Commit Graph

1296460 Commits

Author SHA1 Message Date
Oleksij Rempel
0cda1acfa2 net: phy: dp83td510: add cable testing support
This patch implements the TDR test procedure as described in
"Application Note DP83TD510E Cable Diagnostics Toolkit revC", section 3.2.

The procedure was tested with "draka 08 signalkabel 2x0.8mm". The reported
cable length was 5 meters more for each 20 meters of actual cable length.
For instance, a 20-meter cable showed as 25 meters, and a 40-meter cable
showed as 50 meters. Since other parts of the diagnostics provided by this
PHY (e.g., Active Link Cable Diagnostics) require accurate cable
characterization to provide proper results, this tuning can be implemented
in a separate patch/interface.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
changes v2:
- add comments
- change post silence time to 1000ms
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240712152848.2479912-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 16:00:44 -07:00
Breno Leitao
e7cdef626f net: dpaa: Fix compilation Warning
Remove variables that are defined and incremented but never read.
This issue appeared in network tests[1] as:

	drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c:38:6: warning: variable 'i' set but not used [-Wunused-but-set-variable]
	38 |         int i = 0;
	   |             ^

Link: https://netdev.bots.linux.dev/static/nipa/870263/13729811/build_clang/stderr [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20240712134817.913756-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:52:49 -07:00
Jakub Kicinski
3771266bf8 eth: mlx5: expose NETIF_F_NTUPLE when ARFS is compiled out
ARFS depends on NTUPLE filters, but the inverse is not true.
Drivers which don't support ARFS commonly still support NTUPLE
filtering. mlx5 has a Kconfig option to disable ARFS (MLX5_EN_ARFS)
and does not advertise NTUPLE filters as a feature at all when ARFS
is compiled out. That's not correct, ntuple filters indeed still work
just fine (as long as MLX5_EN_RXNFC is enabled).

This is needed to make the RSS test not skip all RSS context
related testing.

Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://patch.msgid.link/20240711223722.297676-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:51:21 -07:00
Matthieu Baerts (NGI0)
464b99e77b selftests: mptcp: lib: fix shellcheck errors
It looks like we missed these two errors recently:

  - SC2068: Double quote array expansions to avoid re-splitting elements.
  - SC2145: Argument mixes string and array. Use * or separate argument.

Two simple fixes, it is not supposed to change the behaviour as the
variable names should not have any spaces in their names. Still, better
to fix them to easily spot new issues.

Fixes: f265d3119a ("selftests: mptcp: lib: use setup/cleanup_ns helpers")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240712-upstream-net-next-20240712-selftests-mptcp-fix-shellcheck-v1-1-1cb7180db40a@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:46:26 -07:00
Jakub Kicinski
22767eecd6 Merge branch 'mlx5-misc-2023-07-08-sf-max-eq'
Saeed Mahameed says:

====================
mlx5 misc 2023-07-08 (sf max eq)

Link: https://patchwork.kernel.org/project/netdevbpf/patch/20240708080025.1593555-2-tariqt@nvidia.com/
====================

Link: https://patch.msgid.link/20240712003310.355106-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:44:18 -07:00
Daniel Jurgens
4b66be76a6 net/mlx5: Use set number of max EQs
If a maximum number of EQs has been set for an SF, use that amount.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://patch.msgid.link/20240712003310.355106-5-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:44:16 -07:00
Daniel Jurgens
20d80b95a7 net/mlx5: Set default max eqs for SFs
If the user hasn't configured max_io_eqs set a low default. The SF
driver shouldn't try to create more than this, but FW will enforce this
limit.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://patch.msgid.link/20240712003310.355106-4-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:44:16 -07:00
Daniel Jurgens
2ece6c72ea net/mlx5: Set sf_eq_usage for SF max EQs
When setting max_io_eqs for an SF function also set the sf_eq_usage_cap.
This is to indicate to the SF driver from the PF that the user has set
the max io eqs via devlink. So the SF driver can later query the proper
max eq value from the new cap.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://patch.msgid.link/20240712003310.355106-3-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:44:16 -07:00
Daniel Jurgens
63c6e08eac net/mlx5: IFC updates for SF max IO EQs
Expose a new cap sf_eq_usage. The vhca_resource_manager can write this
cap, indicating the SF driver should use max_num_eqs_24b to determine
how many EQs to use.

