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[ Upstream commit 68be930249d051fd54d3d99156b3dcadcb2a1f9b ]
BUG: unable to handle kernel paging request at ffffffffa01c5430
PGD 3270067 P4D 3270067 PUD 3271063 PMD 230bc5067 PTE 0
Oops: 0000 [#1
CPU: 0 PID: 6159 Comm: modprobe Not tainted 5.1.0+ #33
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
RIP: 0010:raw_notifier_chain_register+0x16/0x40
Code: 63 f8 66 90 e9 5d ff ff ff 90 90 90 90 90 90 90 90 90 90 90 55 48 8b 07 48 89 e5 48 85 c0 74 1c 8b 56 10 3b 50 10 7e 07 eb 12 <39> 50 10 7c 0d 48 8d 78 08 48 8b 40 08 48 85 c0 75 ee 48 89 46 08
RSP: 0018:ffffc90001c33c08 EFLAGS: 00010282
RAX: ffffffffa01c5420 RBX: ffffffffa01db420 RCX: 4fcef45928070a8b
RDX: 0000000000000000 RSI: ffffffffa01db420 RDI: ffffffffa01b0068
RBP: ffffc90001c33c08 R08: 000000003e0a33d0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000094443661 R12: ffff88822c320700
R13: ffff88823109be80 R14: 0000000000000000 R15: ffffc90001c33e78
FS: 00007fab8bd08540(0000) GS:ffff888237a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffa01c5430 CR3: 00000002297ea000 CR4: 00000000000006f0
Call Trace:
register_netdevice_notifier+0x43/0x250
? 0xffffffffa01e0000
dsa_slave_register_notifier+0x13/0x70 [dsa_core
? 0xffffffffa01e0000
dsa_init_module+0x2e/0x1000 [dsa_core
do_one_initcall+0x6c/0x3cc
? do_init_module+0x22/0x1f1
? rcu_read_lock_sched_held+0x97/0xb0
? kmem_cache_alloc_trace+0x325/0x3b0
do_init_module+0x5b/0x1f1
load_module+0x1db1/0x2690
? m_show+0x1d0/0x1d0
__do_sys_finit_module+0xc5/0xd0
__x64_sys_finit_module+0x15/0x20
do_syscall_64+0x6b/0x1d0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Cleanup allocated resourses if there are errors,
otherwise it will trgger memleak.
Fixes: c9eb3e0f8701 ("net: dsa: Add support for learning FDB through notification")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
./net/dsa/port.c:294:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 284, but without a corresponding object release within this function.
./net/dsa/dsa2.c:627:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 618, but without a corresponding object release within this function.
./net/dsa/dsa2.c:630:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 618, but without a corresponding object release within this function.
./net/dsa/dsa2.c:636:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 618, but without a corresponding object release within this function.
./net/dsa/dsa2.c:639:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 618, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a DSA port is added to a bridge and brought up, the resulting STP
state programmed into the hardware depends on the order that these
operations are performed. However, the Linux bridge code believes that
the port is in disabled mode.
If the DSA port is first added to a bridge and then brought up, it will
be in blocking mode. If it is brought up and then added to the bridge,
it will be in disabled mode.
This difference is caused by DSA always setting the STP mode in
dsa_port_enable() whether or not this port is part of a bridge. Since
bridge always sets the STP state when the port is added, brought up or
taken down, it is unnecessary for us to manipulate the STP state.
