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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking changes from Paolo Abeni:
"Core:
- Refactor the forward memory allocation to better cope with memory
pressure with many open sockets, moving from a per socket cache to
a per-CPU one
- Replace rwlocks with RCU for better fairness in ping, raw sockets
and IP multicast router.
- Network-side support for IO uring zero-copy send.
- A few skb drop reason improvements, including codegen the source
file with string mapping instead of using macro magic.
- Rename reference tracking helpers to a more consistent netdev_*
schema.
- Adapt u64_stats_t type to address load/store tearing issues.
- Refine debug helper usage to reduce the log noise caused by bots.
BPF:
- Improve socket map performance, avoiding skb cloning on read
operation.
- Add support for 64 bits enum, to match types exposed by kernel.
- Introduce support for sleepable uprobes program.
- Introduce support for enum textual representation in libbpf.
- New helpers to implement synproxy with eBPF/XDP.
- Improve loop performances, inlining indirect calls when possible.
- Removed all the deprecated libbpf APIs.
- Implement new eBPF-based LSM flavor.
- Add type match support, which allow accurate queries to the eBPF
used types.
- A few TCP congetsion control framework usability improvements.
- Add new infrastructure to manipulate CT entries via eBPF programs.
- Allow for livepatch (KLP) and BPF trampolines to attach to the same
kernel function.
Protocols:
- Introduce per network namespace lookup tables for unix sockets,
increasing scalability and reducing contention.
- Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support.
- Add support to forciby close TIME_WAIT TCP sockets via user-space
tools.
- Significant performance improvement for the TLS 1.3 receive path,
both for zero-copy and not-zero-copy.
- Support for changing the initial MTPCP subflow priority/backup
status
- Introduce virtually contingus buffers for sockets over RDMA, to
cope better with memory pressure.
- Extend CAN ethtool support with timestamping capabilities
- Refactor CAN build infrastructure to allow building only the needed
features.
Driver API:
- Remove devlink mutex to allow parallel commands on multiple links.
- Add support for pause stats in distributed switch.
- Implement devlink helpers to query and flash line cards.
- New helper for phy mode to register conversion.
New hardware / drivers:
- Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro.
- Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch.
- Ethernet DSA driver for the Microchip LAN937x switch.
- Ethernet PHY driver for the Aquantia AQR113C EPHY.
- CAN driver for the OBD-II ELM327 interface.
- CAN driver for RZ/N1 SJA1000 CAN controller.
- Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device.
Drivers:
- Intel Ethernet NICs:
- i40e: add support for vlan pruning
- i40e: add support for XDP framented packets
- ice: improved vlan offload support
- ice: add support for PPPoE offload
- Mellanox Ethernet (mlx5)
- refactor packet steering offload for performance and scalability
- extend support for TC offload
- refactor devlink code to clean-up the locking schema
- support stacked vlans for bridge offloads
- use TLS objects pool to improve connection rate
- Netronome Ethernet NICs (nfp):
- extend support for IPv6 fields mangling offload
- add support for vepa mode in HW bridge
- better support for virtio data path acceleration (VDPA)
- enable TSO by default
- Microsoft vNIC driver (mana)
- add support for XDP redirect
- Others Ethernet drivers:
- bonding: add per-port priority support
- microchip lan743x: extend phy support
- Fungible funeth: support UDP segmentation offload and XDP xmit
- Solarflare EF100: add support for virtual function representors
- MediaTek SoC: add XDP support
- Mellanox Ethernet/IB switch (mlxsw):
- dropped support for unreleased H/W (XM router).
- improved stats accuracy
- unified bridge model coversion improving scalability (parts 1-6)
- support for PTP in Spectrum-2 asics
- Broadcom PHYs
- add PTP support for BCM54210E
- add support for the BCM53128 internal PHY
- Marvell Ethernet switches (prestera):
- implement support for multicast forwarding offload
- Embedded Ethernet switches:
- refactor OcteonTx MAC filter for better scalability
- improve TC H/W offload for the Felix driver
- refactor the Microchip ksz8 and ksz9477 drivers to share the
probe code (parts 1, 2), add support for phylink mac
configuration
- Other WiFi:
- Microchip wilc1000: diable WEP support and enable WPA3
- Atheros ath10k: encapsulation offload support
Old code removal:
- Neterion vxge ethernet driver: this is untouched since more than 10 years"
* tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits)
doc: sfp-phylink: Fix a broken reference
wireguard: selftests: support UML
wireguard: allowedips: don't corrupt stack when detecting overflow
wireguard: selftests: update config fragments
wireguard: ratelimiter: use hrtimer in selftest
net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ
net: usb: ax88179_178a: Bind only to vendor-specific interface
selftests: net: fix IOAM test skip return code
net: usb: make USB_RTL8153_ECM non user configurable
net: marvell: prestera: remove reduntant code
octeontx2-pf: Reduce minimum mtu size to 60
net: devlink: Fix missing mutex_unlock() call
net/tls: Remove redundant workqueue flush before destroy
net: txgbe: Fix an error handling path in txgbe_probe()
net: dsa: Fix spelling mistakes and cleanup code
Documentation: devlink: add add devlink-selftests to the table of contents
dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
net: ionic: fix error check for vlan flags in ionic_set_nic_features()
net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr()
nfp: flower: add support for tunnel offload without key ID
...
