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Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: FLorian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20230823085632.116725-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Leon Romanovsky says:
====================
mlx5 MACsec RoCEv2 support
From Patrisious:
This series extends previously added MACsec offload support
to cover RoCE traffic either.
In order to achieve that, we need configure MACsec with offload between
the two endpoints, like below:
REMOTE_MAC=10:70:fd:43:71:c0
* ip addr add 1.1.1.1/16 dev eth2
* ip link set dev eth2 up
* ip link add link eth2 macsec0 type macsec encrypt on
* ip macsec offload macsec0 mac
* ip macsec add macsec0 tx sa 0 pn 1 on key 00 dffafc8d7b9a43d5b9a3dfbbf6a30c16
* ip macsec add macsec0 rx port 1 address $REMOTE_MAC
* ip macsec add macsec0 rx port 1 address $REMOTE_MAC sa 0 pn 1 on key 01 ead3664f508eb06c40ac7104cdae4ce5
* ip addr add 10.1.0.1/16 dev macsec0
* ip link set dev macsec0 up
And in a similar manner on the other machine, while noting the keys order
would be reversed and the MAC address of the other machine.
RDMA traffic is separated through relevant GID entries and in case
of IP ambiguity issue - meaning we have a physical GIDs and a MACsec
GIDs with the same IP/GID, we disable our physical GID in order
to force the user to only use the MACsec GID.
v0: https://lore.kernel.org/netdev/20230813064703.574082-1-leon@kernel.org/
* 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
RDMA/mlx5: Handles RoCE MACsec steering rules addition and deletion
net/mlx5: Add RoCE MACsec steering infrastructure in core
net/mlx5: Configure MACsec steering for ingress RoCEv2 traffic
net/mlx5: Configure MACsec steering for egress RoCEv2 traffic
IB/core: Reorder GID delete code for RoCE
net/mlx5: Add MACsec priorities in RDMA namespaces
RDMA/mlx5: Implement MACsec gid addition and deletion
net/mlx5: Maintain fs_id xarray per MACsec device inside macsec steering
net/mlx5: Remove netdevice from MACsec steering
net/mlx5e: Move MACsec flow steering and statistics database from ethernet to core
net/mlx5e: Rename MACsec flow steering functions/parameters to suit core naming style
net/mlx5: Remove dependency of macsec flow steering on ethernet
net/mlx5e: Move MACsec flow steering operations to be used as core library
macsec: add functions to get macsec real netdevice and check offload
====================
Link: https://lore.kernel.org/r/20230821073833.59042-1-leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It's somewhat unfortunate but with (my?) the current tooling
if people post new versions of a set in reply to an old version
managing the review queue gets difficult. So recommend against it.
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20230823154922.1162644-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Remove the necessity to modify skb_ext_total_length() when new extension
types are added.
Also reduces the line count a bit.
With optimizations enabled the function is folded down to the same
constant value as before during compilation.
This has been validated on x86 with GCC 6.5.0 and 13.2.1.
Also a similar construct has been validated on godbolt.org with GCC 5.1.
In any case the compiler has to be able to evaluate the construct at
compile-time for the BUILD_BUG_ON() in skb_extensions_init().
Even if not evaluated at compile-time this function would only ever
be executed once at run-time, so the overhead would be very minuscule.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230823-skb_ext-simplify-v2-1-66e26cd66860@weissschuh.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR.
Conflicts:
include/net/inet_sock.h
f866fbc842de ("ipv4: fix data-races around inet->inet_id")
c274af224269 ("inet: introduce inet->inet_flags")
https://lore.kernel.org/all/679ddff6-db6e-4ff6-b177-574e90d0103d@tessares.net/
Adjacent changes:
drivers/net/bonding/bond_alb.c
e74216b8def3 ("bonding: fix macvlan over alb bond support")
f11e5bd159b0 ("bonding: support balance-alb with openvswitch")
drivers/net/ethernet/broadcom/bgmac.c
d6499f0b7c7c ("net: bgmac: Return PTR_ERR() for fixed_phy_register()")
23a14488ea58 ("net: bgmac: Fix return value check for fixed_phy_register()")
drivers/net/ethernet/broadcom/genet/bcmmii.c
32bbe64a1386 ("net: bcmgenet: Fix return value check for fixed_phy_register()")
acf50d1adbf4 ("net: bcmgenet: Return PTR_ERR() for fixed_phy_register()")
net/sctp/socket.c
f866fbc842de ("ipv4: fix data-races around inet->inet_id")
b09bde5c3554 ("inet: move inet->mc_loop to inet->inet_frags")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from wifi, can and netfilter.