Apparently, this code was copied from Rocker, and the very next day a
similar fix for Rocker was merged but was not propagated to DSA. See
e47172ab7e41 ("rocker: put port in FORWADING state after leaving bridge")
Fixes: b73adef67765 ("net: dsa: integrate with SWITCHDEV for HW bridging")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This function can't succeed if dp->pl is NULL. It will Oops inside the
call to return phylink_ethtool_get_eee(dp->pl, e);
Fixes: 1be52e97ed3e ("dsa: slave: eee: Allow ports to use phylink")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Creating a macvtap on a DSA-backed interface results in the following
splat when lockdep is enabled:
[ 19.638080] IPv6: ADDRCONF(NETDEV_CHANGE): lan0: link becomes ready
[ 23.041198] device lan0 entered promiscuous mode
[ 23.043445] device eth0 entered promiscuous mode
[ 23.049255]
[ 23.049557] ============================================
[ 23.055021] WARNING: possible recursive locking detected
[ 23.060490] 5.0.0-rc3-00013-g56c857a1b8d3 #118 Not tainted
[ 23.066132] --------------------------------------------
[ 23.071598] ip/2861 is trying to acquire lock:
[ 23.076171] 00000000f61990cb (_xmit_ETHER){+...}, at: dev_set_rx_mode+0x1c/0x38
[ 23.083693]
[ 23.083693] but task is already holding lock:
[ 23.089696] 00000000ecf0c3b4 (_xmit_ETHER){+...}, at: dev_uc_add+0x24/0x70
[ 23.096774]
[ 23.096774] other info that might help us debug this:
[ 23.103494] Possible unsafe locking scenario:
[ 23.103494]
[ 23.109584] CPU0
[ 23.112093] ----
[ 23.114601] lock(_xmit_ETHER);
[ 23.117917] lock(_xmit_ETHER);
[ 23.121233]
[ 23.121233] *** DEADLOCK ***
[ 23.121233]
[ 23.127325] May be due to missing lock nesting notation
[ 23.127325]
[ 23.134315] 2 locks held by ip/2861:
[ 23.137987] #0: 000000003b766c72 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x338/0x4e0
[ 23.146231] #1: 00000000ecf0c3b4 (_xmit_ETHER){+...}, at: dev_uc_add+0x24/0x70
[ 23.153757]
[ 23.153757] stack backtrace:
[ 23.158243] CPU: 0 PID: 2861 Comm: ip Not tainted 5.0.0-rc3-00013-g56c857a1b8d3 #118
[ 23.166212] Hardware name: Globalscale Marvell ESPRESSOBin Board (DT)
[ 23.172843] Call trace:
[ 23.175358] dump_backtrace+0x0/0x188
[ 23.179116] show_stack+0x14/0x20
[ 23.182524] dump_stack+0xb4/0xec
[ 23.185928] __lock_acquire+0x123c/0x1860
[ 23.190048] lock_acquire+0xc8/0x248
[ 23.193724] _raw_spin_lock_bh+0x40/0x58
[ 23.197755] dev_set_rx_mode+0x1c/0x38
[ 23.201607] dev_set_promiscuity+0x3c/0x50
[ 23.205820] dsa_slave_change_rx_flags+0x5c/0x70
[ 23.210567] __dev_set_promiscuity+0x148/0x1e0
[ 23.215136] __dev_set_rx_mode+0x74/0x98
[ 23.219167] dev_uc_add+0x54/0x70
[ 23.222575] macvlan_open+0x170/0x1d0
[ 23.226336] __dev_open+0xe0/0x160
[ 23.229830] __dev_change_flags+0x16c/0x1b8
[ 23.234132] dev_change_flags+0x20/0x60
[ 23.238074] do_setlink+0x2d0/0xc50
[ 23.241658] __rtnl_newlink+0x5f8/0x6e8
[ 23.245601] rtnl_newlink+0x50/0x78
[ 23.249184] rtnetlink_rcv_msg+0x360/0x4e0
[ 23.253397] netlink_rcv_skb+0xe8/0x130
[ 23.257338] rtnetlink_rcv+0x14/0x20
[ 23.261012] netlink_unicast+0x190/0x210
[ 23.265043] netlink_sendmsg+0x288/0x350
[ 23.269075] sock_sendmsg+0x18/0x30
[ 23.272659] ___sys_sendmsg+0x29c/0x2c8
[ 23.276602] __sys_sendmsg+0x60/0xb8
[ 23.280276] __arm64_sys_sendmsg+0x1c/0x28
[ 23.284488] el0_svc_common+0xd8/0x138
[ 23.288340] el0_svc_handler+0x24/0x80
[ 23.292192] el0_svc+0x8/0xc
This looks fairly harmless (no actual deadlock occurs), and is
fixed in a similar way to c6894dec8ea9 ("bridge: fix lockdep
addr_list_lock false positive splat") by putting the addr_list_lock
in its own lockdep class.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The unbalance of master's promiscuity or allmulti will happen after ifdown
and ifup a slave interface which is in a bridge.
