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While reading netdev_max_backlog, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
While at it, we remove the unnecessary spaces in the doc.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While reading weight_p, it can be changed concurrently. Thus, we need
to add READ_ONCE() to its reader.
Also, dev_[rt]x_weight can be read/written at the same time. So, we
need to use READ_ONCE() and WRITE_ONCE() for its access. Moreover, to
use the same weight_p while changing dev_[rt]x_weight, we add a mutex
in proc_do_dev_weight().
Fixes: 3d48b53fb2 ("net: dev_weight: TX/RX orthogonality")
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While reading sysctl_[rw]mem_(max|default), they can be changed
concurrently. Thus, we need to add READ_ONCE() to its readers.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
skb_copy_bits() could fail, which requires a check on the return
value.
Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net): ipsec 2022-08-24
1) Fix a refcount leak in __xfrm_policy_check.
From Xin Xiong.
2) Revert "xfrm: update SA curlft.use_time". This
violates RFC 2367. From Antony Antony.
3) Fix a comment on XFRMA_LASTUSED.
From Antony Antony.
4) x->lastused is not cloned in xfrm_do_migrate.
Fix from Antony Antony.
5) Serialize the calls to xfrm_probe_algs.
From Herbert Xu.
6) Fix a null pointer dereference of dst->dev on a metadata
dst in xfrm_lookup_with_ifid. From Nikolay Aleksandrov.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
On link state change, the controller gets reset,
causing PPS to drop out and the PHC to lose its
time and calibration. So we restart it if needed,
restoring calibration and time registers.
Changes since v2:
* Add `fec_ptp_save_state()`/`fec_ptp_restore_state()`
* Use `ktime_get_real_ns()`
* Use `BIT()` macro
Changes since v1:
* More ECR #define's
* Stop PPS in `fec_ptp_stop()`
Signed-off-by: Csókás Bence <csokas.bence@prolan.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So add all skb to
a tmp list, then free them after spin_unlock_irqrestore() at
once.
Fixes: 66ba215cb5 ("neigh: fix possible DoS due to net iface start/stop loop")
Suggested-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'mlx5-fixes-2022-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2022-08-22
This series provides bug fixes to mlx5 driver.
* tag 'mlx5-fixes-2022-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Unlock on error in mlx5_sriov_enable()
net/mlx5e: Fix use after free in mlx5e_fs_init()
net/mlx5e: kTLS, Use _safe() iterator in mlx5e_tls_priv_tx_list_cleanup()
net/mlx5: unlock on error path in esw_vfs_changed_event_handler()
net/mlx5e: Fix wrong tc flag used when set hw-tc-offload off
net/mlx5e: TC, Add missing policer validation
net/mlx5e: Fix wrong application of the LRO state
net/mlx5: Avoid false positive lockdep warning by adding lock_class_key
net/mlx5: Fix cmd error logging for manage pages cmd
net/mlx5: Disable irq when locking lag_lock
net/mlx5: Eswitch, Fix forwarding decision to uplink
net/mlx5: LAG, fix logic over MLX5_LAG_FLAG_NDEVS_READY
net/mlx5e: Properly disable vlan strip on non-UL reps
====================
Link: https://lore.kernel.org/r/20220822195917.216025-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
ice: xsk: reduced queue count fixes
Maciej Fijalkowski says:
this small series is supposed to fix the issues around AF_XDP usage with
reduced queue count on interface. Due to the XDP rings setup, some
configurations can result in sockets not seeing traffic flowing. More
about this in description of patch 2.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: xsk: use Rx ring's XDP ring when picking NAPI context
ice: xsk: prohibit usage of non-balanced queue id
====================
Link: https://lore.kernel.org/r/20220822163257.2382487-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Michael Chan says:
====================
bnxt_en: Bug fixes
This series includes 2 fixes for regressions introduced by the XDP
multi-buffer feature, 1 devlink reload bug fix, and 1 SRIOV resource
accounting bug fix.