Fixes to fixes:
- nf_tables:
- GC transaction race with abort path
- defer gc run if previous batch is still pending
Previous releases - regressions:
- ipv4: fix data-races around inet->inet_id
- phy: fix deadlocking in phy_error() invocation
- mdio: fix C45 read/write protocol
- ipvlan: fix a reference count leak warning in ipvlan_ns_exit()
- ice: fix NULL pointer deref during VF reset
- i40e: fix potential NULL pointer dereferencing of pf->vf in
i40e_sync_vsi_filters()
- tg3: use slab_build_skb() when needed
- mtk_eth_soc: fix NULL pointer on hw reset
Previous releases - always broken:
- core: validate veth and vxcan peer ifindexes
- sched: fix a qdisc modification with ambiguous command request
- devlink: add missing unregister linecard notification
- wifi: mac80211: limit reorder_buf_filtered to avoid UBSAN warning
- batman:
- do not get eth header before batadv_check_management_packet
- fix batadv_v_ogm_aggr_send memory leak
- bonding: fix macvlan over alb bond support
- mlxsw: set time stamp fields also when its type is MIRROR_UTC"
* tag 'net-6.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits)
selftests: bonding: add macvlan over bond testing
selftest: bond: add new topo bond_topo_2d1c.sh
bonding: fix macvlan over alb bond support
rtnetlink: Reject negative ifindexes in RTM_NEWLINK
netfilter: nf_tables: defer gc run if previous batch is still pending
netfilter: nf_tables: fix out of memory error handling
netfilter: nf_tables: use correct lock to protect gc_list
netfilter: nf_tables: GC transaction race with abort path
netfilter: nf_tables: flush pending destroy work before netlink notifier
netfilter: nf_tables: validate all pending tables
ibmveth: Use dcbf rather than dcbfl
i40e: fix potential NULL pointer dereferencing of pf->vf i40e_sync_vsi_filters()
net/sched: fix a qdisc modification with ambiguous command request
igc: Fix the typo in the PTM Control macro
batman-adv: Hold rtnl lock during MTU update via netlink
igb: Avoid starting unnecessary workqueues
can: raw: add missing refcount for memory leak fix
can: isotp: fix support for transmission of SF without flow control
bnx2x: new flag for track HW resource allocation
sfc: allocate a big enough SKB for loopback selftest packet
...
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2023-08-22
1) Patches #1..#13 From Jiri:
The goal of this patchset is to make the SF code cleaner.
Benefit from previously introduced devlink_port struct containerization
to avoid unnecessary lookups in devlink port ops.
Also, benefit from the devlink locking changes and avoid unnecessary
reference counting.
2) Patches #14,#15:
Add ability to configure proto both UDP and TCP selectors in RX and TX
directions.
* tag 'mlx5-updates-2023-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5e: Support IPsec upper TCP protocol selector
net/mlx5e: Support IPsec upper protocol selector field offload for RX
net/mlx5: Store vport in struct mlx5_devlink_port and use it in port ops
net/mlx5: Check vhca_resource_manager capability in each op and add extack msg
net/mlx5: Relax mlx5_devlink_eswitch_get() return value checking
net/mlx5: Return -EOPNOTSUPP in mlx5_devlink_port_fn_migratable_set() directly
net/mlx5: Reduce number of vport lookups passing vport pointer instead of index
net/mlx5: Embed struct devlink_port into driver structure
net/mlx5: Don't register ops for non-PF/VF/SF port and avoid checks in ops
net/mlx5: Remove no longer used mlx5_esw_offloads_sf_vport_enable/disable()
net/mlx5: Introduce mlx5_eswitch_load/unload_sf_vport() and use it from SF code
net/mlx5: Allow mlx5_esw_offloads_devlink_port_register() to register SFs
net/mlx5: Push devlink port PF/VF init/cleanup calls out of devlink_port_register/unregister()
net/mlx5: Push out SF devlink port init and cleanup code to separate helpers
net/mlx5: Rework devlink port alloc/free into init/cleanup
====================
Link: https://lore.kernel.org/all/20230823051012.162483-1-saeed@kernel.org/
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
netfilter updates for net
This PR contains nf_tables updates for your *net* tree.
First patch fixes table validation, I broke this in 6.4 when tracking
validation state per table, reported by Pablo, fixup from myself.
Second patch makes sure objects waiting for memory release have been
released, this was broken in 6.1, patch from Pablo Neira Ayuso.