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Conflicts:
net/ax25/af_ax25.c
d7c4c9e075f8c ("ax25: fix incorrect dev_tracker usage")
d62607c3fe459 ("net: rename reference+tracking helpers")
drivers/net/netdevsim/fib.c
180a6a3ee60a ("netdevsim: fib: Fix reference count leak on route deletion failure")
012ec02ae441 ("netdevsim: convert driver to use unlocked devlink API during init/fini")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Striding RQ uses MTT page mapping, where each page corresponds to an XSK
frame. MTT pages have alignment requirements, and XSK frames don't have
any alignment guarantees in the unaligned mode. Frames with improper
alignment must be discarded, otherwise the packet data will be written
at a wrong address.
Fixes: 282c0c798f8e ("net/mlx5e: Allow XSK frames smaller than a page")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20220729121356.3990867-1-maximmi@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The Anker PowerExpand USB-C to Gigabit Ethernet adapter uses this
chipset, but exposes CDC Ethernet configurations as well as the
vendor specific one. This driver tries to bind by PID:VID
unconditionally and ends up picking up the CDC configuration, which
is supposed to be handled by the class driver. To make things even
more confusing, it sees both of the CDC class interfaces and tries
to bind twice, resulting in two broken Ethernet devices.
Change all the ID matches to specifically match the vendor-specific
interface. By default the device comes up in CDC mode and is bound by
that driver (which works fine); users may switch it to the vendor
interface using sysfs to set bConfigurationValue, at which point the
device actually goes through a reconnect cycle and comes back as a
vendor specific only device, and then this driver binds and works too.
The affected device uses VID/PID 0b95:1790, but we might as well change
all of them for good measure, since there is no good reason for this
driver to bind to standard CDC Ethernet interfaces.
v3: Added VID/PID info to commit message
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20220731072209.45504-1-marcan@marcan.st
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This refixes:
commit 7da17624e7948d5d9660b910f8079d26d26ce453
nt: usb: USB_RTL8153_ECM should not default to y
In general, device drivers should not be enabled by default.
which basically broke the commit it claimed to fix, ie:
commit 657bc1d10bfc23ac06d5d687ce45826c760744f9
r8153_ecm: avoid to be prior to r8152 driver
Avoid r8153_ecm is compiled as built-in, if r8152 driver is compiled
as modules. Otherwise, the r8153_ecm would be used, even though the
device is supported by r8152 driver.
this commit amounted to:
drivers/net/usb/Kconfig:
+config USB_RTL8153_ECM
+ tristate "RTL8153 ECM support"
+ depends on USB_NET_CDCETHER && (USB_RTL8152 || USB_RTL8152=n)
+ default y
+ help
+ This option supports ECM mode for RTL8153 ethernet adapter, when
+ CONFIG_USB_RTL8152 is not set, or the RTL8153 device is not
+ supported by r8152 driver.
drivers/net/usb/Makefile:
-obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o r8153_ecm.o
+obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
+obj-$(CONFIG_USB_RTL8153_ECM) += r8153_ecm.o
And as can be seen it pulls a piece of the cdc_ether driver out into
a separate config option to be able to make this piece modular in case
cdc_ether is builtin, while r8152 is modular.
While in general, device drivers should indeed not be enabled by default:
this isn't a device driver per say, but rather this is support code for
the CDCETHER (ECM) driver, and should thus be enabled if it is enabled.
See also email thread at:
https://www.spinics.net/lists/netdev/msg767649.html
In:
https://www.spinics.net/lists/netdev/msg768284.html
Jakub wrote:
And when we say "removed" we can just hide it from what's prompted
to the user (whatever such internal options are called)? I believe
this way we don't bring back Marek's complaint.
Side note: these incorrect defaults will result in Android 13
on 5.15 GKI kernels lacking USB_RTL8153_ECM support while having
USB_NET_CDCETHER (luckily we also have USB_RTL8150 and USB_RTL8152,
so it's probably only an issue for very new RTL815x hardware with
no native 5.15 driver).
Fixes: 7da17624e7948d5d ("nt: usb: USB_RTL8153_ECM should not default to y")
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hayes Wang <hayeswang@realtek.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Link: https://lore.kernel.org/r/20220730230113.4138858-1-zenczykowski@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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PTP messages like SYNC, FOLLOW_UP, DELAY_REQ are of size 58 bytes.
Using a minimum packet length as 64 makes NIX to pad 6 bytes of
zeroes while transmission. This is causing latest ptp4l application to
emit errors since length in PTP header and received packet are not same.
Padding upto 3 bytes is fine but more than that makes ptp4l to assume
the pad bytes as a TLV. Hence reduce the size to 60 from 64.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Link: https://lore.kernel.org/r/20220729092457.3850-1-naveenm@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In the case of sk->dccps_qpolicy == DCCPQ_POLICY_PRIO, dccp_qpolicy_full
will drop a skb when qpolicy is full. And the lock in dccp_sendmsg is
released before sock_alloc_send_skb and then relocked after
sock_alloc_send_skb. The following conditions may lead dccp_qpolicy_push
to add skb to an already full sk_write_queue:
thread1--->lock
thread1--->dccp_qpolicy_full: queue is full. drop a skb
thread1--->unlock
thread2--->lock
thread2--->dccp_qpolicy_full: queue is not full. no need to drop.
thread2--->unlock
thread1--->lock
thread1--->dccp_qpolicy_push: add a skb. queue is full.
thread1--->unlock
thread2--->lock
thread2--->dccp_qpolicy_push: add a skb!
thread2--->unlock
Fix this by moving dccp_qpolicy_full.
Fixes: b1308dc015eb ("[DCCP]: Set TX Queue Length Bounds via Sysctl")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20220729110027.40569-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Guangbin Huang says:
====================
net: fix using wrong flags to check features
We find that some drivers may use wrong flags to check features,
so fix them.