====================
Link: https://lore.kernel.org/r/1661180814-19350-1-git-send-email-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
LRO/GRO_HW should be disabled if there is an attached XDP program.
BNXT_FLAG_TPA is the current setting of the LRO/GRO_HW. Using
BNXT_FLAG_TPA to disable LRO/GRO_HW will cause these features to be
permanently disabled once they are disabled.
Fixes: 1dc4c557bf ("bnxt: adding bnxt_xdp_build_skb to build skb from multibuffer xdp_buff")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There are 2 issues:
1. We should decrement hw_resc->max_nqs instead of hw_resc->max_irqs
with the number of NQs assigned to the VFs. The IRQs are fixed
on each function and cannot be re-assigned. Only the NQs are being
assigned to the VFs.
2. vf_msix is the total number of NQs to be assigned to the VFs. So
we should decrement vf_msix from hw_resc->max_nqs.
Fixes: b16b689186 ("bnxt_en: Add SR-IOV support for 57500 chips.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add missing devlink_set_features() API for callbacks reload_down
and reload_up to function.
Fixes: 228ea8c187 ("bnxt_en: implement devlink dev reload driver_reinit")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Using BNXT_PAGE_MODE_BUF_SIZE + offset as buffer length value is not
sufficient when running single buffer XDP programs doing redirect
operations. The stack will complain on missing skb tail room. Fix it
by using PAGE_SIZE when calling xdp_init_buff() for single buffer
programs.
Fixes: b231c3f341 ("bnxt: refactor bnxt_rx_xdp to separate xdp_init_buff/xdp_prepare_buff")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Address learning should initially be turned off by the driver for port
operation in standalone mode, then the DSA core handles changes to it
via ds->ops->port_bridge_flags().
Leaving address learning enabled while ports are standalone breaks any
kind of communication which involves port B receiving what port A has
sent. Notably it breaks the ksz9477 driver used with a (non offloaded,
ports act as if standalone) bonding interface in active-backup mode,
when the ports are connected together through external switches, for
redundancy purposes.
This fixes a major design flaw in the ksz9477 and ksz8795 drivers, which
unconditionally leave address learning enabled even while ports operate
as standalone.
Fixes: b987e98e50 ("dsa: add DSA switch driver for Microchip KSZ9477")
Link: https://lore.kernel.org/netdev/CAFZh4h-JVWt80CrQWkFji7tZJahMfOToUJQgKS5s0_=9zzpvYQ@mail.gmail.com/
Reported-by: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220818164809.3198039-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When a driver returns -EOPNOTSUPP in dsa_port_bridge_join() but failed
to provide a reason for it, DSA attempts to set the extack to say that
software fallback will kick in.
The problem is, when we use brctl and the legacy bridge ioctls, the
extack will be NULL, and DSA dereferences it in the process of setting
it.
Sergei Antonov proves this using the following stack trace:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
PC is at dsa_slave_changeupper+0x5c/0x158
dsa_slave_changeupper from raw_notifier_call_chain+0x38/0x6c
raw_notifier_call_chain from __netdev_upper_dev_link+0x198/0x3b4
__netdev_upper_dev_link from netdev_master_upper_dev_link+0x50/0x78
netdev_master_upper_dev_link from br_add_if+0x430/0x7f4
br_add_if from br_ioctl_stub+0x170/0x530
br_ioctl_stub from br_ioctl_call+0x54/0x7c
br_ioctl_call from dev_ifsioc+0x4e0/0x6bc
dev_ifsioc from dev_ioctl+0x2f8/0x758
dev_ioctl from sock_ioctl+0x5f0/0x674
sock_ioctl from sys_ioctl+0x518/0xe40
sys_ioctl from ret_fast_syscall+0x0/0x1c
Fix the problem by only overriding the extack if non-NULL.