Patch three is a fix-for-fix from previous PR: In case a transaction
gets aborted, gc sequence counter needs to be incremented so pending
gc requests are invalidated, from Pablo.
Same for patch 4: gc list needs to use gc list lock, not destroy lock,
also from Pablo.
Patch 5 fixes a UaF in a set backend, but this should only occur when
failslab is enabled for GFP_KERNEL allocations, broken since feature
was added in 5.6, from myself.
Patch 6 fixes a double-free bug that was also added via previous PR:
We must not schedule gc work if the previous batch is still queued.
netfilter pull request 2023-08-23
* tag 'nf-23-08-23' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: defer gc run if previous batch is still pending
netfilter: nf_tables: fix out of memory error handling
netfilter: nf_tables: use correct lock to protect gc_list
netfilter: nf_tables: GC transaction race with abort path
netfilter: nf_tables: flush pending destroy work before netlink notifier
netfilter: nf_tables: validate all pending tables
====================
Link: https://lore.kernel.org/r/20230823152711.15279-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Hangbin Liu says:
====================
fix macvlan over alb bond support
Currently, the macvlan over alb bond is broken after commit
14af9963ba1e ("bonding: Support macvlans on top of tlb/rlb mode bonds").
Fix this and add relate tests.
====================
Link: https://lore.kernel.org/r/20230823071907.3027782-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add a macvlan over bonding test with mode active-backup, balance-tlb
and balance-alb.
]# ./bond_macvlan.sh
TEST: active-backup: IPv4: client->server [ OK ]
TEST: active-backup: IPv6: client->server [ OK ]
TEST: active-backup: IPv4: client->macvlan_1 [ OK ]
TEST: active-backup: IPv6: client->macvlan_1 [ OK ]
TEST: active-backup: IPv4: client->macvlan_2 [ OK ]
TEST: active-backup: IPv6: client->macvlan_2 [ OK ]
TEST: active-backup: IPv4: macvlan_1->macvlan_2 [ OK ]
TEST: active-backup: IPv6: macvlan_1->macvlan_2 [ OK ]
TEST: active-backup: IPv4: server->client [ OK ]
TEST: active-backup: IPv6: server->client [ OK ]
TEST: active-backup: IPv4: macvlan_1->client [ OK ]
TEST: active-backup: IPv6: macvlan_1->client [ OK ]
TEST: active-backup: IPv4: macvlan_2->client [ OK ]
TEST: active-backup: IPv6: macvlan_2->client [ OK ]
TEST: active-backup: IPv4: macvlan_2->macvlan_2 [ OK ]
TEST: active-backup: IPv6: macvlan_2->macvlan_2 [ OK ]
[...]
TEST: balance-alb: IPv4: client->server [ OK ]
TEST: balance-alb: IPv6: client->server [ OK ]
TEST: balance-alb: IPv4: client->macvlan_1 [ OK ]
TEST: balance-alb: IPv6: client->macvlan_1 [ OK ]
TEST: balance-alb: IPv4: client->macvlan_2 [ OK ]
TEST: balance-alb: IPv6: client->macvlan_2 [ OK ]
TEST: balance-alb: IPv4: macvlan_1->macvlan_2 [ OK ]
TEST: balance-alb: IPv6: macvlan_1->macvlan_2 [ OK ]
TEST: balance-alb: IPv4: server->client [ OK ]
TEST: balance-alb: IPv6: server->client [ OK ]
TEST: balance-alb: IPv4: macvlan_1->client [ OK ]
TEST: balance-alb: IPv6: macvlan_1->client [ OK ]
TEST: balance-alb: IPv4: macvlan_2->client [ OK ]
TEST: balance-alb: IPv6: macvlan_2->client [ OK ]
TEST: balance-alb: IPv4: macvlan_2->macvlan_2 [ OK ]
TEST: balance-alb: IPv6: macvlan_2->macvlan_2 [ OK ]
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add a new testing topo bond_topo_2d1c.sh which is used more commonly.
Make bond_topo_3d1c.sh just source bond_topo_2d1c.sh and add the
extra link.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The commit 14af9963ba1e ("bonding: Support macvlans on top of tlb/rlb mode
bonds") aims to enable the use of macvlans on top of rlb bond mode. However,
the current rlb bond mode only handles ARP packets to update remote neighbor
entries. This causes an issue when a macvlan is on top of the bond, and
remote devices send packets to the macvlan using the bond's MAC address
as the destination. After delivering the packets to the macvlan, the macvlan
will rejects them as the MAC address is incorrect. Consequently, this commit
makes macvlan over bond non-functional.