When we ifdown a slave interface , both the 'dsa_slave_close' and
'dsa_slave_change_rx_flags' will clear the master's flags. The flags
of master will be decrease twice.
In the other hand, if we ifup the slave interface again, since the
slave's flags were cleared the 'dsa_slave_open' won't set the master's
flag, only 'dsa_slave_change_rx_flags' that triggered by 'br_add_if'
will set the master's flags. The flags of master is increase once.
Only propagating flag changes when a slave interface is up makes
sure this does not happen. The 'vlan_dev_change_rx_flags' had the
same problem and was fixed, and changes here follows that fix.
Fixes: 91da11f870f0 ("net: Distributed Switch Architecture protocol support")
Signed-off-by: Rundong Ge <rdong.ge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case the destination address is link local, add override bit into the
switch tag to let such a packet through the switch even if the port is
blocked.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Factor out common code from the tag_ksz , so that the code can be used
with other KSZ family switches which use differenly sized tags.
Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename the tag Kconfig option and related macros in preparation for
addition of new KSZ family switches with different tag formats.
Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Several conflicts, seemingly all over the place.
I used Stephen Rothwell's sample resolutions for many of these, if not
just to double check my own work, so definitely the credit largely
goes to him.
The NFP conflict consisted of a bug fix (moving operations
past the rhashtable operation) while chaning the initial
argument in the function call in the moved code.
The net/dsa/master.c conflict had to do with a bug fix intermixing of
making dsa_master_set_mtu() static with the fixing of the tagging
attribute location.
cls_flower had a conflict because the dup reject fix from Or
overlapped with the addition of port range classifiction.
__set_phy_supported()'s conflict was relatively easy to resolve
because Andrew fixed it in both trees, so it was just a matter
of taking the net-next copy. Or at least I think it was :-)
Joe Stringer's fix to the handling of netns id 0 in bpf_sk_lookup()
intermixed with changes on how the sdif and caller_net are calculated
in these code paths in net-next.
The remaining BPF conflicts were largely about the addition of the
__bpf_md_ptr stuff in 'net' overlapping with adjustments and additions
to the relevant data structure where the MD pointer macros are used.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the missing static keyword.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A previous change tries to set the MTU on the master device to take
into account the DSA overheads. This patch tries to reset the master
device back to the default MTU.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DSA tagging of frames sent over the master interface to the switch
increases the size of the frame. Such frames can then be bigger than
the normal MTU of the master interface, and it may drop them. Use the
overhead information from the tagger to set the MTU of the master
device to include this overhead.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Each DSA tag protocol needs to add additional headers to the Ethernet
frame in order to direct it towards a specific switch egress port. It
must also remove the head from a frame received from a
switch. Indicate the maximum size of these headers in the tag protocol
ops structure, so the core can take these overheads into account.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While introducing the DSA tagging protocol attribute, it was added to the DSA
slave network devices, but those actually see untagged traffic (that is their
whole purpose). Correct this mistake by putting the tagging sysfs attribute
under the DSA master network device where this is the information that we need.
While at it, also correct the sysfs documentation mistake that missed the
"dsa/" directory component of the attribute.
Fixes: 98cdb4807123 ("net: dsa: Expose tagging protocol to user-space")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to an explicit check in rocker_world_port_obj_vlan_add(),
dsa_slave_switchdev_event() resp. port_switchdev_event(), VLAN objects
that are added to a device that is not a front-panel port device are
ignored. Therefore this check is immaterial.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Drop switchdev_ops.switchdev_port_obj_add and _del. Drop the uses of
this field from all clients, which were migrated to use switchdev
notification in the previous patches.
Add a new function switchdev_port_obj_notify() that sends the switchdev
notifications SWITCHDEV_PORT_OBJ_ADD and _DEL.