Fixes: 1c6e8088d9 ("net: dsa: allow port_bridge_join() to override extack message")
Link: https://lore.kernel.org/netdev/CABikg9wx7vB5eRDAYtvAm7fprJ09Ta27a4ZazC=NX5K4wn6pWA@mail.gmail.com/
Reported-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Sergei Antonov <saproj@gmail.com>
Link: https://lore.kernel.org/r/20220819173925.3581871-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Looks to have been left out in an oversight.
Cc: Mahesh Bandewar <maheshb@google.com>
Cc: Sainath Grandhi <sainath.grandhi@intel.com>
Fixes: 235a9d89da ('ipvtap: IP-VLAN based tap driver')
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Link: https://lore.kernel.org/r/20220821130808.12143-1-zenczykowski@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Jonathan Toppins says:
====================
bonding: 802.3ad: fix no transmission of LACPDUs
Configuring a bond in a specific order can leave the bond in a state
where it never transmits LACPDUs.
The first patch adds some kselftest infrastructure and the reproducer
that demonstrates the problem. The second patch fixes the issue. The
new third patch makes ad_ticks_per_sec a static const and removes the
passing of this variable via the stack.
====================
Link: https://lore.kernel.org/r/cover.1660919940.git.jtoppins@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The value is only ever set once in bond_3ad_initialize and only ever
read otherwise. There seems to be no reason to set the variable via
bond_3ad_initialize when setting the global variable will do. Change
ad_ticks_per_sec to a const to enforce its read-only usage.
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This is caused by the global variable ad_ticks_per_sec being zero as
demonstrated by the reproducer script discussed below. This causes
all timer values in __ad_timer_to_ticks to be zero, resulting
in the periodic timer to never fire.
To reproduce:
Run the script in
`tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh` which
puts bonding into a state where it never transmits LACPDUs.
line 44: ip link add fbond type bond mode 4 miimon 200 \
xmit_hash_policy 1 ad_actor_sys_prio 65535 lacp_rate fast
setting bond param: ad_actor_sys_prio
given:
params.ad_actor_system = 0
call stack:
bond_option_ad_actor_sys_prio()
-> bond_3ad_update_ad_actor_settings()
-> set ad.system.sys_priority = bond->params.ad_actor_sys_prio
-> ad.system.sys_mac_addr = bond->dev->dev_addr; because
params.ad_actor_system == 0
results:
ad.system.sys_mac_addr = bond->dev->dev_addr
line 48: ip link set fbond address 52:54:00:3B:7C:A6
setting bond MAC addr
call stack:
bond->dev->dev_addr = new_mac
line 52: ip link set fbond type bond ad_actor_sys_prio 65535
setting bond param: ad_actor_sys_prio
given:
params.ad_actor_system = 0
call stack:
bond_option_ad_actor_sys_prio()
-> bond_3ad_update_ad_actor_settings()
-> set ad.system.sys_priority = bond->params.ad_actor_sys_prio
-> ad.system.sys_mac_addr = bond->dev->dev_addr; because
params.ad_actor_system == 0
results:
ad.system.sys_mac_addr = bond->dev->dev_addr
line 60: ip link set veth1-bond down master fbond
given:
params.ad_actor_system = 0
params.mode = BOND_MODE_8023AD
ad.system.sys_mac_addr == bond->dev->dev_addr
call stack:
bond_enslave
-> bond_3ad_initialize(); because first slave
-> if ad.system.sys_mac_addr != bond->dev->dev_addr
return
results:
Nothing is run in bond_3ad_initialize() because dev_addr equals
sys_mac_addr leaving the global ad_ticks_per_sec zero as it is
never initialized anywhere else.
The if check around the contents of bond_3ad_initialize() is no longer
needed due to commit 5ee14e6d33 ("bonding: 3ad: apply ad_actor settings
changes immediately") which sets ad.system.sys_mac_addr if any one of
the bonding parameters whos set function calls
bond_3ad_update_ad_actor_settings(). This is because if
ad.system.sys_mac_addr is zero it will be set to the current bond mac
address, this causes the if check to never be true.