To address this problem, one potential solution is to check for the presence
of a macvlan port on the bond device using netif_is_macvlan_port(bond->dev)
and return NULL in the rlb_arp_xmit() function. However, this approach
doesn't fully resolve the situation when a VLAN exists between the bond and
macvlan.
So let's just do a partial revert for commit 14af9963ba1e in rlb_arp_xmit().
As the comment said, Don't modify or load balance ARPs that do not originate
locally.
Fixes: 14af9963ba1e ("bonding: Support macvlans on top of tlb/rlb mode bonds")
Reported-by: susan.zheng@veritas.com
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2117816
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Negative ifindexes are illegal, but the kernel does not validate the
ifindex in the ancillary header of RTM_NEWLINK messages, resulting in
the kernel generating a warning [1] when such an ifindex is specified.
Fix by rejecting negative ifindexes.
[1]
WARNING: CPU: 0 PID: 5031 at net/core/dev.c:9593 dev_index_reserve+0x1a2/0x1c0 net/core/dev.c:9593
[...]
Call Trace:
<TASK>
register_netdevice+0x69a/0x1490 net/core/dev.c:10081
br_dev_newlink+0x27/0x110 net/bridge/br_netlink.c:1552
rtnl_newlink_create net/core/rtnetlink.c:3471 [inline]
__rtnl_newlink+0x115e/0x18c0 net/core/rtnetlink.c:3688
rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3701
rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6427
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:728 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:751
____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
__sys_sendmsg+0x117/0x1e0 net/socket.c:2621
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Fixes: 38f7b870d4a6 ("[RTNETLINK]: Link creation API")
Reported-by: syzbot+5ba06978f34abb058571@syzkaller.appspotmail.com
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230823064348.2252280-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Daniel Golle says:
====================
net: ethernet: mtk_eth_soc: improve support for MT7988
This series fixes and completes commit 445eb6448ed3b ("net: ethernet:
mtk_eth_soc: add basic support for MT7988 SoC") and also adds support
for using the in-SoC SRAM to previous MT7986 and MT7981 SoCs.
====================
Link: https://lore.kernel.org/r/cover.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Systems having 4 GiB of RAM and more require DMA addressing beyond the
current 32-bit limit. Starting from MT7988 the hardware now supports
36-bit DMA addressing, let's use that new capability in the driver to
avoid running into swiotlb on systems with 4 GiB of RAM or more.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/95b919c98876c9e49761e44662e7c937479eecb8.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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MT7981, MT7986 and MT7988 come with in-SoC SRAM dedicated for Ethernet
DMA rings. Support using the SRAM without breaking existing device tree
bindings, ie. only new SoC starting from MT7988 will have the SRAM
declared as additional resource in device tree. For MT7981 and MT7986
an offset on top of the main I/O base is used.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/e45e0f230c63ad58869e8fe35b95a2fb8925b625.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add bits needed to reset the frame engine on MT7988.
Fixes: 445eb6448ed3 ("net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/89b6c38380e7a3800c1362aa7575600717bc7543.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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More register macros need to be adjusted for the 3rd GMAC on MT7988.
Account for added bit in SYSCFG0_SGMII_MASK.
Fixes: 445eb6448ed3 ("net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/1c8da012e2ca80939906d85f314138c552139f0f.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As we already added the exception tracing for XDP_TX, I think it is
necessary to add the exception tracing for other XDP actions, such
as XDP_REDIRECT, XDP_ABORTED and unknown error actions.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230822065255.606739-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use the standard error pointer macro to shorten the code and simplify.
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Link: https://lore.kernel.org/r/20230822021455.205101-2-liaoyu15@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Make an existing ACPI IRQ override quirk for PCSpecialist Elimina Pro
16 M work as intended (Hans de Goede)"
* tag 'acpi-6.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: resource: Fix IRQ override quirk for PCSpecialist Elimina Pro 16 M
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Final set of three small fixes for 6.5"
* tag 'platform-drivers-x86-v6.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifications
platform/x86: ideapad-laptop: Add support for new hotkeys found on ThinkBook 14s Yoga ITL
platform/x86: lenovo-ymc: Add Lenovo Yoga 7 14ACN6 to ec_trigger_quirk_dmi_table
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notifications
rshim console does not show all entries of dmesg.
Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.
Signed-off-by: Shih-Yi Chen <shihyic@nvidia.com>
Reviewed-by: Liming Sung <limings@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20230821150627.26075-1-shihyic@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Don't queue more gc work, else we may queue the same elements multiple
times.