Update switchdev_port_obj_del_now() to dispatch to this new function.
Drop __switchdev_port_obj_add() and update switchdev_port_obj_add()
likewise.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Following patches will change the way of distributing port object
changes from a switchdev operation to a switchdev notifier. The
switchdev code currently recursively descends through layers of lower
devices, eventually calling the op on a front-panel port device. The
notifier will instead be sent referencing the bridge port device, which
may be a stacking device that's one of front-panel ports uppers, or a
completely unrelated device.
DSA currently doesn't support any other uppers than bridge.
SWITCHDEV_OBJ_ID_HOST_MDB and _PORT_MDB objects are always notified on
the bridge port device. Thus the only case that a stacked device could
be validly referenced by port object notifications are bridge
notifications for VLAN objects added to the bridge itself. But the
driver explicitly rejects such notifications in dsa_port_vlan_add(). It
is therefore safe to assume that the only interesting case is that the
notification is on a front-panel port netdevice. Therefore keep the
filtering by dsa_slave_dev_check() in place.
To handle SWITCHDEV_PORT_OBJ_ADD and _DEL, subscribe to the blocking
notifier chain. Dispatch to rocker_port_obj_add() resp. _del() to
maintain the behavior that the switchdev operation based code currently
has.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes a problem introduced by:
commit 2cde6acd49da ("netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock")
When using netconsole on a bond, __netpoll_cleanup can asynchronously
recurse multiple times, each __netpoll_free_async call can result in
more __netpoll_free_async's. This means there is now a race between
cleanup_work queues on multiple netpoll_info's on multiple devices and
the configuration of a new netpoll. For example if a netconsole is set
to enable 0, reconfigured, and enable 1 immediately, this netconsole
will likely not work.
Given the reason for __netpoll_free_async is it can be called when rtnl
is not locked, if it is locked, we should be able to execute
synchronously. It appears to be locked everywhere it's called from.
Generalize the design pattern from the teaming driver for current
callers of __netpoll_free_async.
CC: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, an FDB entry only ceases being offloaded when it is deleted.
This changes with VxLAN encapsulation.
Devices capable of performing VxLAN encapsulation usually have only one
FDB table, unlike the software data path which has two - one in the
bridge driver and another in the VxLAN driver.
Therefore, bridge FDB entries pointing to a VxLAN device are only
offloaded if there is a corresponding entry in the VxLAN FDB.
Allow clearing the offload indication in case the corresponding entry
was deleted from the VxLAN FDB.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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put_device has taken the null pinter check into account. So it is
safe to remove the duplicated check before put_device.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The gswip tag was missing in the dsa_tag_protocol_to_str() function, add it.
Fixes: 7969119293f5 ("net: dsa: Add Lantiq / Intel GSWIP tag support")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This handles the tag added by the PMAC on the VRX200 SoC line.
The GSWIP uses internally a GSWIP special tag which is located after the
Ethernet header. The PMAC which connects the GSWIP to the CPU converts
this special tag used by the GSWIP into the PMAC special tag which is
added in front of the Ethernet header.
This was tested with GSWIP 2.1 found in the VRX200 SoCs, other GSWIP
versions use slightly different PMAC special tags.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no way for user-space to know what a given DSA network device's
tagging protocol is. Expose this information through a dsa/tagging
attribute which reflects the tagging protocol currently in use.
This is helpful for configuration (e.g: none behaves dramatically
different wrt. bridges) as well as for packet capture tools when there
is not a proper Ethernet type available.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 52638f71fcff ("dsa: Move gpio reset into switch driver")
moved the GPIO handling into the switch drivers but forgot
to remove the GPIO header includes.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit 90b73b77d08e, list_head is no longer needed.
Now we just need to convert the list iteration to array
iteration for drivers.
Fixes: 90b73b77d08e ("net: sched: change action API to use array of pointers to actions")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Overlapping changes in RXRPC, changing to ktime_get_seconds() whilst
adding some tracepoints.