Fixes: 5ee14e6d33 ("bonding: 3ad: apply ad_actor settings changes immediately")
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This creates a test collection in drivers/net/bonding for bonding
specific kernel selftests.
The first test is a reproducer that provisions a bond and given the
specific order in how the ip-link(8) commands are issued the bond never
transmits an LACPDU frame on any of its slaves.
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since priv->rx_mapping[i] is maped in moxart_mac_open(), we
should unmap it from moxart_mac_stop(). Fixes 2 warnings.
1. During error unwinding in moxart_mac_probe(): "goto init_fail;",
then moxart_mac_free_memory() calls dma_unmap_single() with
priv->rx_mapping[i] pointers zeroed.
WARNING: CPU: 0 PID: 1 at kernel/dma/debug.c:963 check_unmap+0x704/0x980
DMA-API: moxart-ethernet 92000000.mac: device driver tries to free DMA memory it has not allocated [device address=0x0000000000000000] [size=1600 bytes]
CPU: 0 PID: 1 Comm: swapper Not tainted 5.19.0+ #60
Hardware name: Generic DT based system
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x34/0x44
dump_stack_lvl from __warn+0xbc/0x1f0
__warn from warn_slowpath_fmt+0x94/0xc8
warn_slowpath_fmt from check_unmap+0x704/0x980
check_unmap from debug_dma_unmap_page+0x8c/0x9c
debug_dma_unmap_page from moxart_mac_free_memory+0x3c/0xa8
moxart_mac_free_memory from moxart_mac_probe+0x190/0x218
moxart_mac_probe from platform_probe+0x48/0x88
platform_probe from really_probe+0xc0/0x2e4
2. After commands:
ip link set dev eth0 down
ip link set dev eth0 up
WARNING: CPU: 0 PID: 55 at kernel/dma/debug.c:570 add_dma_entry+0x204/0x2ec
DMA-API: moxart-ethernet 92000000.mac: cacheline tracking EEXIST, overlapping mappings aren't supported
CPU: 0 PID: 55 Comm: ip Not tainted 5.19.0+ #57
Hardware name: Generic DT based system
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x34/0x44
dump_stack_lvl from __warn+0xbc/0x1f0
__warn from warn_slowpath_fmt+0x94/0xc8
warn_slowpath_fmt from add_dma_entry+0x204/0x2ec
add_dma_entry from dma_map_page_attrs+0x110/0x328
dma_map_page_attrs from moxart_mac_open+0x134/0x320
moxart_mac_open from __dev_open+0x11c/0x1ec
__dev_open from __dev_change_flags+0x194/0x22c
__dev_change_flags from dev_change_flags+0x14/0x44
dev_change_flags from devinet_ioctl+0x6d4/0x93c
devinet_ioctl from inet_ioctl+0x1ac/0x25c
v1 -> v2:
Extraneous change removed.
Fixes: 6c821bd9ed ("net: Add MOXA ART SoCs ethernet driver")
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220819110519.1230877-1-saproj@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For some MAC drivers, they set the mac_managed_pm to true in its
->ndo_open() callback. So before the mac_managed_pm is set to true,
we still want to leverage the mdio_bus_phy_suspend()/resume() for
the phy device suspend and resume. In this case, the phy device is
in PHY_READY, and we shouldn't warn about this. It also seems that
the check of mac_managed_pm in WARN_ON is redundant since we already
check this in the entry of mdio_bus_phy_resume(), so drop it.
Fixes: 744d23c71a ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220819082451.1992102-1-xiaolei.wang@windriver.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In ipa_smem_init(), a Qualcomm SMEM region is allocated (if needed)
and then its virtual address is fetched using qcom_smem_get(). The
physical address associated with that region is also fetched.
The physical address is adjusted so that it is page-aligned, and an
attempt is made to update the size of the region to compensate for
any non-zero adjustment.
But that adjustment isn't done properly. The physical address is
aligned twice, and as a result the size is never actually adjusted.