====================
Link: https://lore.kernel.org/r/20220729101755.4798-1-huangguangbin2@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The prototype of input features of ionic_set_nic_features() is
netdev_features_t, but the vlan_flags is using the private
definition of ionic drivers. It should use the variable
ctx.cmd.lif_setattr.features, rather than features to check
the vlan flags. So fixes it.
Fixes: beead698b173 ("ionic: Add the basic NDO callbacks for netdev support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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vsi->current_netdev_flags is used store the current net device
flags, not the active netdevice features. So it should use
vsi->netdev->featurs, rather than vsi->current_netdev_flags
to check NETIF_F_HW_VLAN_CTAG_FILTER.
Fixes: 1babaf77f49d ("ice: Advertise 802.1ad VLAN filtering and offloads for PF netdev")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-07-29
This series contains updates to iavf driver only.
Przemyslaw prevents setting of TC max rate below minimum supported values
and reports updated queue values when setting up TCs.
---
v2: Dropped patch 3 (hw-tc-offload check)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix tc qdisc show dev <ethX> root displaying too many fq_codel qdiscs.
tc_modify_qdisc, which is caller of ndo_setup_tc, expects driver to call
netif_set_real_num_tx_queues, which prepares qdiscs.
Without this patch, fq_codel qdiscs would not be adjusted to number of
queues on VF.
e.g.:
tc qdisc show dev <ethX>
qdisc mq 0: root
qdisc fq_codel 0: parent :4 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent :3 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent :2 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent :1 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
tc qdisc add dev <ethX> root mqprio num_tc 2 map 1 0 0 0 0 0 0 0 queues 1@0 1@1 hw 1 mode channel shaper bw_rlimit max_rate 5000Mbit 150Mbit
tc qdisc show dev <ethX>
qdisc mqprio 8003: root tc 2 map 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
queues:(0:0) (1:1)
mode:channel
shaper:bw_rlimit max_rate:5Gbit 150Mbit
qdisc fq_codel 0: parent 8003:4 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent 8003:3 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent 8003:2 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent 8003:1 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
While after fix:
tc qdisc add dev <ethX> root mqprio num_tc 2 map 1 0 0 0 0 0 0 0 queues 1@0 1@1 hw 1 mode channel shaper bw_rlimit max_rate 5000Mbit 150Mbit
tc qdisc show dev <ethX> #should show 2, shows 4
qdisc mqprio 8004: root tc 2 map 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
queues:(0:0) (1:1)
mode:channel
shaper:bw_rlimit max_rate:5Gbit 150Mbit
qdisc fq_codel 0: parent 8004:2 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
qdisc fq_codel 0: parent 8004:1 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
Fixes: d5b33d024496 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Co-developed-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Co-developed-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Fix max_rate option in TC, check for proper quanta boundaries.
Check for minimum value provided and if it fits expected 50Mbps
quanta.
Without this patch, iavf could send settings for max_rate limiting
that would be accepted from by PF even the max_rate option is less
than expected 50Mbps quanta. It results in no rate limiting
on traffic as rate limiting will be floored to 0.
Example:
tc qdisc add dev $vf root mqprio num_tc 3 map 0 2 1 queues \
2@0 2@2 2@4 hw 1 mode channel shaper bw_rlimit \
max_rate 50Mbps 500Mbps 500Mbps
Should limit TC0 to circa 50 Mbps
tc qdisc add dev $vf root mqprio num_tc 3 map 0 2 1 queues \
2@0 2@2 2@4 hw 1 mode channel shaper bw_rlimit \
max_rate 0Mbps 100Kbit 500Mbps
Should return error
Fixes: d5b33d024496 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Jun Zhang <xuejun.zhang@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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If 'local_odp_mr->r_trans_private' is a error code,
it is better to print the error code than to print
the value of IS_ERR().
Signed-off-by: Li Qiong <liqiong@nfschina.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2022-07-28
This series provides bug fixes to mlx5 driver.
* tag 'mlx5-fixes-2022-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Fix driver use of uninitialized timeout
net/mlx5: DR, Fix SMFS steering info dump format
net/mlx5: Adjust log_max_qp to be 18 at most
net/mlx5e: Modify slow path rules to go to slow fdb
net/mlx5e: Fix calculations related to max MPWQE size
net/mlx5e: xsk: Account for XSK RQ UMRs when calculating ICOSQ size
net/mlx5e: Fix the value of MLX5E_MAX_RQ_NUM_MTTS
net/mlx5e: TC, Fix post_act to not match on in_port metadata
net/mlx5e: Remove WARN_ON when trying to offload an unsupported TLS cipher/version
====================
Link: https://lore.kernel.org/r/20220728204640.139990-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently, driver is setting default values to all timeouts during
function setup. The offending commit is using a timeout before
function setup, meaning: the timeout is 0 (or garbage), since no
value have been set.
This may result in failure to probe the driver:
mlx5_function_setup:1034:(pid 69850): Firmware over 4294967296 MS in pre-initializing state, aborting
probe_one:1591:(pid 69850): mlx5_init_one failed with error code -16
Hence, set default values to timeouts during tout_init()
Fixes: 37ca95e62ee2 ("net/mlx5: Increase FW pre-init timeout for health recovery")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Fix several issues in SMFS steering info dump:
- Fix outdated macro value for matcher mask in the SMFS debug dump format.
The existing value denotes the old format of the matcher mask, as it was
used during the early stages of development, and it results in wrong
parsing by the steering dump parser - wrong fields are shown in the
parsed output.
- Add the missing destination table to the dumped action.