Signed-off-by: David S. Miller <davem@davemloft.net>
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For a port to be able to use EEE, both the MAC and the PHY must
support EEE. A phy can be provided by both a phydev or phylink. Verify
at least one of these exist, not just phydev.
Fixes: aab9c4067d23 ("net: dsa: Plug in PHYLINK support")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The BTF conflicts were simple overlapping changes.
The virtio_net conflict was an overlap of a fix of statistics counter,
happening alongisde a move over to a bonafide statistics structure
rather than counting value on the stack.
Signed-off-by: David S. Miller <davem@davemloft.net>
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If a DSA slave network device was previously disabled, there is no need
to suspend or resume it.
Fixes: 2446254915a7 ("net: dsa: allow switch drivers to implement suspend/resume hooks")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
We avoid 2 VLAs by using a pre-allocated field in dsa_switch. We also
try to avoid dynamic allocation whenever possible (when using fewer than
bits-per-long ports, which is the common case).
Link: http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Link: http://lkml.kernel.org/r/20180505185145.GB32630@lunn.ch
Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com>
[kees: tweak commit subject and message slightly]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pass the extact struct from a tc qdisc add to the block bind function and,
in turn, to the setup_tc ndo of binding device via the tc_block_offload
struct. Pass this back to any block callback registrations to allow
netlink logging of fails in the bind process.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When pskb_trim_rcsum fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling pskb_trim_rcsum.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A follow-up patch enables emitting VLAN notifications for the bridge CPU
port in addition to the existing slave port notifications. These
notifications have orig_dev set to the bridge in question.
Because there's no specific support for these VLANs, just ignore the
notifications to maintain the current behavior.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
S390 bpf_jit.S is removed in net-next and had changes in 'net',
since that code isn't used any more take the removal.
TLS data structures split the TX and RX components in 'net-next',
put the new struct members from the bug fix in 'net' into the RX
part.
The 'net-next' tree had some reworking of how the ERSPAN code works in
the GRE tunneling code, overlapping with a one-line headroom
calculation fix in 'net'.
Overlapping changes in __sock_map_ctx_update_elem(), keep the bits
that read the prog members via READ_ONCE() into local variables
before using them.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set the attrs and allow to expose port flavour to user via devlink.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Even if commit 1d27732f411d ("net: dsa: setup and teardown ports") indicated
that registering a devlink instance for unused ports is not a problem, and this
is true, this can be confusing nonetheless, so let's not do it.
Fixes: 1d27732f411d ("net: dsa: setup and teardown ports")
Reported-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for PHYLINK within the DSA subsystem in order to support more
complex devices such as pluggable (SFP) and non-pluggable (SFF) modules, 10G
PHYs, and traditional PHYs. Using PHYLINK allows us to drop some amount of
complexity we had while probing fixed and non-fixed PHYs using Device Tree.
Because PHYLINK separates the Ethernet MAC/port configuration into different
stages, we let switch drivers implement those, and for now, we maintain
functionality by calling dsa_slave_adjust_link() during
phylink_mac_link_{up,down} which provides semantically equivalent steps.
Drivers willing to take advantage of PHYLINK should implement the phylink_mac_*
operations that DSA wraps.
We cannot quite remove the adjust_link() callback just yet, because a number of
drivers rely on that for configuring their "CPU" and "DSA" ports, this is done
dsa_port_setup_phy_of() and dsa_port_fixed_link_register_of() still.
Drivers that utilize fixed links for user-facing ports (e.g: bcm_sf2) will need
to implement phylink_mac_ops from now on to preserve functionality, since PHYLINK
*does not* create a phy_device instance for fixed links.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since we use PHYLIB to manage the per-port link indication, this will
also be reflected correctly in the network device's carrier state, so we
can use ethtool_op_get_link() instead.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
In preparation for adding support for PHYLINK within DSA, define a number of
operations that we will need and that switch drivers can start implementing.
Proper integration with PHYLINK will follow in subsequent patches.