If an element is flagged as dead, this can mean that either the previous
gc request was invalidated/discarded by a transaction or that the previous
request is still pending in the system work queue.
The latter will happen if the gc interval is set to a very low value,
e.g. 1ms, and system work queue is backlogged.
The sets refcount is 1 if no previous gc requeusts are queued, so add
a helper for this and skip gc run if old requests are pending.
Add a helper for this and skip the gc run in this case.
Fixes: f6c383b8c31a ("netfilter: nf_tables: adapt set backend to use GC transaction API")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Several instances of pipapo_resize() don't propagate allocation failures,
this causes a crash when fault injection is enabled for gfp_kernel slabs.
Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
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Use nf_tables_gc_list_lock spinlock, not nf_tables_destroy_list_lock to
protect the gc list.
Fixes: 5f68718b34a5 ("netfilter: nf_tables: GC transaction API to avoid race with control plane")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Abort path is missing a synchronization point with GC transactions. Add
GC sequence number hence any GC transaction losing race will be
discarded.
Fixes: 5f68718b34a5 ("netfilter: nf_tables: GC transaction API to avoid race with control plane")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Destroy work waits for the RCU grace period then it releases the objects
with no mutex held. All releases objects follow this path for
transactions, therefore, order is guaranteed and references to top-level
objects in the hierarchy remain valid.
However, netlink notifier might interfer with pending destroy work.
rcu_barrier() is not correct because objects are not release via RCU
callback. Flush destroy work before releasing objects from netlink
notifier path.
Fixes: d4bc8271db21 ("netfilter: nf_tables: netlink notifier might race to release objects")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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We have to validate all tables in the transaction that are in
VALIDATE_DO state, the blamed commit below did not move the break
statement to its right location so we only validate one table.
Moreover, we can't init table->validate to _SKIP when a table object
is allocated.
If we do, then if a transcaction creates a new table and then
fails the transaction, nfnetlink will loop and nft will hang until
user cancels the command.
Add back the pernet state as a place to stash the last state encountered.
This is either _DO (we hit an error during commit validation) or _SKIP
(transaction passed all checks).
Fixes: 00c320f9b755 ("netfilter: nf_tables: make validation state per table")
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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When building for power4, newer binutils don't recognise the "dcbfl"
extended mnemonic.
dcbfl RA, RB is equivalent to dcbf RA, RB, 1.
Switch to "dcbf" to avoid the build error.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add check for pf->vf not being NULL before dereferencing
pf->vf[vsi->vf_id] in updating VSI filter sync.
Add a similar check before dereferencing !pf->vf[vsi->vf_id].trusted
in the condition for clearing promisc mode bit.
Fixes: c87c938f62d8 ("i40e: Add VF VLAN pruning")
Signed-off-by: Andrii Staikov <andrii.staikov@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All callers of build_skb() (*) in bnxt are in NAPI context.
The budget checking is somewhat convoluted because in the shared
completion queue cases Rx packets are discarded by netpoll
by forcing an error (E). But that happens before skb allocation.
Only a call chain starting at __bnxt_poll_work() can lead to
an skb allocation and it checks budget (b).
* bnxt_rx_multi_page_skb
* bnxt_rx_skb
` bp->rx_skb_func
* bnxt_tpa_end
` bnxt_rx_pkt
E bnxt_force_rx_discard
E bnxt_poll_nitroa0
b __bnxt_poll_work
Use napi_build_skb() to take advantage of the skb cache.
In iperf tests with HW-GRO enabled it barely makes a difference
but in cases where HW-GRO is not as effective (or disabled) it
can give even a >10% boost (20.7Gbps -> 23.1Gbps).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When replacing an existing root qdisc, with one that is of the same kind, the
request boils down to essentially a parameterization change i.e not one that
requires allocation and grafting of a new qdisc. syzbot was able to create a
scenario which resulted in a taprio qdisc replacing an existing taprio qdisc
with a combination of NLM_F_CREATE, NLM_F_REPLACE and NLM_F_EXCL leading to
create and graft scenario.
The fix ensures that only when the qdisc kinds are different that we should
allow a create and graft, otherwise it goes into the "change" codepath.
While at it, fix the code and comments to improve readability.
While syzbot was able to create the issue, it did not zone on the root cause.