The missing dest table handle breaks the ability to associate between
the "go to table" action and the actual table in the steering info.
Fixes: 9222f0b27da2 ("net/mlx5: DR, Add support for dumping steering info")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The cited commit limited log_max_qp to be 17 due to FW capabilities.
Recently, it turned out that there are old FW versions that supported
more than 17, so the cited commit caused a degradation.
Thus, set the maximum log_max_qp back to 18 as it was before the
cited commit.
Fixes: 7f839965b2d7 ("net/mlx5: Update log_max_qp value to be 17 at most")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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While extending available range of supported chains/prios referenced commit
also modified slow path rules to go to FT chain instead of actual slow FDB.
However neither of existing users of the MLX5_ATTR_FLAG_SLOW_PATH
flag (tunnel encap entries with invalid encap and flows with trap action)
need to match on FT chain. After bridge offload was implemented packets of
such flows can also be matched by bridge priority tables which is
undesirable. Restore slow path flows implementation to redirect packets to
slow_fdb.
Fixes: 278d51f24330 ("net/mlx5: E-Switch, Increase number of chains and priorities")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Before commit 76c31e5f7585 ("net/mlx5e: Use FW limitation for max MPW
WQEBBs"), the maximum size of MPWQE in WQEBBs was hardcoded as a driver
constant. That commit started using the firmware capability that can
further limit the size, however, it unintentionally changed a few
things:
1. The calculation of MLX5E_MAX_KLM_PER_WQE used the size in DS, which
was replaced by the size in WQEBBs, making the resulting value 4 times
smaller.
2. MLX5E_TX_MPW_MAX_WQEBBS used to be aligned to the cache line size
(either 64 or 128 bytes, i.e. 1 or 2 WQEBBs), but it's no longer the
case if the firmware capability is smaller than the driver maximum.
Fix both issues by using the correct units for MLX5E_MAX_KLM_PER_WQE and
by aligning mlx5e_get_sw_max_sq_mpw_wqebbs after taking the minimum.
Besides fixing the arithmetics in calculation of MLX5E_MAX_KLM_PER_WQE,
also use appropriate constants: `size of BSF * num of DS per WQEBB *
number of WQEBBs` (the calculation before the blamed commit) doesn't
make much sense to calculate the WQE size in bytes, so just use `size of
WQEBB * number of WQEBBs`.
While at it, replace the types that hold the number of WQEBBs by u8.
These values don't exceed 16, and it allows to fill holes in two
structs.
Fixes: 76c31e5f7585 ("net/mlx5e: Use FW limitation for max MPW WQEBBs")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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ICOSQ is used to post UMR WQEs for both regular RQ and XSK RQ. However,
space in ICOSQ is reserved only for the regular RQ, which may cause
ICOSQ overflows when using XSK (the most risk is on activating
channels).
This commit fixes the issue by reserving space for XSK UMR WQEs as well.
As XSK may be enabled without restarting the channel and recreating the
ICOSQ, this space is reserved unconditionally.
Fixes: db05815b36cb ("net/mlx5e: Add XSK zero-copy support")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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MLX5E_MAX_RQ_NUM_MTTS should be the maximum value, so that
MLX5_MTT_OCTW(MLX5E_MAX_RQ_NUM_MTTS) fits into u16. The current value of
1 << 17 results in MLX5_MTT_OCTW(1 << 17) = 1 << 16, which doesn't fit
into u16. This commit replaces it with the maximum value that still
fits u16.
Fixes: 73281b78a37a ("net/mlx5e: Derive Striding RQ size from MTU")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The cited commit changed CT to use multi table actions post act infrastructure instead
of using it own post act infrastructure, this broke decap during VF tunnel offload
(Stack devices) with CT due to wrong match on in_port metadata in the post act table.
This changed only broke VF tunnel offload because it modify the packet in_port metadata
to be VF metadata and it isn't propagate the post act creation.
Fixed by modify post act rules to match only on fte_id and not match on in_port metadata
which isn't needed.
Fixes: a81283263bb0 ("net/mlx5e: Use multi table support for CT and sample actions")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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cipher/version
The driver reports whether TX/RX TLS device offloads are supported, but
not which ciphers/versions, these should be handled by returning
-EOPNOTSUPP when .tls_dev_add() is called.
Remove the WARN_ON kernel trace when the driver gets a request to
offload a cipher/version that is not supported as it is expected.
Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Ido Schimmel says:
====================
netdevsim: fib: Fix reference count leak on route deletion failure
Fix a recently reported netdevsim bug found using syzkaller.
Patch #1 fixes the bug.
Patch #2 adds a debugfs knob to allow us to test the fix.
Patch #3 adds test cases.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add IPv4 and IPv6 test cases that ensure that we are not leaking a
reference on the nexthop device when we are unable to delete its
associated route.
Without the fix in a previous patch ("netdevsim: fib: Fix reference
count leak on route deletion failure") both test cases get stuck,
waiting for the reference to be released from the dummy device [1][2].