Fix this by *not* aligning the "addr" local variable, and instead
making the "phys" local variable be the adjusted "addr" value.
Fixes: a0036bb413 ("net: ipa: define SMEM memory region for IPA")
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20220818134206.567618-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
DSA has multiple ways of specifying a MAC connection to an internal PHY.
One requires a DT description like this:
port@0 {
reg = <0>;
phy-handle = <&internal_phy>;
phy-mode = "internal";
};
(which is IMO the recommended approach, as it is the clearest
description)
but it is also possible to leave the specification as just:
port@0 {
reg = <0>;
}
and if the driver implements ds->ops->phy_read and ds->ops->phy_write,
the DSA framework "knows" it should create a ds->slave_mii_bus, and it
should connect to a non-OF-based internal PHY on this MDIO bus, at an
MDIO address equal to the port address.
There is also an intermediary way of describing things:
port@0 {
reg = <0>;
phy-handle = <&internal_phy>;
};
In case 2, DSA calls phylink_connect_phy() and in case 3, it calls
phylink_of_phy_connect(). In both cases, phylink_create() has been
called with a phy_interface_t of PHY_INTERFACE_MODE_NA, and in both
cases, PHY_INTERFACE_MODE_NA is translated into phy->interface.
It is important to note that phy_device_create() initializes
dev->interface = PHY_INTERFACE_MODE_GMII, and so, when we use
phylink_create(PHY_INTERFACE_MODE_NA), no one will override this, and we
will end up with a PHY_INTERFACE_MODE_GMII interface inherited from the
PHY.
All this means that in order to maintain compatibility with device tree
blobs where the phy-mode property is missing, we need to allow the
"gmii" phy-mode and treat it as "internal".
Fixes: 2c709e0bda ("net: dsa: microchip: ksz8795: add phylink support")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216320
Reported-by: Craig McQueen <craig@mcqueen.id.au>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Tested-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Link: https://lore.kernel.org/r/20220818143250.2797111-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use the list_for_each_entry_safe() macro to prevent dereferencing "obj"
after it has been freed.
Fixes: c4dfe704f5 ("net/mlx5e: kTLS, Recycle objects of device-offloaded TLS TX connections")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Unlock before returning on this error path.
Fixes: f1bc646c9a ("net/mlx5: Use devl_ API in mlx5_esw_offloads_devlink_port_register")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
The cited commit reintroduced the ability to set hw-tc-offload
in switchdev mode by reusing NIC mode calls without modifying it
to support both modes, this can cause an illegal memory access
when trying to turn hw-tc-offload off.
Fix this by using the right TC_FLAG when checking if tc rules
are installed while disabling hw-tc-offload.
Fixes: d3cbd4254d ("net/mlx5e: Add ndo_set_feature for uplink representor")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
There is a missing policer validation when offloading police action
with tc action api. Add it.
Fixes: 7d1a5ce46e ("net/mlx5e: TC, Support tc action api for police")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Driver caches packet merge type in mlx5e_params instance which must be
in perfect sync with the netdev_feature's bit.
Prior to this patch, in certain conditions (*) LRO state was set in
mlx5e_params, while netdev_feature's bit was off. Causing the LRO to
be applied on the RQs (HW level).
(*) This can happen only on profile init (mlx5e_build_nic_params()),
when RQ expect non-linear SKB and PCI is fast enough in comparison to
link width.
Solution: remove setting of packet merge type from
mlx5e_build_nic_params() as netdev features are not updated.
Fixes: 619a8f2a42 ("net/mlx5e: Use linear SKB in Striding RQ")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When the driver unloads, give/reclaim_pages may fail as PF driver in
teardown flow, current code will lead to the following kernel log print
'failed reclaiming pages: err 0'.
Fix it to get same behavior as before the cited commits,
by calling mlx5_cmd_check before handling error state.
mlx5_cmd_check will verify if the returned error is an actual error
needed to be handled by the driver or not and will return an
appropriate value.