Analysis from Vladimir Oltean <vladimir.oltean@nxp.com> helped narrow it down.
v1->V2 changes:
- remove "inline" function definition (Vladmir)
- remove extrenous braces in branches (Vladmir)
- change inline function names (Pedro)
- Run tdc tests (Victor)
v2->v3 changes:
- dont break else/if (Simon)
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot+a3618a167af2021433cd@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/20230816225759.g25x76kmgzya2gei@skbuf/T/
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove debug logs in port vlan management, since there are already multiple
tracepoints defined for those operations in DSA
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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BPF programs that run on connect can rewrite the connect address. For
the connect system call this isn't a problem, because a copy of the address
is made when it is moved into kernel space. However, kernel_connect
simply passes through the address it is given, so the caller may observe
its address value unexpectedly change.
A practical example where this is problematic is where NFS is combined
with a system such as Cilium which implements BPF-based load balancing.
A common pattern in software-defined storage systems is to have an NFS
mount that connects to a persistent virtual IP which in turn maps to an
ephemeral server IP. This is usually done to achieve high availability:
if your server goes down you can quickly spin up a replacement and remap
the virtual IP to that endpoint. With BPF-based load balancing, mounts
will forget the virtual IP address when the address rewrite occurs
because a pointer to the only copy of that address is passed down the
stack. Server failover then breaks, because clients have forgotten the
virtual IP address. Reconnects fail and mounts remain broken. This patch
was tested by setting up a scenario like this and ensuring that NFS
reconnects worked after applying the patch.
Signed-off-by: Jordan Rife <jrife@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The virtio_net driver currently deals with different versions and types
of virtio net headers, such as virtio_net_hdr_mrg_rxbuf,
virtio_net_hdr_v1_hash, etc. Due to these variations, the code relies
on multiple type casts to convert memory between different structures,
potentially leading to bugs when there are changes in these structures.
Introduces the "struct skb_vnet_common_hdr" as a unifying header
structure using a union. With this approach, various virtio net header
structures can be converted by accessing different members of this
structure, thus eliminating the need for type casting and reducing the
risk of potential bugs.
For example following code:
static struct sk_buff *page_to_skb(struct virtnet_info *vi,
struct receive_queue *rq,
struct page *page, unsigned int offset,
unsigned int len, unsigned int truesize,
unsigned int headroom)
{
[...]
struct virtio_net_hdr_mrg_rxbuf *hdr;
[...]
hdr_len = vi->hdr_len;
[...]
ok:
hdr = skb_vnet_hdr(skb);
memcpy(hdr, hdr_p, hdr_len);
[...]
}
When VIRTIO_NET_F_HASH_REPORT feature is enabled, hdr_len = 20
But the sizeof(*hdr) is 12,
memcpy(hdr, hdr_p, hdr_len); will copy 20 bytes to the hdr,
which make a potential risk of bug. And this risk can be avoided by
introducing struct skb_vnet_common_hdr.
Change log
v1->v2
feedback from Willem de Bruijn <willemdebruijn.kernel@gmail.com>
feedback from Simon Horman <horms@kernel.org>
1. change to use net-next tree.
2. move skb_vnet_common_hdr inside kernel file instead of the UAPI header.
v2->v3
feedback from Willem de Bruijn <willemdebruijn.kernel@gmail.com>
1. fix typo in commit message.
2. add original struct virtio_net_hdr into union
3. remove virtio_net_hdr_mrg_rxbuf variable in receive_buf;
Signed-off-by: Feng Liu <feliu@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert list_for_each() to list_for_each_entry() where applicable.
No functional changed.
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Petr Pavlu says:
====================
Convert mlx4 to use auxiliary bus
This series converts the mlx4 drivers to use auxiliary bus, similarly to
how mlx5 was converted [1]. The first 6 patches are preparatory changes,
the remaining 4 are the final conversion.
Initial motivation for this change was to address a problem related to
loading mlx4_en/mlx4_ib by mlx4_core using request_module_nowait(). When
doing such a load in initrd, the operation is asynchronous to any init
control and can get unexpectedly affected/interrupted by an eventual
root switch. Using an auxiliary bus leaves these module loads to udevd
which better integrates with systemd processing. [2]
General benefit is to get rid of custom interface logic and instead use
a common facility available for this task. An obvious risk is that some
new bug is introduced by the conversion.
Leon Romanovsky was kind enough to check for me that the series passes
their verification tests.
Changes since v2 [3]:
* Use 'void *' as the event param of mlx4_dispatch_event().
Changes since v1 [4]:
* Fix a missing definition of the err variable in mlx4_en_add().
* Remove not needed comments about the event type in mlx4_en_event()
and mlx4_ib_event().