[1]
unregister_netdevice: waiting for dummy1 to become free. Usage count = 5
leaked reference.
fib_check_nh+0x275/0x620
fib_create_info+0x237c/0x4d30
fib_table_insert+0x1dd/0x1d20
inet_rtm_newroute+0x11b/0x200
rtnetlink_rcv_msg+0x43b/0xd20
netlink_rcv_skb+0x15e/0x430
netlink_unicast+0x53b/0x800
netlink_sendmsg+0x945/0xe40
____sys_sendmsg+0x747/0x960
___sys_sendmsg+0x11d/0x190
__sys_sendmsg+0x118/0x1e0
do_syscall_64+0x34/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
[2]
unregister_netdevice: waiting for dummy1 to become free. Usage count = 5
leaked reference.
fib6_nh_init+0xc46/0x1ca0
ip6_route_info_create+0x1167/0x19a0
ip6_route_add+0x27/0x150
inet6_rtm_newroute+0x161/0x170
rtnetlink_rcv_msg+0x43b/0xd20
netlink_rcv_skb+0x15e/0x430
netlink_unicast+0x53b/0x800
netlink_sendmsg+0x945/0xe40
____sys_sendmsg+0x747/0x960
___sys_sendmsg+0x11d/0x190
__sys_sendmsg+0x118/0x1e0
do_syscall_64+0x34/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The previous patch ("netdevsim: fib: Fix reference count leak on route
deletion failure") fixed a reference count leak that happens on route
deletion failure.
Such failures can only be simulated by injecting slab allocation
failures, which cannot be surgically injected.
In order to be able to specifically test this scenario, add a debugfs
knob that allows user space to fail route deletion requests when
enabled.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As part of FIB offload simulation, netdevsim stores IPv4 and IPv6 routes
and holds a reference on FIB info structures that in turn hold a
reference on the associated nexthop device(s).
In the unlikely case where we are unable to allocate memory to process a
route deletion request, netdevsim will not release the reference from
the associated FIB info structure, thereby preventing the associated
nexthop device(s) from ever being removed [1].
Fix this by scheduling a work item that will flush netdevsim's FIB table
upon route deletion failure. This will cause netdevsim to release its
reference from all the FIB info structures in its table.
Reported by Lucas Leong of Trend Micro Zero Day Initiative.
Fixes: 0ae3eb7b4611 ("netdevsim: fib: Perform the route programming in a non-atomic context")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit 3c82a21f4320 ("net: allow binding socket in a VRF when
there's an unbound socket") changed the inet socket lookup to avoid
packets in a VRF from matching an unbound socket. This is to ensure the
necessary isolation between the default and other VRFs for routing and
forwarding. VRF-unaware processes running in the default VRF cannot
access another VRF and have to be run with 'ip vrf exec <vrf>'. This is
to be expected with tcp_l3mdev_accept disabled, but could be reallowed
when this sysctl option is enabled. So instead of directly checking dif
and sdif in inet[6]_match, here call inet_sk_bound_dev_eq(). This
allows a match on unbound socket for non-zero sdif i.e. for packets in
a VRF, if tcp_l3mdev_accept is enabled.
Fixes: 3c82a21f4320 ("net: allow binding socket in a VRF when there's an unbound socket")
Signed-off-by: Mike Manning <mvrmanning@gmail.com>
Link: https://lore.kernel.org/netdev/a54c149aed38fded2d3b5fdb1a6c89e36a083b74.camel@lasnet.de/
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While investigating a separate rose issue [1], and enabling
CONFIG_NET_DEV_REFCNT_TRACKER=y, Bernard reported an orthogonal ax25 issue [2]
An ax25_dev can be used by one (or many) struct ax25_cb.
We thus need different dev_tracker, one per struct ax25_cb.
After this patch is applied, we are able to focus on rose.
[1] https://lore.kernel.org/netdev/fb7544a1-f42e-9254-18cc-c9b071f4ca70@free.fr/
[2]
[ 205.798723] reference already released.
[ 205.798732] allocated in:
[ 205.798734] ax25_bind+0x1a2/0x230 [ax25]
[ 205.798747] __sys_bind+0xea/0x110
[ 205.798753] __x64_sys_bind+0x18/0x20
[ 205.798758] do_syscall_64+0x5c/0x80
[ 205.798763] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 205.798768] freed in:
[ 205.798770] ax25_release+0x115/0x370 [ax25]
[ 205.798778] __sock_release+0x42/0xb0
[ 205.798782] sock_close+0x15/0x20
[ 205.798785] __fput+0x9f/0x260
[ 205.798789] ____fput+0xe/0x10
[ 205.798792] task_work_run+0x64/0xa0
[ 205.798798] exit_to_user_mode_prepare+0x18b/0x190
[ 205.798804] syscall_exit_to_user_mode+0x26/0x40
[ 205.798808] do_syscall_64+0x69/0x80
[ 205.798812] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 205.798827] ------------[ cut here ]------------
[ 205.798829] WARNING: CPU: 2 PID: 2605 at lib/ref_tracker.c:136 ref_tracker_free.cold+0x60/0x81