Will be used in the next patch, to indicate to the SF driver from the PF
that the user has set the max io eqs via devlink. So the SF driver can
later query the proper max eq value from the new cap.

devlink port function set pci/0000:08:00.0/32768 max_io_eqs 32

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://patch.msgid.link/20240712003310.355106-2-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:44:16 -07:00
Thorsten Blum
f7023b3d69 net: mvpp2: Improve data types and use min()
Change the data type of the variable freq in mvpp2_rx_time_coal_set()
and mvpp2_tx_time_coal_set() to u32 because port->priv->tclk also has
the data type u32.

Change the data type of the function parameter clk_hz in
mvpp2_usec_to_cycles() and mvpp2_cycles_to_usec() to u32 accordingly
and remove the following Coccinelle/coccicheck warning reported by
do_div.cocci:

  WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead

Use min() to simplify the code and improve its readability.

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240711154741.174745-1-thorsten.blum@toblux.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:43:05 -07:00
Danielle Ratson
275a63c9fe net: ethtool: Monotonically increase the message sequence number
Currently, during the module firmware flashing process, unicast
notifications are sent from the kernel using the same sequence number,
making it impossible for user space to track missed notifications.

Monotonically increase the message sequence number, so the order of
notifications could be tracked effectively.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240711080934.2071869-1-danieller@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:37:36 -07:00
Jakub Kicinski
646d2ac752 Merge branch 'tcp-make-simultaneous-connect-rfc-compliant'
Kuniyuki Iwashima says:

====================
tcp: Make simultaneous connect() RFC-compliant.

Patch 1 fixes an issue that BPF TCP option parser is triggered for ACK
instead of SYN+ACK in the case of simultaneous connect().

Patch 2 removes an wrong assumption in tcp_ao/self-connnect tests.

v2: https://lore.kernel.org/netdev/20240708180852.92919-1-kuniyu@amazon.com/
v1: https://lore.kernel.org/netdev/20240704035703.95065-1-kuniyu@amazon.com/
====================

Link: https://patch.msgid.link/20240710171246.87533-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:19:53 -07:00
Kuniyuki Iwashima
b3bb4d23a4 selftests: tcp: Remove broken SNMP assumptions for TCP AO self-connect tests.
tcp_ao/self-connect.c checked the following SNMP stats before/after
connect() to confirm that the test exercises the simultaneous connect()
path.

  * TCPChallengeACK
  * TCPSYNChallenge

But the stats should not be counted for self-connect in the first place,
and the assumption is no longer true.

Let's remove the check.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Dmitry Safonov <dima@arista.com>
Link: https://patch.msgid.link/20240710171246.87533-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:19:49 -07:00
Kuniyuki Iwashima
23e89e8ee7 tcp: Don't drop SYN+ACK for simultaneous connect().
RFC 9293 states that in the case of simultaneous connect(), the connection
gets established when SYN+ACK is received. [0]

      TCP Peer A                                       TCP Peer B

  1.  CLOSED                                           CLOSED
  2.  SYN-SENT     --> <SEQ=100><CTL=SYN>              ...
  3.  SYN-RECEIVED <-- <SEQ=300><CTL=SYN>              <-- SYN-SENT
  4.               ... <SEQ=100><CTL=SYN>              --> SYN-RECEIVED
  5.  SYN-RECEIVED --> <SEQ=100><ACK=301><CTL=SYN,ACK> ...
  6.  ESTABLISHED  <-- <SEQ=300><ACK=101><CTL=SYN,ACK> <-- SYN-RECEIVED
  7.               ... <SEQ=100><ACK=301><CTL=SYN,ACK> --> ESTABLISHED

However, since commit 0c24604b68 ("tcp: implement RFC 5961 4.2"), such a
SYN+ACK is dropped in tcp_validate_incoming() and responded with Challenge
ACK.

For example, the write() syscall in the following packetdrill script fails
with -EAGAIN, and wrong SNMP stats get incremented.

   0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
  +0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)

  +0 > S  0:0(0) <mss 1460,sackOK,TS val 1000 ecr 0,nop,wscale 8>
  +0 < S  0:0(0) win 1000 <mss 1000>
  +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 3308134035 ecr 0,nop,wscale 8>
  +0 < S. 0:0(0) ack 1 win 1000

  +0 write(3, ..., 100) = 100
  +0 > P. 1:101(100) ack 1

  --

  # packetdrill cross-synack.pkt
  cross-synack.pkt:13: runtime error in write call: Expected result 100 but got -1 with errno 11 (Resource temporarily unavailable)
  # nstat
  ...
  TcpExtTCPChallengeACK           1                  0.0
  TcpExtTCPSYNChallenge           1                  0.0

The problem is that bpf_skops_established() is triggered by the Challenge
ACK instead of SYN+ACK.  This causes the bpf prog to miss the chance to
check if the peer supports a TCP option that is expected to be exchanged
in SYN and SYN+ACK.