[1] https://lore.kernel.org/netdev/20201101201542.2027568-1-leon@kernel.org/
[2] https://lore.kernel.org/netdev/0a361ac2-c6bd-2b18-4841-b1b991f0635e@suse.com/
[3] https://lore.kernel.org/netdev/20230813145127.10653-1-petr.pavlu@suse.com/
[4] https://lore.kernel.org/netdev/20230804150527.6117-1-petr.pavlu@suse.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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After the conversion to use the auxiliary bus, the custom device
management is not needed anymore and can be deleted.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the auxiliary bus to perform device management of the infiniband
part of the mlx4 driver.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the auxiliary bus to perform device management of the ethernet part
of the mlx4 driver.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add an auxiliary virtual bus to model the mlx4 driver structure. The
code is added along the current custom device management logic.
Subsequent patches switch mlx4_en and mlx4_ib to the auxiliary bus and
the old interface is then removed.
Structure mlx4_priv gains a new adev dynamic array to keep track of its
auxiliary devices. Access to the array is protected by the global
mlx4_intf mutex.
Functions mlx4_register_device() and mlx4_unregister_device() are
updated to expose auxiliary devices on the bus in order to load mlx4_en
and/or mlx4_ib. Functions mlx4_register_auxiliary_driver() and
mlx4_unregister_auxiliary_driver() are added to substitute
mlx4_register_interface() and mlx4_unregister_interface(), respectively.
Function mlx4_do_bond() is adjusted to walk over the adev array and
re-adds a specific auxiliary device if its driver sets the
MLX4_INTFF_BONDING flag.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mlx4_core driver has a logic that allows a sub-driver to set the
MLX4_INTFF_BONDING flag which then causes that function mlx4_do_bond()
asks the sub-driver to fully re-probe a device when its bonding
configuration changes.
Performing this operation is disallowed in mlx4_register_interface()
when it is detected that any mlx4 device is multifunction (SRIOV). The
code then resets MLX4_INTFF_BONDING in the driver flags.
Move this check directly into mlx4_do_bond(). It provides a better
separation as mlx4_core no longer directly modifies the sub-driver flags
and it will allow to get rid of explicitly keeping track of all mlx4
devices by the intf.c code when it is switched to an auxiliary bus.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Function mlx4_en_queue_bond_work() is used in mlx4_en to start a bond
reconfiguration. It gathers data about a new port map setting, takes
a reference on the netdev that triggered the change and queues a work
object on mlx4_en_priv.mdev.workqueue to perform the operation. The
scheduled work is mlx4_en_bond_work() which calls
mlx4_bond()/mlx4_unbond() and consequently mlx4_do_bond().
At the same time, function mlx4_change_port_types() in mlx4_core might
be invoked to change the port type configuration. As part of its logic,
it re-registers the whole device by calling mlx4_unregister_device(),
followed by mlx4_register_device().
The two operations can result in concurrent access to the data about
currently active interfaces on the device.
Functions mlx4_register_device() and mlx4_unregister_device() lock the
intf_mutex to gain exclusive access to this data. The current
implementation of mlx4_do_bond() doesn't do that which could result in
an unexpected behavior. An updated version of mlx4_do_bond() for use
with an auxiliary bus goes and locks the intf_mutex when accessing a new
auxiliary device array.
However, doing so can then result in the following deadlock:
* A two-port mlx4 device is configured as an Ethernet bond.
* One of the ports is changed from eth to ib, for instance, by writing
into a mlx4_port<x> sysfs attribute file.
* mlx4_change_port_types() is called to update port types. It invokes
mlx4_unregister_device() to unregister the device which locks the
intf_mutex and starts removing all associated interfaces.
* Function mlx4_en_remove() gets invoked and starts destroying its first
netdev. This triggers mlx4_en_netdev_event() which recognizes that the
configured bond is broken. It runs mlx4_en_queue_bond_work() which
takes a reference on the netdev. Removing the netdev now cannot
proceed until the work is completed.
* Work function mlx4_en_bond_work() gets scheduled. It calls
mlx4_unbond() -> mlx4_do_bond(). The latter function tries to lock the
intf_mutex but that is not possible because it is held already by
mlx4_unregister_device().
This particular case could be possibly solved by unregistering the
mlx4_en_netdev_event() notifier in mlx4_en_remove() earlier, but it
seems better to decouple mlx4_en more and break this reference order.
