aa ("[NET]: Supporting UDP-Lite (RFC 3828) in Linux")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This flag is set but never read, we can remove it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Move udp->encap_enabled to udp->udp_flags.
Add udp_test_and_set_bit() helper to allow lockless
udp_tunnel_encap_enable() implementation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
These are read locklessly, move them to udp_flags to fix data-races.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
UDP_ENCAP_ESPINUDP_NON_IKE setsockopt() writes over up->encap_rcv
while other cpus read it.
Fixes: 067b207b281d ("[UDP]: Cleanup UDP encapsulation code")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzbot reported that udp->gro_enabled can be read locklessly.
Use one atomic bit from udp->udp_flags.
Fixes: e20cf8d3f1f7 ("udp: implement GRO for plain UDP sockets.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzbot reported that udp->no_check6_rx can be read locklessly.
Use one atomic bit from udp->udp_flags.
Fixes: 1c19448c9ba6 ("net: Make enabling of zero UDP6 csums more restrictive")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzbot reported that udp->no_check6_tx can be read locklessly.
Use one atomic bit from udp->udp_flags
Fixes: 1c19448c9ba6 ("net: Make enabling of zero UDP6 csums more restrictive")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
According to syzbot, it is time to use proper atomic flags
for various UDP flags.
Add udp_flags field, and convert udp->corkflag to first
bit in it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzkaller found a memory leak in kcm_sendmsg(), and commit c821a88bd720
("kcm: Fix memory leak in error path of kcm_sendmsg()") suppressed it by
updating kcm_tx_msg(head)->last_skb if partial data is copied so that the
following sendmsg() will resume from the skb.
However, we cannot know how many bytes were copied when we get the error.
Thus, we could mess up the MSG_MORE queue.
When kcm_sendmsg() fails for SOCK_DGRAM, we should purge the queue as we
do so for UDP by udp_flush_pending_frames().
Even without this change, when the error occurred, the following sendmsg()
resumed from a wrong skb and the queue was messed up. However, we have
yet to get such a report, and only syzkaller stumbled on it. So, this
can be changed safely.
Note this does not change SOCK_SEQPACKET behaviour.
Fixes: c821a88bd720 ("kcm: Fix memory leak in error path of kcm_sendmsg()")
Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230912022753.33327-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Yoshihiro Shimoda says:
====================
net: renesas: rswitch: Fix a lot of redundant irq issue
After this patch series was applied, a lot of redundant interrupts
no longer occur.
For example: when "iperf3 -c <ipaddr> -R" on R-Car S4-8 Spider
Before the patches are applied: about 800,000 times happened
After the patches were applied: about 100,000 times happened
====================
Link: https://lore.kernel.org/r/20230912014936.3175430-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add spin lock protection for irq {un}mask registers' control.
After napi_complete_done() and this protection were applied,
a lot of redundant interrupts no longer occur.
For example: when "iperf3 -c <ipaddr> -R" on R-Car S4-8 Spider
Before the patches are applied: about 800,000 times happened
After the patches were applied: about 100,000 times happened
Fixes: 3590918b5d07 ("net: ethernet: renesas: Add support for "Ethernet Switch"")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This is based on alx driver commit 881d0327db37 ("net: alx: Work around
the DMA RX overflow issue").
The alx and atl1c drivers had RX overflow error which was why a custom
allocator was created to avoid certain addresses. The simpler workaround
then created for alx driver, but not for atl1c due to lack of tester.
Instead of using a custom allocator, check the allocated skb address and
use skb_reserve() to move away from problematic 0x...fc0 address.
Tested on AR8131 on Acer 4540.
Signed-off-by: Sieng-Piaw Liew <liew.s.piaw@gmail.com>
Link: https://lore.kernel.org/r/20230912010711.12036-1-liew.s.piaw@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Arseniy Krasnov says:
====================
vsock: handle writes to shutdowned socket
this small patchset adds POSIX compliant behaviour on writes to the
socket which was shutdowned with 'shutdown()' (both sides - local with
SHUT_WR flag, peer - with SHUT_RD flag). According POSIX we must send
SIGPIPE in such cases (but SIGPIPE is not send when MSG_NOSIGNAL is set).
First patch is implemented in the same way as net/ipv4/tcp.c:tcp_sendmsg_locked().
It uses 'sk_stream_error()' function which handles EPIPE error. Another
way is to use code from net/unix/af_unix.c:unix_stream_sendmsg() where
same logic from 'sk_stream_error()' is implemented "from scratch", but
it doesn't check 'sk_err' field. I think error from this field has more
priority to be returned from syscall. So I guess it is better to reuse
currently implemented 'sk_stream_error()' function.
Test is also added.
====================
Link: https://lore.kernel.org/r/20230911202027.1928574-1-avkrasnov@salutedevices.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This adds two tests for 'shutdown()' call. It checks that SIGPIPE is
sent when MSG_NOSIGNAL is not set and vice versa. Both flags SHUT_WR
and SHUT_RD are tested.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