Let's accept a bare SYN+ACK for active-open TCP_SYN_RECV sockets to avoid
such a situation.

Note that tcp_ack_snd_check() in tcp_rcv_state_process() is skipped not to
send an unnecessary ACK, but this could be a bit risky for net.git, so this
targets for net-next.

Link: https://www.rfc-editor.org/rfc/rfc9293.html#section-3.5-7 [0]
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240710171246.87533-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:19:49 -07:00
Peng Fan
42ffe24286 test/vsock: add install target
Add install target for vsock to make Yocto easy to install the images.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20240710122728.45044-1-peng.fan@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 15:17:35 -07:00
Linus Torvalds
d0d0cd3800 Merge tag '6.10-rc7-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fix from Steve French:
 "Small fix, also for stable"

* tag '6.10-rc7-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix setting SecurityFlags to true
2024-07-13 13:00:25 -07:00
Eric Dumazet
8e5f53a684 MAINTAINERS: add 5 missing tcp-related files
Following files are part of TCP stack:

- net/ipv4/inet_connection_sock.c
- net/ipv4/inet_hashtables.c
- net/ipv4/inet_timewait_sock.c
- net/ipv6/inet6_connection_sock.c
- net/ipv6/inet6_hashtables.c

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240712234213.3178593-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13 09:09:39 -07:00
Steve French
d2346e2836 cifs: fix setting SecurityFlags to true
If you try to set /proc/fs/cifs/SecurityFlags to 1 it
will set them to CIFSSEC_MUST_NTLMV2 which no longer is
relevant (the less secure ones like lanman have been removed
from cifs.ko) and is also missing some flags (like for
signing and encryption) and can even cause mount to fail,
so change this to set it to Kerberos in this case.

Also change the description of the SecurityFlags to remove mention
of flags which are no longer supported.

Cc: stable@vger.kernel.org
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-07-13 09:24:27 -05:00
Tetsuo Handa
ad00e62914 io_uring/net: check socket is valid in io_bind()/io_listen()
We need to check that sock_from_file(req->file) != NULL.

Reported-by: syzbot <syzbot+1e811482aa2c70afa9a0@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=1e811482aa2c70afa9a0
Fixes: 7481fd93fa ("io_uring: Introduce IORING_OP_BIND")
Fixes: ff140cc862 ("io_uring: Introduce IORING_OP_LISTEN")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://lore.kernel.org/r/903da529-eaa3-43ef-ae41-d30f376c60cc@I-love.SAKURA.ne.jp
[axboe: move assignment of sock to where the NULL check is]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-13 06:40:15 -06:00
Thomas Gleixner
b7625d67eb Merge tag 'timers-v6.11-rc1' of https://git.linaro.org/people/daniel.lezcano/linux into timers/core
Pull clocksource/event driver updates from Daniel Lezcano:

  - Remove unnecessary local variables initialization as they will be
    initialized in the code path anyway right after on the ARM arch
    timer and the ARM global timer (Li kunyu)

  - Fix a race condition in the interrupt leading to a deadlock on the
    SH CMT driver. Note that this fix was not tested on the platform
    using this timer but the fix seems reasonable enough to be picked
    confidently (Niklas Söderlund)

  - Increase the rating of the gic-timer and use the configured width
    clocksource register on the MIPS architecture (Jiaxun Yang)

  - Add the DT bindings for the TMU on the Renesas platforms (Geert
    Uytterhoeven)

  - Add the DT bindings for the SOPHGO SG2002 clint on RiscV (Thomas
    Bonnefille)

  - Add the rtl-otto timer driver along with the DT bindings for the
    Realtek platform (Chris Packham)

Link: https://lore.kernel.org/all/91cd05de-4c5d-4242-a381-3b8a4fe6a2a2@linaro.org
2024-07-13 12:07:10 +02:00
Steffen Klassert
d5b60c6517 Merge branch 'Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated ESP data paths'
Mike Yu says:

====================
Currently, IPsec crypto offload is enabled for GRO code path. However, there
are other code paths where the XFRM stack is involved; for example, IPv6 ESP
packets handled by xfrm6_esp_rcv() in ESP layer, and IPv4 UDP-encapsulated
ESP packets handled by udp_rcv() in UDP layer.