Fixes: 8d564292a1 ("net/mlx5: Remove redundant error on reclaim pages")
Fixes: 4dac2f10ad ("net/mlx5: Remove redundant notify fail on give pages")
Signed-off-by: Roy Novich <royno@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Make sure to modify the rule for uplink forwarding only for the case
where destination vport number is MLX5_VPORT_UPLINK.
Fixes: 94db331778 ("net/mlx5: Support multiport eswitch mode")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When querying mlx5 non-uplink representors capabilities with ethtool
rx-vlan-offload is marked as "off [fixed]". However, it is actually always
enabled because mlx5e_params->vlan_strip_disable is 0 by default when
initializing struct mlx5e_params instance. Fix the issue by explicitly
setting the vlan_strip_disable to 'true' for non-uplink representors.
Fixes: cb67b83292 ("net/mlx5e: Introduce SRIOV VF representors")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Ice driver allocates per cpu XDP queues so that redirect path can safely
use smp_processor_id() as an index to the array. At the same time
though, XDP rings are used to pick NAPI context to call napi_schedule()
or set NAPIF_STATE_MISSED. When user reduces queue count, say to 8, and
num_possible_cpus() of underlying platform is 44, then this means queue
vectors with correlated NAPI contexts will carry several XDP queues.
This in turn can result in a broken behavior where NAPI context of
interest will never be scheduled and AF_XDP socket will not process any
traffic.
To fix this, let us change the way how XDP rings are assigned to Rx
rings and use this information later on when setting
ice_tx_ring::xsk_pool pointer. For each Rx ring, grab the associated
queue vector and walk through Tx ring's linked list. Once we stumble
upon XDP ring in it, assign this ring to ice_rx_ring::xdp_ring.
Previous [0] approach of fixing this issue was for txonly scenario
because of the described grouping of XDP rings across queue vectors. So,
relying on Rx ring meant that NAPI context could be scheduled with a
queue vector without XDP ring with associated XSK pool.
[0]: https://lore.kernel.org/netdev/20220707161128.54215-1-maciej.fijalkowski@intel.com/
Fixes: 2d4238f556 ("ice: Add support for AF_XDP")
Fixes: 22bf877e52 ("ice: introduce XDP_TX fallback path")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
When the pn532 uart device is detaching, the pn532_uart_remove()
is called. But there are no functions in pn532_uart_remove() that
could delete the cmd_timeout timer, which will cause use-after-free
bugs. The process is shown below:
(thread 1) | (thread 2)
| pn532_uart_send_frame
pn532_uart_remove | mod_timer(&pn532->cmd_timeout,...)
... | (wait a time)
kfree(pn532) //FREE | pn532_cmd_timeout
| pn532_uart_send_frame
| pn532->... //USE
This patch adds del_timer_sync() in pn532_uart_remove() in order to
prevent the use-after-free bugs. What's more, the pn53x_unregister_nfc()
is well synchronized, it sets nfc_dev->shutting_down to true and there
are no syscalls could restart the cmd_timeout timer.
Fixes: c656aa4c27 ("nfc: pn533: add UART phy driver")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hayes Wang says:
====================
r8152: fix flow control settings
These patches fix the settings of RX FIFO about flow control.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The RX FIFO would be changed when suspending, so the related settings
have to be modified, too. Otherwise, the flow control would work
abnormally.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216333
Reported-by: Mark Blakeney <mark.blakeney@bullet-systems.net>
Fixes: cdf0b86b25 ("r8152: fix a WOL issue")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The units of PLA_RX_FIFO_FULL and PLA_RX_FIFO_EMPTY are 16 bytes.
Fixes: 195aae321c ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 3b3fd068c5 added NULL check for
`rose_loopback_neigh->dev` in rose_loopback_timer() but omitted to
check rose_loopback_neigh->loopback.
It thus prevents *all* rose connect.
The reason is that a special rose_neigh loopback has a NULL device.