[ 205.798837] Modules linked in: rose netrom mkiss ax25 rfcomm cmac algif_hash algif_skcipher af_alg bnep snd_hda_codec_hdmi nls_iso8859_1 i915 rtw88_8821ce rtw88_8821c x86_pkg_temp_thermal rtw88_pci intel_powerclamp rtw88_core snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio coretemp snd_hda_intel kvm_intel snd_intel_dspcfg mac80211 snd_hda_codec kvm i2c_algo_bit drm_buddy drm_dp_helper btusb drm_kms_helper snd_hwdep btrtl snd_hda_core btbcm joydev crct10dif_pclmul btintel crc32_pclmul ghash_clmulni_intel mei_hdcp btmtk intel_rapl_msr aesni_intel bluetooth input_leds snd_pcm crypto_simd syscopyarea processor_thermal_device_pci_legacy sysfillrect cryptd intel_soc_dts_iosf snd_seq sysimgblt ecdh_generic fb_sys_fops rapl libarc4 processor_thermal_device intel_cstate processor_thermal_rfim cec snd_timer ecc snd_seq_device cfg80211 processor_thermal_mbox mei_me processor_thermal_rapl mei rc_core at24 snd intel_pch_thermal intel_rapl_common ttm soundcore int340x_thermal_zone video
[ 205.798948] mac_hid acpi_pad sch_fq_codel ipmi_devintf ipmi_msghandler drm msr parport_pc ppdev lp parport ramoops pstore_blk reed_solomon pstore_zone efi_pstore ip_tables x_tables autofs4 hid_generic usbhid hid i2c_i801 i2c_smbus r8169 xhci_pci ahci libahci realtek lpc_ich xhci_pci_renesas [last unloaded: ax25]
[ 205.798992] CPU: 2 PID: 2605 Comm: ax25ipd Not tainted 5.18.11-F6BVP #3
[ 205.798996] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CK3, BIOS 5.011 09/16/2020
[ 205.798999] RIP: 0010:ref_tracker_free.cold+0x60/0x81
[ 205.799005] Code: e8 d2 01 9b ff 83 7b 18 00 74 14 48 c7 c7 2f d7 ff 98 e8 10 6e fc ff 8b 7b 18 e8 b8 01 9b ff 4c 89 ee 4c 89 e7 e8 5d fd 07 00 <0f> 0b b8 ea ff ff ff e9 30 05 9b ff 41 0f b6 f7 48 c7 c7 a0 fa 4e
[ 205.799008] RSP: 0018:ffffaf5281073958 EFLAGS: 00010286
[ 205.799011] RAX: 0000000080000000 RBX: ffff9a0bd687ebe0 RCX: 0000000000000000
[ 205.799014] RDX: 0000000000000001 RSI: 0000000000000282 RDI: 00000000ffffffff
[ 205.799016] RBP: ffffaf5281073a10 R08: 0000000000000003 R09: fffffffffffd5618
[ 205.799019] R10: 0000000000ffff10 R11: 000000000000000f R12: ffff9a0bc53384d0
[ 205.799022] R13: 0000000000000282 R14: 00000000ae000001 R15: 0000000000000001
[ 205.799024] FS: 0000000000000000(0000) GS:ffff9a0d0f300000(0000) knlGS:0000000000000000
[ 205.799028] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 205.799031] CR2: 00007ff6b8311554 CR3: 000000001ac10004 CR4: 00000000001706e0
[ 205.799033] Call Trace:
[ 205.799035] <TASK>
[ 205.799038] ? ax25_dev_device_down+0xd9/0x1b0 [ax25]
[ 205.799047] ? ax25_device_event+0x9f/0x270 [ax25]
[ 205.799055] ? raw_notifier_call_chain+0x49/0x60
[ 205.799060] ? call_netdevice_notifiers_info+0x52/0xa0
[ 205.799065] ? dev_close_many+0xc8/0x120
[ 205.799070] ? unregister_netdevice_many+0x13d/0x890
[ 205.799073] ? unregister_netdevice_queue+0x90/0xe0
[ 205.799076] ? unregister_netdev+0x1d/0x30
[ 205.799080] ? mkiss_close+0x7c/0xc0 [mkiss]
[ 205.799084] ? tty_ldisc_close+0x2e/0x40
[ 205.799089] ? tty_ldisc_hangup+0x137/0x210
[ 205.799092] ? __tty_hangup.part.0+0x208/0x350
[ 205.799098] ? tty_vhangup+0x15/0x20
[ 205.799103] ? pty_close+0x127/0x160
[ 205.799108] ? tty_release+0x139/0x5e0
[ 205.799112] ? __fput+0x9f/0x260
[ 205.799118] ax25_dev_device_down+0xd9/0x1b0 [ax25]
[ 205.799126] ax25_device_event+0x9f/0x270 [ax25]
[ 205.799135] raw_notifier_call_chain+0x49/0x60
[ 205.799140] call_netdevice_notifiers_info+0x52/0xa0
[ 205.799146] dev_close_many+0xc8/0x120
[ 205.799152] unregister_netdevice_many+0x13d/0x890
[ 205.799157] unregister_netdevice_queue+0x90/0xe0
[ 205.799161] unregister_netdev+0x1d/0x30
[ 205.799165] mkiss_close+0x7c/0xc0 [mkiss]
[ 205.799170] tty_ldisc_close+0x2e/0x40
[ 205.799173] tty_ldisc_hangup+0x137/0x210
[ 205.799178] __tty_hangup.part.0+0x208/0x350
[ 205.799184] tty_vhangup+0x15/0x20
[ 205.799188] pty_close+0x127/0x160
[ 205.799193] tty_release+0x139/0x5e0
[ 205.799199] __fput+0x9f/0x260
[ 205.799203] ____fput+0xe/0x10
[ 205.799208] task_work_run+0x64/0xa0
[ 205.799213] do_exit+0x33b/0xab0
[ 205.799217] ? __handle_mm_fault+0xc4f/0x15f0
[ 205.799224] do_group_exit+0x35/0xa0
[ 205.799228] __x64_sys_exit_group+0x18/0x20
[ 205.799232] do_syscall_64+0x5c/0x80
[ 205.799238] ? handle_mm_fault+0xba/0x290
[ 205.799242] ? debug_smp_processor_id+0x17/0x20
[ 205.799246] ? fpregs_assert_state_consistent+0x26/0x50
[ 205.799251] ? exit_to_user_mode_prepare+0x49/0x190
[ 205.799256] ? irqentry_exit_to_user_mode+0x9/0x20
[ 205.799260] ? irqentry_exit+0x33/0x40
[ 205.799263] ? exc_page_fault+0x87/0x170
[ 205.799268] ? asm_exc_page_fault+0x8/0x30
[ 205.799273] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 205.799277] RIP: 0033:0x7ff6b80eaca1
[ 205.799281] Code: Unable to access opcode bytes at RIP 0x7ff6b80eac77.