We start selecting PHYLINK (which implies PHYLIB) in net/dsa/Kconfig
such that drivers can be guaranteed that this dependency is properly
taken care of and can start referencing PHYLINK helper functions without
requiring stubs or anything.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Commit 161d82de1ff8 ("net: bridge: Notify about !added_by_user FDB
entries") causes the below oops when bringing up a slave interface,
because dsa_port_fdb_add is still scheduled, but with a NULL address.
To fix this, keep the dsa_slave_switchdev_event function agnostic of the
notified info structure and handle the added_by_user flag in the
specific dsa_slave_switchdev_event_work function.
[ 75.512263] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 75.519063] pgd = (ptrval)
[ 75.520545] [00000000] *pgd=00000000
[ 75.522839] Internal error: Oops: 17 [#1] ARM
[ 75.525898] Modules linked in:
[ 75.527673] CPU: 0 PID: 9 Comm: kworker/u2:1 Not tainted 4.17.0-rc2 #78
[ 75.532988] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
[ 75.538153] Workqueue: dsa_ordered dsa_slave_switchdev_event_work
[ 75.542970] PC is at mv88e6xxx_port_db_load_purge+0x60/0x1b0
[ 75.547341] LR is at mdiobus_read_nested+0x6c/0x78
[ 75.550833] pc : [<804cd5c0>] lr : [<804bba84>] psr: 60070013
[ 75.555796] sp : 9f54bd78 ip : 9f54bd87 fp : 9f54bddc
[ 75.559719] r10: 00000000 r9 : 0000000e r8 : 9f6a6010
[ 75.563643] r7 : 00000000 r6 : 81203048 r5 : 9f6a6010 r4 : 9f6a601c
[ 75.568867] r3 : 00000000 r2 : 00000000 r1 : 0000000d r0 : 00000000
[ 75.574094] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 75.579933] Control: 10c53c7d Table: 9de20059 DAC: 00000051
[ 75.584384] Process kworker/u2:1 (pid: 9, stack limit = 0x(ptrval))
[ 75.589349] Stack: (0x9f54bd78 to 0x9f54c000)
[ 75.592406] bd60: 00000000 00000000
[ 75.599295] bd80: 00000391 9f299d10 9f299d68 8014317c 9f7f0000 8120af00 00006dc2 00000000
[ 75.606186] bda0: 8120af00 00000000 9f54bdec 1c9f5d92 8014317c 9f6a601c 9f6a6010 00000000
[ 75.613076] bdc0: 00000000 00000000 9dd1141c 8125a0b4 9f54be0c 9f54bde0 804cd8a8 804cd56c
[ 75.619966] bde0: 0000000e 80143680 00000001 9dce9c1c 81203048 9dce9c10 00000003 00000000
[ 75.626858] be00: 9f54be5c 9f54be10 806abcac 804cd864 9f54be54 80143664 8014317c 80143054
[ 75.633748] be20: ffcaa81d 00000000 812030b0 1c9f5d92 00000000 81203048 9f54beb4 00000003
[ 75.640639] be40: ffffffff 00000000 9dd1141c 8125a0b4 9f54be84 9f54be60 80138e98 806abb18
[ 75.647529] be60: 81203048 9ddc4000 9dce9c54 9f72a300 00000000 00000000 9f54be9c 9f54be88
[ 75.654420] be80: 801390bc 80138e50 00000000 9dce9c54 9f54beac 9f54bea0 806a9524 801390a0
[ 75.661310] bea0: 9f54bedc 9f54beb0 806a9c7c 806a950c 9f54becc 00000000 00000000 00000000
[ 75.668201] bec0: 9f540000 1c9f5d92 805fe604 9ddffc00 9f54befc 9f54bee0 806ab228 806a9c38
[ 75.675092] bee0: 806ab178 9ddffc00 9f4c1900 9f40d200 9f54bf34 9f54bf00 80131e30 806ab184
[ 75.681983] bf00: 9f40d214 9f54a038 9f40d200 9f40d200 9f4c1918 812119a0 9f40d214 9f54a038
[ 75.688873] bf20: 9f40d200 9f4c1900 9f54bf7c 9f54bf38 80132124 80131d1c 9f5f2dd8 00000000