/proc/net/rose_neigh illustrates it via rose_neigh_show() function :
[...]
seq_printf(seq, "%05d %-9s %-4s %3d %3d %3s %3s %3lu %3lu",
rose_neigh->number,
(rose_neigh->loopback) ? "RSLOOP-0" : ax2asc(buf, &rose_neigh->callsign),
rose_neigh->dev ? rose_neigh->dev->name : "???",
rose_neigh->count,
/proc/net/rose_neigh displays special rose_loopback_neigh->loopback as
callsign RSLOOP-0:
addr callsign dev count use mode restart t0 tf digipeaters
00001 RSLOOP-0 ??? 1 2 DCE yes 0 0
By checking rose_loopback_neigh->loopback, rose_rx_call_request() is called
even in case rose_loopback_neigh->dev is NULL. This repairs rose connections.
Verification with rose client application FPAC:
FPAC-Node v 4.1.3 (built Aug 5 2022) for LINUX (help = h)
F6BVP-4 (Commands = ?) : u
Users - AX.25 Level 2 sessions :
Port Callsign Callsign AX.25 state ROSE state NetRom status
axudp F6BVP-5 -> F6BVP-9 Connected Connected ---------
Fixes: 3b3fd068c5 ("rose: Fix Null pointer dereference in rose_send_frame()")
Signed-off-by: Bernard Pidoux <f6bvp@free.fr>
Suggested-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Thomas DL9SAU Osterried <thomas@osterried.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 6fc498bc82.
Commit 6fc498bc82 states:
SCI should be updated, because it contains MAC in its first 6
octets.
That's not entirely correct. The SCI can be based on the MAC address,
but doesn't have to be. We can also use any 64-bit number as the
SCI. When the SCI based on the MAC address, it uses a 16-bit "port
number" provided by userspace, which commit 6fc498bc82 overwrites
with 1.
In addition, changing the SCI after macsec has been setup can just
confuse the receiver. If we configure the RXSC on the peer based on
the original SCI, we should keep the same SCI on TX.
When the macsec device is being managed by a userspace key negotiation
daemon such as wpa_supplicant, commit 6fc498bc82 would also
overwrite the SCI defined by userspace.
Fixes: 6fc498bc82 ("net: macsec: update SCI upon MAC address change.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/9b1a9d28327e7eb54550a92eebda45d25e54dd0d.1660667033.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As discussed in commit 73a21fa817 ("dpaa_eth: support all modes with
rate adapting PHYs"), we must add a workaround for Aquantia phys with
in-tree support in order to keep 1G support working. Update this
workaround for the AQR113C phy found on revision C LS1046ARDB boards.
Fixes: 12cf1b89a6 ("net: phy: Add support for AQR113C EPHY")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220818164029.2063293-1-sean.anderson@seco.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- tcp: fix cleanup and leaks in tcp_read_skb() (the new way BPF
socket maps get data out of the TCP stack)
- tls: rx: react to strparser initialization errors
- netfilter: nf_tables: fix scheduling-while-atomic splat
- net: fix suspicious RCU usage in bpf_sk_reuseport_detach()
Current release - new code bugs:
- mlxsw: ptp: fix a couple of races, static checker warnings
and error handling
Previous releases - regressions:
- netfilter:
- nf_tables: fix possible module reference underflow in error path
- make conntrack helpers deal with BIG TCP (skbs > 64kB)
- nfnetlink: re-enable conntrack expectation events
- net: fix potential refcount leak in ndisc_router_discovery()
Previous releases - always broken:
- sched: cls_route: disallow handle of 0
- neigh: fix possible local DoS due to net iface start/stop loop
- rtnetlink: fix module refcount leak in rtnetlink_rcv_msg
- sched: fix adding qlen to qcpu->backlog in gnet_stats_add_queue_cpu
- virtio_net: fix endian-ness for RSS
- dsa: mv88e6060: prevent crash on an unused port
- fec: fix timer capture timing in `fec_ptp_enable_pps()`
- ocelot: stats: fix races, integer wrapping and reading incorrect
registers (the change of register definitions here accounts for
bulk of the changed LoC in this PR)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter.