[ 205.799283] RSP: 002b:00007fff6dfd4738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 205.799287] RAX: ffffffffffffffda RBX: 00007ff6b8215a00 RCX: 00007ff6b80eaca1
[ 205.799290] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[ 205.799293] RBP: 0000000000000001 R08: ffffffffffffff80 R09: 0000000000000028
[ 205.799295] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff6b8215a00
[ 205.799298] R13: 0000000000000000 R14: 00007ff6b821aee8 R15: 00007ff6b821af00
[ 205.799304] </TASK>
Fixes: feef318c855a ("ax25: fix UAF bugs of net_device caused by rebinding operation")
Reported-by: Bernard F6BVP <f6bvp@free.fr>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220728051821.3160118-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The commit in Fixes: has changed a .txt file into a .yaml file. Update the
documentation accordingly.
While at it add some `` around some file names to improve the output.
Fixes: 70991f1e6858 ("dt-bindings: net: convert sff,sfp to dtschema")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/be3c7e87ca7f027703247eccfe000b8e34805094.1659247114.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jason A. Donenfeld says:
====================
wireguard patches for 5.20-rc1
I had planned to send these out eventually as net.git patches, but as
you emailed earlier, I figure there's no harm in just doing this now for
net-next.git. Please apply the following small fixes:
1) Rather than using msleep() in order to approximate ktime_get_coarse_
boottime_ns(), instead use an hrtimer, rounded heuristically.
2) An update in selftest config fragments, from Lukas.
3) Linus noticed that a debugging WARN_ON() to detect (impossible) stack
corruption would still allow the corruption to happen, making it harder
to get the report about the corruption subsequently.
4) Support for User Mode Linux in the test suite. This depends on some
UML patches that are slated for 5.20. Richard hasn't sent his pull
in, but they're in his tree, so I assume it'll happen.
====================
Link: https://lore.kernel.org/r/20220802125613.340848-1-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This shoud open up various possibilities like time travel execution, and
is also just another platform to help shake out bugs.
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case push_rcu() and related functions are buggy, there's a
WARN_ON(len >= 128), which the selftest tries to hit by being tricky. In
case it is hit, we shouldn't corrupt the kernel's stack, though;
otherwise it may be hard to even receive the report that it's buggy. So
conditionalize the stack write based on that WARN_ON()'s return value.
Note that this never *actually* happens anyway. The WARN_ON() in the
first place is bounded by IS_ENABLED(DEBUG), and isn't expected to ever
actually hit. This is just a debugging sanity check.
Additionally, hoist the constant 128 into a named enum,
MAX_ALLOWEDIPS_BITS, so that it's clear why this value is chosen.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/all/CAHk-=wjJZGA6w_DxA+k7Ejbqsq+uGK==koPai3sqdsfJqemvag@mail.gmail.com/
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The kernel.config and debug.config fragments in wireguard selftests mention
some config symbols that have been reworked:
Commit c5665868183f ("mm: kmemleak: use the memory pool for early
allocations") removes the config DEBUG_KMEMLEAK_EARLY_LOG_SIZE and since
then, the config's feature is available without further configuration.
Commit 4675ff05de2d ("kmemcheck: rip it out") removes kmemcheck and the
corresponding arch config HAVE_ARCH_KMEMCHECK. There is no need for this
config.
Commit 3bf195ae6037 ("netfilter: nat: merge nf_nat_ipv4,6 into nat core")
removes the config NF_NAT_IPV4 and since then, the config's feature is
available without further configuration.
Commit 41a2901e7d22 ("rcu: Remove SPARSE_RCU_POINTER Kconfig option")
removes the config SPARSE_RCU_POINTER and since then, the config's feature
is enabled by default.
Commit dfb4357da6dd ("time: Remove CONFIG_TIMER_STATS") removes the feature
and config CONFIG_TIMER_STATS without any replacement.
Commit 3ca17b1f3628 ("lib/ubsan: remove null-pointer checks") removes the
check and config UBSAN_NULL without any replacement.
Adjust the config fragments to those changes in configs.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Using msleep() is problematic because it's compared against
ratelimiter.c's ktime_get_coarse_boottime_ns(), which means on systems
with slow jiffies (such as UML's forced HZ=100), the result is
inaccurate. So switch to using schedule_hrtimeout().
However, hrtimer gives us access only to the traditional posix timers,
and none of the _COARSE variants. So now, rather than being too
imprecise like jiffies, it's too precise.
One solution would be to give it a large "range" value, but this will
still fire early on a loaded system. A better solution is to align the
timeout to the actual coarse timer, and then round up to the nearest
tick, plus change.
So add the timeout to the current coarse time, and then
schedule_hrtimer() until the absolute computed time.
This should hopefully reduce flakes in CI as well. Note that we keep the
retry loop in case the entire function is running behind, because the
test could still be scheduled out, by either the kernel or by the
hypervisor's kernel, in which case restarting the test and hoping to not
be scheduled out still helps.
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ioam6.sh test script exits with an error code (1) when tests are
skipped due to lack of support from userspace/kernel or not enough
permissions. It should return the kselftests SKIP code instead.
Reviewed-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Link: https://lore.kernel.org/r/20220801124615.256416-1-kleber.souza@canonical.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Fixes the coverity warning 'EVALUATION_ORDER' violation. port is written
twice with the same value.