This patchset extends the crypto offload support to cover these two cases.
This is useful for devices with traffic accounting (e.g., Android), where GRO
can lead to inaccurate accounting on the underlying network. For example, VPN
traffic might not be counted on the wifi network interface wlan0 if the packets
are handled in GRO code path before entering the network stack for accounting.

Below is the RX data path scenario the crypto offload can be applied to.

  +-----------+   +-------+
  | HW Driver |-->| wlan0 |--------+
  +-----------+   +-------+        |
                                   v
                             +---------------+   +------+
                     +------>| Network Stack |-->| Apps |
                     |       +---------------+   +------+
                     |             |
                     |             v
                 +--------+   +------------+
                 | ipsec1 |<--| XFRM Stack |
                 +--------+   +------------+
====================

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2024-07-13 11:14:04 +02:00
Wolfram Sang
5d89b5bdbc i2c: document new callbacks in i2c_algorithm
When updating the callbacks, adding their kernel-doc was forgotten. Add
it now.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20240712165527.75e4ddc9@canb.auug.org.au
Fixes: a93c2e5fe7 ("i2c: reword i2c_algorithm according to newest specification")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2024-07-13 11:11:58 +02:00
Wolfram Sang
479f18ccca Merge tag 'i2c-host-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow
This release includes significant updates, with the primary
change being the renaming from "master/slave" to
"controller/target" to adhere to I2C v7 and SMBus 3.2 standards.

New Support:

 - Added support for Intel Arrow Lake-H.
 - Added I2C support in the Arioha SoC by linking the Mediatek
   I2C controller.

Cleanups:

 - Added the MODULE_DESCRIPTION() macro, resolving a modpost
   warning in the ALi 1563 Southbridge driver.
 - Constified the regmap_config declaration in the i2c-designware
   driver.
 - Improved the coding style in the Renesas R-Car driver by
   removing unnecessary semicolons after brackets.

General improvements:

 - In the OMAP device, replaced NOIRQ_SYSTEM_SLEEP_PM_OPS with
   RUNTIME_PM_OPS to enable waking up the controller during
   suspend() before suspend_noirq() kicks in.
 - Improved logging in the Xilinx driver.
 - Added a warning (WARN()) in the Renesas R-Car driver for
   spurious interrupts.

DTS Changes:

 - Removed address-cell and size-cell from the Atmel at91sam,
   nVidia Tegra 20, and Samsung S3c2410 devices.
 - Fixed Texas Instruments OMAP4 I2C controller to comply with
   the i2c-controller.yaml schema.
 - Improved indentation in DTS examples for several I2C devices.
 - Converted the NXP LPC1788 binding to the dt-schema.
 - Added documentation for the compatible string
   thead,th1520-i2c.
 - Added the "power-domains" property for the Meson I2C driver.
2024-07-13 11:10:54 +02:00
Wolfram Sang
3fdd2d21f1 Merge tag 'i2c-host-fixes-6.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
This tag includes three fixes for the Renesas R-Car driver:

 1. Ensures the device is in a known state after probing.
 2. Allows clearing the NO_RXDMA flag after a reset.
 3. Forces a reset before any transfer on Gen3+ platforms to
    prevent disruption of the configuration during parallel
    transfers.
2024-07-13 10:50:55 +02:00
Yang Li
b69bdba5a3 swiotlb: fix kernel-doc description for swiotlb_del_transient
Describe the pool argument in the kernel-doc comment for
swiotlb_del_transient.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2024-07-13 07:36:10 +02:00
Jakub Kicinski
69cf87304d Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
idpf: XDP chapter I: convert Rx to libeth

Alexander Lobakin says:

XDP for idpf is currently 5 chapters:
* convert Rx to libeth (this);
* convert Tx and stats to libeth;
* generic XDP and XSk code changes, libeth_xdp;
* actual XDP for idpf via libeth_xdp;
* XSk for idpf (^).