[ 75.695764] bf40: 812119a0 9f54a038 812119a0 81259c5b 9f5f2dd8 9f5f2dc0 9f53dbc0 00000000
[ 75.702655] bf60: 9f4c1900 801320b4 9f5f2dd8 9f4f7e88 9f54bfac 9f54bf80 80137ad0 801320c0
[ 75.709544] bf80: 9f54a000 9f53dbc0 801379a0 00000000 00000000 00000000 00000000 00000000
[ 75.716434] bfa0: 00000000 9f54bfb0 801010e8 801379ac 00000000 00000000 00000000 00000000
[ 75.723324] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 75.730206] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 75.737083] Backtrace:
[ 75.738252] [<804cd560>] (mv88e6xxx_port_db_load_purge) from [<804cd8a8>] (mv88e6xxx_port_fdb_add+0x50/0x68)
[ 75.746795] r10:8125a0b4 r9:9dd1141c r8:00000000 r7:00000000 r6:00000000 r5:9f6a6010
[ 75.753323] r4:9f6a601c
[ 75.754570] [<804cd858>] (mv88e6xxx_port_fdb_add) from [<806abcac>] (dsa_switch_event+0x1a0/0x660)
[ 75.762238] r8:00000000 r7:00000003 r6:9dce9c10 r5:81203048 r4:9dce9c1c
[ 75.767655] [<806abb0c>] (dsa_switch_event) from [<80138e98>] (notifier_call_chain+0x54/0x94)
[ 75.774893] r10:8125a0b4 r9:9dd1141c r8:00000000 r7:ffffffff r6:00000003 r5:9f54beb4
[ 75.781423] r4:81203048
[ 75.782672] [<80138e44>] (notifier_call_chain) from [<801390bc>] (raw_notifier_call_chain+0x28/0x30)
[ 75.790514] r9:00000000 r8:00000000 r7:9f72a300 r6:9dce9c54 r5:9ddc4000 r4:81203048
[ 75.796982] [<80139094>] (raw_notifier_call_chain) from [<806a9524>] (dsa_port_notify+0x24/0x38)
[ 75.804483] [<806a9500>] (dsa_port_notify) from [<806a9c7c>] (dsa_port_fdb_add+0x50/0x6c)
[ 75.811371] [<806a9c2c>] (dsa_port_fdb_add) from [<806ab228>] (dsa_slave_switchdev_event_work+0xb0/0x10c)
[ 75.819635] r4:9ddffc00
[ 75.820885] [<806ab178>] (dsa_slave_switchdev_event_work) from [<80131e30>] (process_one_work+0x120/0x3a4)
[ 75.829241] r6:9f40d200 r5:9f4c1900 r4:9ddffc00 r3:806ab178
[ 75.833612] [<80131d10>] (process_one_work) from [<80132124>] (worker_thread+0x70/0x574)
[ 75.840415] r10:9f4c1900 r9:9f40d200 r8:9f54a038 r7:9f40d214 r6:812119a0 r5:9f4c1918
[ 75.846945] r4:9f40d200
[ 75.848191] [<801320b4>] (worker_thread) from [<80137ad0>] (kthread+0x130/0x160)
[ 75.854300] r10:9f4f7e88 r9:9f5f2dd8 r8:801320b4 r7:9f4c1900 r6:00000000 r5:9f53dbc0
[ 75.860830] r4:9f5f2dc0
[ 75.862076] [<801379a0>] (kthread) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 75.867999] Exception stack(0x9f54bfb0 to 0x9f54bff8)
[ 75.871753] bfa0: 00000000 00000000 00000000 00000000
[ 75.878640] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 75.885519] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 75.890844] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:801379a0
[ 75.897377] r4:9f53dbc0 r3:9f54a000
[ 75.899663] Code: e3a02000 e3a03000 e14b26f4 e24bc055 (e5973000)
[ 75.904575] ---[ end trace fbca818a124dbf0d ]---
Fixes: 816a3bed9549 ("switchdev: Add fdb.added_by_user to switchdev notifications")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The following patch enables sending notifications also for events on FDB
entries that weren't added by the user. Give the drivers the information
necessary to distinguish between the two origins of FDB entries.