Avoid then this scenario by recognizing that the bond reconfiguration
operates only on a mlx4_dev. The logic to queue and execute the bond
work can be moved into the mlx4_core driver. Only a reference on the
respective mlx4_dev object is needed to be taken during the work's
lifetime. This removes a call from mlx4_en that can directly result in
needing to lock the intf_mutex, it remains a privilege of the core
driver.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mlx4_interface.activate callback was introduced in commit
79857cd31fe7 ("net/mlx4: Postpone the registration of net_device"). It
dealt with a situation when a netdev notifier received a NETDEV_REGISTER
event for a new net_device created by mlx4_en but the same device was
not yet visible to mlx4_get_protocol_dev(). The callback can be removed
now that mlx4_get_protocol_dev() is gone.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use a notifier to implement mlx4_dispatch_event() in preparation to
switch mlx4_en and mlx4_ib to be an auxiliary device.
A problem is that if the mlx4_interface.event callback was replaced with
something as mlx4_adrv.event then the implementation of
mlx4_dispatch_event() would need to acquire a lock on a given device
before executing this callback. That is necessary because otherwise
there is no guarantee that the associated driver cannot get unbound when
the callback is running. However, taking this lock is not possible
because mlx4_dispatch_event() can be invoked from the hardirq context.
Using an atomic notifier allows the driver to accurately record when it
wants to receive these events and solves this problem.
A handler registration is done by both mlx4_en and mlx4_ib at the end of
their mlx4_interface.add callback. This matches the current situation
when mlx4_add_device() would enable events for a given device
immediately after this callback, by adding the device on the
mlx4_priv.list.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Function mlx4_dispatch_event() takes an 'unsigned long' as its event
parameter. The actual value is none (MLX4_DEV_EVENT_CATASTROPHIC_ERROR),
a pointer to mlx4_eqe (MLX4_DEV_EVENT_PORT_MGMT_CHANGE), or a 32-bit
integer (remaining events).
In preparation to switch mlx4_en and mlx4_ib to be an auxiliary device,
the mlx4_interface.event callback is replaced with a notifier and
function mlx4_dispatch_event() gets updated to invoke
atomic_notifier_call_chain(). This requires forwarding the input 'param'
value from the former function to the latter. A problem is that the
notifier call takes 'void *' as its 'param' value, compared to
'unsigned long' used by mlx4_dispatch_event(). Re-passing the value
would need either punning it to 'void *' or passing down the address of
the input 'param'. Both approaches create a number of unnecessary casts.
Change instead the input 'param' of mlx4_dispatch_event() from
'unsigned long' to 'void *'. A mlx4_eqe pointer can be passed directly,
callers using an int value are adjusted to pass its address.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Rename the mlx4_en_dev.nb notifier_block member to netdev_nb in
preparation to add a mlx4 core notifier_block.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the mlx4 driver interface by removing mlx4_get_protocol_dev()
and the associated mlx4_interface.get_dev callbacks. This is done in
preparation to use an auxiliary bus to model the mlx4 driver structure.
The change is motivated by the following situation:
* The mlx4_en interface is being initialized by mlx4_en_add() and
mlx4_en_activate().
* The latter activate function calls mlx4_en_init_netdev() ->
register_netdev() to register a new net_device.
* A netdev event NETDEV_REGISTER is raised for the device.
* The netdev notififier mlx4_ib_netdev_event() is called and it invokes
mlx4_ib_scan_netdevs() -> mlx4_get_protocol_dev() ->
mlx4_en_get_netdev() [via mlx4_interface.get_dev].
This chain creates a problem when mlx4_en gets switched to be an
auxiliary driver. It contains two device calls which would both need to
take a respective device lock.
Avoid this situation by updating mlx4_ib_scan_netdevs() to no longer
call mlx4_get_protocol_dev() but instead to utilize the information
passed in net_device.parent and net_device.dev_port. This data is
sufficient to determine that an updated port is one that the mlx4_ib
driver should take care of and to keep mlx4_ib_dev.iboe.netdevs up to
date.
Following that, update mlx4_ib_get_netdev() to also not call
mlx4_get_protocol_dev() and instead scan all current netdevs to find
find a matching one. Note that mlx4_ib_get_netdev() is called early from
ib_register_device() and cannot use data tracked in
mlx4_ib_dev.iboe.netdevs which is not at that point yet set.
Finally, remove function mlx4_get_protocol_dev() and the
mlx4_interface.get_dev callbacks (only mlx4_en_get_netdev()) as they
became unused.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 8cd160a29415 ("qede: convert to new udp_tunnel_nic infra")
removed qede_udp_tunnel_{add,del}() but not the declarations.
Commit 0ebcebbef1cc ("qed: Read device port count from the shmem")
removed qed_device_num_engines() but not its declaration.
Commit 1e128c81290a ("qed: Add support for hardware offloaded FCoE.")
declared but never implemented qed_fcoe_set_pf_params().
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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