Part I does the following:
* splits &idpf_queue into 4 (RQ, SQ, FQ, CQ) and puts them on a diet;
* ensures optimal cacheline placement, strictly asserts CL sizes;
* moves currently unused/dead singleq mode out of line;
* reuses libeth's Rx ptype definitions and helpers;
* uses libeth's Rx buffer management for both header and payload;
* eliminates memcpy()s and coherent DMA uses on hotpath, uses
  napi_build_skb() instead of in-place short skb allocation.

Most idpf patches, except for the queue split, removes more lines
than adds.

Expect far better memory utilization and +5-8% on Rx depending on
the case (+17% on skb XDP_DROP :>).

* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  idpf: use libeth Rx buffer management for payload buffer
  idpf: convert header split mode to libeth + napi_build_skb()
  libeth: support different types of buffers for Rx
  idpf: remove legacy Page Pool Ethtool stats
  idpf: reuse libeth's definitions of parsed ptype structures
  idpf: compile singleq code only under default-n CONFIG_IDPF_SINGLEQ
  idpf: merge singleq and splitq &net_device_ops
  idpf: strictly assert cachelines of queue and queue vector structures
  idpf: avoid bloating &idpf_q_vector with big %NR_CPUS
  idpf: split &idpf_queue into 4 strictly-typed queue structures
  idpf: stop using macros for accessing queue descriptors
  libeth: add cacheline / struct layout assertion helpers
  page_pool: use __cacheline_group_{begin, end}_aligned()
  cache: add __cacheline_group_{begin, end}_aligned() (+ couple more)
====================

Link: https://patch.msgid.link/20240710203031.188081-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:27:26 -07:00
Jakub Kicinski
26f453176a Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2024-07-12

We've added 23 non-merge commits during the last 3 day(s) which contain
a total of 18 files changed, 234 insertions(+), 243 deletions(-).

The main changes are:

1) Improve BPF verifier by utilizing overflow.h helpers to check
   for overflows, from Shung-Hsi Yu.

2) Fix NULL pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT
   when attr->attach_prog_fd was not specified, from Tengda Wu.

3) Fix arm64 BPF JIT when generating code for BPF trampolines with
   BPF_TRAMP_F_CALL_ORIG which corrupted upper address bits,
   from Puranjay Mohan.

4) Remove test_run callback from lwt_seg6local_prog_ops which never worked
   in the first place and caused syzbot reports,
   from Sebastian Andrzej Siewior.

5) Relax BPF verifier to accept non-zero offset on KF_TRUSTED_ARGS/
   /KF_RCU-typed BPF kfuncs, from Matt Bobrowski.

6) Fix a long standing bug in libbpf with regards to handling of BPF
   skeleton's forward and backward compatibility, from Andrii Nakryiko.

7) Annotate btf_{seq,snprintf}_show functions with __printf,
   from Alan Maguire.

8) BPF selftest improvements to reuse common network helpers in sk_lookup
   test and dropping the open-coded inetaddr_len() and make_socket() ones,
   from Geliang Tang.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (23 commits)
  selftests/bpf: Test for null-pointer-deref bugfix in resolve_prog_type()
  bpf: Fix null pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT
  selftests/bpf: DENYLIST.aarch64: Skip fexit_sleep again
  bpf: use check_sub_overflow() to check for subtraction overflows
  bpf: use check_add_overflow() to check for addition overflows
  bpf: fix overflow check in adjust_jmp_off()
  bpf: Eliminate remaining "make W=1" warnings in kernel/bpf/btf.o
  bpf: annotate BTF show functions with __printf
  bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG
  selftests/bpf: Close obj in error path in xdp_adjust_tail
  selftests/bpf: Null checks for links in bpf_tcp_ca
  selftests/bpf: Use connect_fd_to_fd in sk_lookup
  selftests/bpf: Use start_server_addr in sk_lookup
  selftests/bpf: Use start_server_str in sk_lookup
  selftests/bpf: Close fd in error path in drop_on_reuseport
  selftests/bpf: Add ASSERT_OK_FD macro
  selftests/bpf: Add backlog for network_helper_opts
  selftests/bpf: fix compilation failure when CONFIG_NF_FLOW_TABLE=m
  bpf: Remove tst_run from lwt_seg6local_prog_ops.
  bpf: relax zero fixed offset constraint on KF_TRUSTED_ARGS/KF_RCU
  ...
====================

Link: https://patch.msgid.link/20240712212448.5378-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:25:54 -07:00
Jakub Kicinski
e5abd12f3d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  f7ce5eb2cb ("bnxt_en: Fix crash in bnxt_get_max_rss_ctx_ring()")
  20c8ad72eb ("eth: bnxt: use the RSS context XArray instead of the local list")