Signed-off-by: Sebin Sebastian <mailmesebin00@gmail.com>
Link: https://lore.kernel.org/r/20220801040731.34741-1-mailmesebin00@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 2dec18ad826f forgets to call mutex_unlock() before the function
returns in the error path:
New smatch warnings:
net/core/devlink.c:6392 devlink_nl_cmd_region_new() warn: inconsistent \
returns '®ion->snapshot_lock'.
Make sure we call mutex_unlock() in this error path.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 2dec18ad826f ("net: devlink: remove region snapshots list dependency on devlink->lock")
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20220801115742.1309329-1-ammar.faizi@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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destroy_workqueue() safely destroys the workqueue after draining it.
No need for the explicit call to flush_workqueue(). Remove it.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20220801112444.26175-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A pci_enable_pcie_error_reporting() should be balanced by a corresponding
pci_disable_pcie_error_reporting() call in the error handling path, as
already done in the remove function.
Fixes: 3ce7547e5b71 ("net: txgbe: Add build support for txgbe")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://lore.kernel.org/r/082003d00be1f05578c9c6434272ceb314609b8e.1659285240.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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fix follow spelling misktakes:
desconstructed ==> deconstructed
enforcment ==> enforcement
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: Xie Shaowen <studentxswpy@163.com>
Link: https://lore.kernel.org/r/20220730092254.3102875-1-studentxswpy@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 08f588fa301bef ("devlink: introduce framework for selftests") adds
documentation for devlink selftests framework, but it is missing from
table of contents.
Add it.
Link: https://lore.kernel.org/linux-doc/202207300406.CUBuyN5i-lkp@intel.com/
Fixes: 08f588fa301bef ("devlink: introduce framework for selftests")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20220730022058.16813-1-bagasdotme@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently nfp driver will reject to offload tunnel key action without
tunnel key ID which means tunnel ID is 0. But it is a normal case for tc
flower since user can setup a tunnel with tunnel ID is 0.
So we need to support this case to accept tunnel key action without
tunnel key ID.
Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220729091641.354748-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Eric Dumazet says:
====================
net: rose: fix module unload issues
Bernard Pidoux reported that unloading rose module could lead
to infamous "unregistered_netdevice:" issues.
First patch is the fix, stable candidate.
Second patch is adding netdev ref tracker to af_rose.
I chose net-next to not inflict merge conflicts, because
Jakub changed dev_put_track() to netdev_put_track() in net-next.
====================
Link: https://lore.kernel.org/r/20220729091233.1030680-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This will help debugging netdevice refcount problems with
CONFIG_NET_DEV_REFCNT_TRACKER=y
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tested-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Bernard reported that trying to unload rose module would lead
to infamous messages:
unregistered_netdevice: waiting for rose0 to become free. Usage count = xx
This patch solves the issue, by making sure each socket referring to
a netdevice holds a reference count on it, and properly releases it
in rose_release().
rose_dev_first() is also fixed to take a device reference
before leaving the rcu_read_locked section.
Following patch will add ref_tracker annotations to ease
future bug hunting.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2022-07-28
Jacob Keller says:
Convert all of the Intel drivers with PTP support to the newer .adjfine
implementation which uses scaled parts per million.
This improves the precision of the frequency adjustments by taking advantage
of the full scaled parts per million input coming from user space.
In addition, all implementations are converted to using the
mul_u64_u64_div_u64 function which better handles the intermediate value.
This function supports architecture specific instructions where possible to
avoid loss of precision if the normal 64-bit multiplication would overflow.
Of note, the i40e implementation is now able to avoid loss of precision on
slower link speeds by taking advantage of this to multiply by the link speed
factor first. This results in a significantly more precise adjustment by
allowing the calculation to impact the lower bits.
This also gets us a step closer to being able to remove the .adjfreq
entirely by removing its use from many drivers.
I plan to follow this up with a series to update the drivers from other
vendors and drop the .adjfreq implementation entirely.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
igb: convert .adjfreq to .adjfine
ixgbe: convert .adjfreq to .adjfine
i40e: convert .adjfreq to .adjfine
i40e: use mul_u64_u64_div_u64 for PTP frequency calculation
e1000e: convert .adjfreq to .adjfine
e1000e: remove unnecessary range check in e1000e_phc_adjfreq
ice: implement adjfine with mul_u64_u64_div_u64
====================
Link: https://lore.kernel.org/r/20220728181836.3387862-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 82576 PTP implementation still uses .adjfreq instead of using the newer
.adjfine.
This implementation uses a pre-simplified calculation since the base
increment value for the 82576 is just 16 * 2^19. Converting this into
scaled_ppm is tricky, and makes the intent a bit less clear.
Simply convert to the normal flow of multiplying the base increment value
by the scaled_ppm and then dividing by 1000000ULL << 16. This can be
implemented using mul_u64_u64_div_u64 which can avoid the possible overflow
that might occur for large adjustments.
Use of .adjfine can improve the precision of small adjustments and gets us
one driver closer to removing the old implementation from the kernel
entirely.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Convert the ixgbe PTP frequency adjustment implementations from .adjfreq to
.adjfine. This allows using the scaled parts per million adjustment from
the PTP core and results in a more precise adjustment for small
corrections.
To avoid overflow, use mul_u64_u64_div_u64 to perform the calculation. On
X86 platforms, this will use instructions that perform the operations with
128bit intermediate values. For other architectures, the implementation
will limit the loss of precision as much as possible.
This change slightly improves the precision of frequency adjustments for
all ixgbe based devices, and gets us one driver closer to being able to
remove the older .adjfreq implementation from the kernel.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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