To maintain the current behavior, have switchdev-implementing drivers
bail out on notifications about non-user-added FDB entries. In case of
mlxsw driver, allow a call to mlxsw_sp_span_respin() so that SPAN over
bridge catches up with the changed FDB.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the same type of ethtool diversion that we have for
ETH_SS_STATS and make it work with ETH_SS_PHY_STATS. This allows
providing PHY level statistics for CPU ports that are directly
connecting to a PHY device.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for having more call sites attempting to obtain a
reference against a PHY device corresponding to a particular port,
introduce a helper function for that purpose.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Up until now we largely assumed that we were interested in ETH_SS_STATS
type of strings for all ethtool operations, this is about to change with
the introduction of additional string sets, e.g: ETH_SS_PHY_STATS.
Update all functions to take an appropriate stringset argument and act
on it when it is different than ETH_SS_STATS for now.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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This is completely redundant with what netdev_set_default_ethtool_ops()
does, we are always guaranteed to have a valid dev->ethtool_ops pointer,
however, within that structure, not all function calls may be populated,
so we still have to check them individually.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The Marvell switches under some conditions will pass a frame to the
host with the port being the CPU port. Such frames are invalid, and
should be dropped. Not dropping them can result in a crash when
incrementing the receive statistics for an invalid port.
Reported-by: Chris Healy <cphealy@gmail.com>
Fixes: 91da11f870f0 ("net: Distributed Switch Architecture protocol support")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Fun set of conflict resolutions here...
For the mac80211 stuff, these were fortunately just parallel
adds. Trivially resolved.
In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the
function phy_disable_interrupts() earlier in the file, whilst in
'net-next' the phy_error() call from this function was removed.
In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the
'rt_table_id' member of rtable collided with a bug fix in 'net' that
added a new struct member "rt_mtu_locked" which needs to be copied
over here.
The mlxsw driver conflict consisted of net-next separating
the span code and definitions into separate files, whilst
a 'net' bug fix made some changes to that moved code.
The mlx5 infiniband conflict resolution was quite non-trivial,
the RDMA tree's merge commit was used as a guide here, and
here are their notes:
====================
Due to bug fixes found by the syzkaller bot and taken into the for-rc
branch after development for the 4.17 merge window had already started
being taken into the for-next branch, there were fairly non-trivial
merge issues that would need to be resolved between the for-rc branch
and the for-next branch. This merge resolves those conflicts and
provides a unified base upon which ongoing development for 4.17 can
be based.
Conflicts:
drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524
(IB/mlx5: Fix cleanup order on unload) added to for-rc and
commit b5ca15ad7e61 (IB/mlx5: Add proper representors support)
add as part of the devel cycle both needed to modify the
init/de-init functions used by mlx5. To support the new
representors, the new functions added by the cleanup patch
needed to be made non-static, and the init/de-init list
added by the representors patch needed to be modified to
match the init/de-init list changes made by the cleanup
patch.
Updates:
drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function
prototypes added by representors patch to reflect new function
names as changed by cleanup patch
drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init
stage list to match new order from cleanup patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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During the conversion to dsa_is_user_port(), a condition ended up being
reversed, which would prevent the creation of any user port when using
the legacy binding and/or platform data, fix that.
Fixes: 4a5b85ffe2a0 ("net: dsa: use dsa_is_user_port everywhere")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
YueHaibing
Wen Yang
Russell King
Dan Carpenter
Marc Zyngier
Rundong Ge
Marek Vasut
Tristram Ha
David S. Miller
Andrew Lunn
Florian Fainelli
Petr Machata
Wolfram Sang
Debabrata Banerjee
Ido Schimmel
zhong jiang
Hauke Mehrtens
Linus Walleij
Cong Wang
Salvatore Mesoraca
John Hurley
Zhouyang Jia
Jiri Pirko
Vivien Didelot