Adjacent changes:

net/ethtool/ioctl.c
  503757c809 ("net: ethtool: Fix RSS setting")
  eac9122f0c ("net: ethtool: record custom RSS contexts in the XArray")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:20:30 -07:00
Jakub Kicinski
75fd607932 Merge branch 'eth-bnxt-use-the-new-rss-api'
Jakub Kicinski says:

====================
eth: bnxt: use the new RSS API

Convert bnxt from using the set_rxfh API to separate create/modify/remove
callbacks.

Two small extensions to the core APIs are necessary:
 - the ability to discard contexts if for some catastrophic reasons
   device can no longer provide them;
 - the ability to reserve space in the context for RSS table growth.

The driver is adjusted to store indirection tables on u32 to make
it easier to use core structs directly.

With that out of the way the conversion is fairly straightforward.

Since the opposition to discarding contexts was relatively mild
and its what bnxt does already, I'm sticking to that. We may very
well need to revisit that at a later time.

v1: https://lore.kernel.org/all/20240702234757.4188344-1-kuba@kernel.org/
====================

Link: https://patch.msgid.link/20240711220713.283778-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:29 -07:00
Jakub Kicinski
46e457a454 eth: bnxt: use the indir table from ethtool context
Instead of allocating a separate indir table in the vnic use
the one already present in the RSS context allocated by the core.
This saves some LoC and also we won't have to worry about syncing
the local version back to the core, once core learns how to dump
contexts.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-12-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:23 -07:00
Jakub Kicinski
73afb518af eth: bnxt: bump the entry size in indir tables to u32
Ethtool core stores indirection table with u32 entries, "just to be safe".
Switch the type in the driver, so that it's easier to swap local tables
for the core ones. Memory allocations already use sizeof(*entry), switch
the memset()s as well.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-11-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:23 -07:00
Jakub Kicinski
9c34c6c28c eth: bnxt: pad out the correct indirection table
bnxt allocates tables of max size, and changes the used size
based on number of active rings. The unused entries get padded
out with zeros. bnxt_modify_rss() seems to always pad out
the table of the main / default RSS context, instead of
the table of the modified context.

I haven't observed any behavior change due to this patch,
so I don't think it's a fix. Not entirely sure what role
the padding plays, 0 is a valid queue ID.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:23 -07:00
Jakub Kicinski
20c8ad72eb eth: bnxt: use the RSS context XArray instead of the local list
Core already maintains all RSS contexts in an XArray, no need
to keep a second list in the driver.

Remove bnxt_get_max_rss_ctx_ring() completely since core performs
the same check already.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-9-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
63d4769cf7 eth: bnxt: use context priv for struct bnxt_rss_ctx
Core can allocate space for per-context driver-private data,
use it for struct bnxt_rss_ctx. Inline bnxt_alloc_rss_ctx()
at this point, most of the init (as in the actions bnxt_del_one_rss_ctx()
will undo) is open coded in bnxt_create_rxfh_context(), anyway.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
bf30162915 eth: bnxt: depend on core cleaning up RSS contexts
New RSS context API removes old contexts on netdev unregister.
No need to wipe them manually.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
1a49a23c03 eth: bnxt: remove rss_ctx_bmap
Core will allocate IDs for the driver, from the range
[1, BNXT_MAX_ETH_RSS_CTX], no need to track the allocations.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
5c466b4d4e eth: bnxt: move from .set_rxfh to .create_rxfh_context and friends
Use the new ethtool ops for RSS context management. The conversion
is pretty straightforward cut / paste of the right chunks of the
combined handler. Main change is that we let the core pick the IDs
(bitmap will be removed separately for ease of review), so we need
to tell the core when we lose a context.
Since the new API passes rxfh as const, change bnxt_modify_rss()
to also take const.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
667ac333db eth: bnxt: allow deleting RSS contexts when the device is down
Contexts get deleted from FW when the device is down, but they
are kept in SW and re-added back on open. bnxt_set_rxfh_context()
apparently does not want to deal with complexity of dealing with
both the device down and device up cases. This is perhaps acceptable
for creating new contexts, but not being able to delete contexts
makes core-driven cleanups messy. Specifically with the new RSS
API core will try to delete contexts automatically after bringing
the device down.