Current release - regressions:
- tcp: fix cleanup and leaks in tcp_read_skb() (the new way BPF
socket maps get data out of the TCP stack)
- tls: rx: react to strparser initialization errors
- netfilter: nf_tables: fix scheduling-while-atomic splat
- net: fix suspicious RCU usage in bpf_sk_reuseport_detach()
Current release - new code bugs:
- mlxsw: ptp: fix a couple of races, static checker warnings and
error handling
Previous releases - regressions:
- netfilter:
- nf_tables: fix possible module reference underflow in error path
- make conntrack helpers deal with BIG TCP (skbs > 64kB)
- nfnetlink: re-enable conntrack expectation events
- net: fix potential refcount leak in ndisc_router_discovery()
Previous releases - always broken:
- sched: cls_route: disallow handle of 0
- neigh: fix possible local DoS due to net iface start/stop loop
- rtnetlink: fix module refcount leak in rtnetlink_rcv_msg
- sched: fix adding qlen to qcpu->backlog in gnet_stats_add_queue_cpu
- virtio_net: fix endian-ness for RSS
- dsa: mv88e6060: prevent crash on an unused port
- fec: fix timer capture timing in `fec_ptp_enable_pps()`
- ocelot: stats: fix races, integer wrapping and reading incorrect
registers (the change of register definitions here accounts for
bulk of the changed LoC in this PR)"
* tag 'net-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (77 commits)
net: moxa: MAC address reading, generating, validity checking
tcp: handle pure FIN case correctly
tcp: refactor tcp_read_skb() a bit
tcp: fix tcp_cleanup_rbuf() for tcp_read_skb()
tcp: fix sock skb accounting in tcp_read_skb()
igb: Add lock to avoid data race
dt-bindings: Fix incorrect "the the" corrections
net: genl: fix error path memory leak in policy dumping
stmmac: intel: Add a missing clk_disable_unprepare() call in intel_eth_pci_remove()
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_xdp_run
net/mlx5e: Allocate flow steering storage during uplink initialization
net: mscc: ocelot: report ndo_get_stats64 from the wraparound-resistant ocelot->stats
net: mscc: ocelot: keep ocelot_stat_layout by reg address, not offset
net: mscc: ocelot: make struct ocelot_stat_layout array indexable
net: mscc: ocelot: fix race between ndo_get_stats64 and ocelot_check_stats_work
net: mscc: ocelot: turn stats_lock into a spinlock
net: mscc: ocelot: fix address of SYS_COUNT_TX_AGING counter
net: mscc: ocelot: fix incorrect ndo_get_stats64 packet counters
net: dsa: felix: fix ethtool 256-511 and 512-1023 TX packet counters
net: dsa: don't warn in dsa_port_set_state_now() when driver doesn't support it
...
This Kselftest fixes update for Linux 6.0-rc2 consists of a single
patch to fix landlock test build regression.
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Merge tag 'linux-kselftest-next-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
- fix landlock test build regression
* tag 'linux-kselftest-next-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/landlock: fix broken include of linux/landlock.h
- Fix tracer name in comments and prints
- Fix setting up symlinks
- Allow extra flags to be set in build
- Consolidate and show all necessary libraries not found in build error
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Merge tag 'trace-rtla-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull rtla tool fixes from Steven Rostedt:
"Fixes for the Real-Time Linux Analysis tooling:
- Fix tracer name in comments and prints
- Fix setting up symlinks
- Allow extra flags to be set in build
- Consolidate and show all necessary libraries not found in build
error"
* tag 'trace-rtla-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
rtla: Consolidate and show all necessary libraries that failed for building
tools/rtla: Build with EXTRA_{C,LD}FLAGS
tools/rtla: Fix command symlinks
rtla: Fix tracer name