Support the delete-while-down case. Skip the FW logic and delete
just the driver state.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
28c8757a79 net: ethtool: let drivers declare max size of RSS indir table and key
Some drivers (bnxt but I think also mlx5 from ML discussions) change
the size of the indirection table depending on the number of Rx rings.
Decouple the max table size from the size of the currently used table,
so that we can reserve space in the context for table growth.

Static members in ethtool_ops are good enough for now, we can add
callbacks to read the max size more dynamically if someone needs
that.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:22 -07:00
Jakub Kicinski
d69ba6bbaf net: ethtool: let drivers remove lost RSS contexts
RSS contexts may get lost from a device, in various extreme circumstances.
Specifically if the firmware leaks resources and resets, or crashes and
either recovers in partially working state or the crash causes a
different FW version to run - creating the context again may fail.

Drivers should do their absolute best to prevent this from happening.
When it does, however, telling user that a context exists, when it can't
possibly be used any more is counter productive. Add a helper for
drivers to discard contexts. Print an error, in the future netlink
notification will also be sent.

More robust approaches were proposed, like keeping the contexts
but marking them as "dead" (but possibly resurrected by next reset).
That may be better but it's unclear at this stage whether the
effort is worth the benefits.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20240711220713.283778-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 22:16:21 -07:00
Dan Carpenter
a3c10bed33 erofs: silence uninitialized variable warning in z_erofs_scan_folio()
Smatch complains that:

    fs/erofs/zdata.c:1047 z_erofs_scan_folio()
    error: uninitialized symbol 'err'.

The issue is if we hit this (!(map->m_flags & EROFS_MAP_MAPPED)) {
condition then "err" isn't set.  It's inside a loop so we would have to
hit that condition on every iteration.  Initialize "err" to zero to
solve this.

Fixes: 5b9654efb6 ("erofs: teach z_erofs_scan_folios() to handle multi-page folios")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/f78ab50e-ed6d-4275-8dd4-a4159fa565a2@stanley.mountain
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2024-07-13 12:47:34 +08:00
Linus Torvalds
528dd46d0f Merge tag 'net-6.10-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull more networking fixes from Jakub Kicinski:
 "A quick follow up to yesterday's pull. We got a regressions report for
  the bnxt patch as soon as it got to your tree. The ethtool fix is also
  good to have, although it's an older regression.

  Current release - regressions:

   - eth: bnxt_en: fix crash in bnxt_get_max_rss_ctx_ring() on older HW
     when user tries to decrease the ring count

  Previous releases - regressions:

   - ethtool: fix RSS setting, accept "no change" setting if the driver
     doesn't support the new features

   - eth: i40e: remove needless retries of NVM update, don't wait 20min
     when we know the firmware update won't succeed"

* tag 'net-6.10-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net:
  bnxt_en: Fix crash in bnxt_get_max_rss_ctx_ring()
  octeontx2-af: fix issue with IPv4 match for RSS
  octeontx2-af: fix issue with IPv6 ext match for RSS
  octeontx2-af: fix detection of IP layer
  octeontx2-af: fix a issue with cpt_lf_alloc mailbox
  octeontx2-af: replace cpt slot with lf id on reg write
  i40e: fix: remove needless retries of NVM update
  net: ethtool: Fix RSS setting
2024-07-12 18:33:33 -07:00
Michael Chan
f7ce5eb2cb bnxt_en: Fix crash in bnxt_get_max_rss_ctx_ring()
On older chips not supporting multiple RSS contexts, reducing
ethtool channels will crash:

BUG: kernel NULL pointer dereference, address: 00000000000000b8
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 7032 Comm: ethtool Tainted: G S                 6.10.0-rc4 #1
Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017
RIP: 0010:bnxt_get_max_rss_ctx_ring+0x4c/0x90 [bnxt_en]
Code: c3 d3 eb 4c 8b 83 38 01 00 00 48 8d bb 38 01 00 00 4c 39 c7 74 42 41 8d 54 24 ff 31 c0 0f b7 d2 4c 8d 4c 12 02 66 85 ed 74 1d <49> 8b 90 b8 00 00 00 49 8d 34 11 0f b7 0a 66 39 c8 0f 42 c1 48 83
RSP: 0018:ffffaaa501d23ba8 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff8efdf600c940 RCX: 0000000000000000
RDX: 000000000000007f RSI: ffffffffacf429c4 RDI: ffff8efdf600ca78
RBP: 0000000000000080 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000001 R11: ffffaaa501d238c0 R12: 0000000000000080
R13: 0000000000000000 R14: ffff8efdf600c000 R15: 0000000000000006
FS:  00007f977a7d2740(0000) GS:ffff8f041f840000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b8 CR3: 00000002320aa004 CR4: 00000000003706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? __die_body+0x15/0x60
? page_fault_oops+0x157/0x440
? do_user_addr_fault+0x60/0x770
? _raw_spin_lock_irqsave+0x12/0x40
? exc_page_fault+0x61/0x120
? asm_exc_page_fault+0x22/0x30
? bnxt_get_max_rss_ctx_ring+0x4c/0x90 [bnxt_en]
? bnxt_get_max_rss_ctx_ring+0x25/0x90 [bnxt_en]
bnxt_set_channels+0x9d/0x340 [bnxt_en]
ethtool_set_channels+0x14b/0x210
__dev_ethtool+0xdf8/0x2890
? preempt_count_add+0x6a/0xa0
? percpu_counter_add_batch+0x23/0x90
? filemap_map_pages+0x417/0x4a0
? avc_has_extended_perms+0x185/0x420
? __pfx_udp_ioctl+0x10/0x10
? sk_ioctl+0x55/0xf0
? kmalloc_trace_noprof+0xe0/0x210
? dev_ethtool+0x54/0x170
dev_ethtool+0xa2/0x170
dev_ioctl+0xbe/0x530
sock_do_ioctl+0xa3/0xf0
sock_ioctl+0x20d/0x2e0

bp->rss_ctx_list is not initialized if the chip or firmware does not
support multiple RSS contexts.  Fix it by adding a check in
bnxt_get_max_rss_ctx_ring() before proceeding to reference
bp->rss_ctx_list.

Fixes: 0d1b7d6c92 ("bnxt: fix crashes when reducing ring count with active RSS contexts")
Reported-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/netdev/ZpFEJeNpwxW1aW9k@gmail.com/
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20240712175318.166811-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12 18:00:00 -07:00
Dmitry Torokhov
f3efefb6fd Input: yealink - simplify locking in sysfs attribute handling
The locking rules in the driver came from era when sysfs attributes
could live past the point of time when device would be unbound from
the driver, and so used module-global semaphore (potentially shared
between multiple yealink devices). Thankfully these times are long
gone and attributes will not be accessible once they are removed.

Simplify the logic by moving to per-device mutex, stop checking if
there is driver data instance attached to the interface, and use
guard notation to acquire the mutex.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240710234855.311366-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-12 17:15:45 -07:00
Dmitry Torokhov
295b89a631 Input: yealink - use driver core to instantiate device attributes
Instead of manually creating driver-specific device attributes
set struct usb_driver->dev_groups pointer to have the driver core
do it.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240710234855.311366-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-12 17:15:45 -07:00
Dmitry Torokhov
b20d6bf801 Input: ati-remote2 - use driver core to instantiate device attributes
Instead of manually creating driver-specific device attributes
set struct usb_driver->dev_groups pointer to have the driver core
do it.

Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/Zo8gaF_lKPAfcye1@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-12 17:15:38 -07:00
Dmitry Torokhov
2d7877d797 Input: omap-keypad - use driver core to instantiate device attributes
Instead of manually creating driver-specific device attributes
set struct driver->dev_groups pointer to have the driver core
do it.

This also fixes issue with the attribute not being deleted on driver
unbind.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/Zo9nofWJ1xg9MgKs@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-12 17:15:29 -07:00
Dmitry Torokhov
a122a6fd72 Input: atmel_mxt_ts - use driver core to instantiate device attributes
Instead of manually creating driver-specific device attributes,
set struct driver->dev_groups pointer to have the driver core
do it.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/Zo9kSFeGOZB9b3rq@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-12 17:15:08 -07:00
Masahiro Yamada
df1e979199 hwrng: core - remove (un)register_miscdev()
These functions are redundant after commit 0daa7a0afd ("hwrng: Avoid
manual device_create_file() calls").

Let's call misc_(de)register() directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2024-07-13 11:50:28 +12:00
Dan Carpenter
fe69b772e3 crypto: lib/mpi - delete unnecessary condition
We checked that "nlimbs" is non-zero in the outside if statement so delete
the duplicate check here.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2024-07-13 11:50:28 +12:00