Commit Graph

68323 Commits

Author SHA1 Message Date
Arkadi Sharshevsky
a989cdb473 mlxsw: spectrum: Remove support for bridge FDB learning sync
Currently the mlxsw driver supports an option for disabling syncing
the hardware learned FDBs with the software bridge. This behavior
breaks the bridge offload model and thus it is removed.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 14:16:26 -04:00
Arkadi Sharshevsky
6b26b51b1d net: bridge: Add support for notifying devices about FDB add/del
Currently the bridge doesn't notify the underlying devices about new
FDBs learned. The FDB sync is placed on the switchdev notifier chain
because devices may potentially learn FDB that are not directly related
to their ports, for example:

1. Mixed SW/HW bridge - FDBs that point to the ASICs external devices
                        should be offloaded as CPU traps in order to
			perform forwarding in slow path.
2. EVPN - Externally learned FDBs for the vtep device.

Notification is sent only about static FDB add/del. This is done due
to fact that currently this is the only scenario supported by switch
drivers.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 14:16:25 -04:00
Vivien Didelot
adc3a9ce85 net: dsa: mv88e6xxx: do not skip ports on VLAN del
The mv88e6xxx driver currently tries to be smart and remove by itself a
VLAN entry from the VTU when the driven switch sees no user ports as
members of the VLAN.

This is bad in a multi-chip switch fabric, since a chip in between
others may have no bridge port members, but still needs to be aware of
the VID in order to correctly pass frames in the data path.

Now that the DSA core explicitly manages DSA and CPU ports, do not skip
them when checking remaining VLAN members.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 11:43:32 -04:00
Vivien Didelot
553a768dea net: dsa: mv88e6xxx: exclude all ports in new VLAN
Now that the DSA core adds the CPU and DSA ports itself to the new VLAN
entry, there is no need to include them as members of this VLAN when
initializing a new VTU entry.

As of now, initialize a new VTU entry with all ports excluded.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 11:43:32 -04:00
Vivien Didelot
c91498e15b net: dsa: mv88e6xxx: define membership on VLAN add
Define the target port membership of the VLAN entry in
mv88e6xxx_port_vlan_add where ds is scoped.

Allow the DSA core to call later the port_vlan_add operation for CPU or
DSA ports, by using the Unmodified membership for these ports, as in the
current behavior.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 11:43:31 -04:00
Jiri Pirko
a5fcf8a6c9 net: propagate tc filter chain index down the ndo_setup_tc call
We need to push the chain index down to the drivers, so they have the
information to which chain the rule belongs. For now, no driver supports
multichain offload, so only chain 0 is supported. This is needed to
prevent chain squashes during offload for now. Later this will be used
to implement multichain offload.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-08 09:55:53 -04:00
Tariq Toukan
808df6a209 net/mlx4_en: Bump driver version
Remove date and bump version for mlx4_en driver.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 15:33:01 -04:00
Tariq Toukan
cea2a6d81d net/mlx4_core: Bump driver version
Remove date and bump version for mlx4_core driver.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 15:33:00 -04:00
Andrew Lunn
5ebe31d7b2 net: dsa: mv88e6xxx: Have 6161/6123 use EDSA tags
The mv88e6161 and mv88e6123 are capable of using EDSA tags when
passing frames from the host to the switch and back.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 15:28:23 -04:00
Mark Bloch
57d88182ea vxlan: use a more suitable function when assigning NULL
When stopping the vxlan interface we detach it from the socket.
Use RCU_INIT_POINTER() and not rcu_assign_pointer() to do so.

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 15:26:03 -04:00
Ganesh Goudar
1dec4cec9f cxgb4: Fix tids count for ipv6 offload connection
the adapter consumes two tids for every ipv6 offload
connection be it active or passive, calculate tid usage
count accordingly.

Also change the signatures of relevant functions to get
the address family.

Signed-off-by: Rizwan Ansari <rizwana@chelsio.com>
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 15:14:34 -04:00
Jakub Kicinski
f9380629fa nfp: advertise support for NFD ABI 0.5
NFD ABI 0.5 is equivalent to NFD ABI 3.0 but requires that the
driver checks the APP id symbol and makes sure it can support
given app.  Most advanced apps will likely require control vNIC
(ability to exchange control messages between the driver and
app FW).  Detailed app version checking and capability exchange
is left to app-specific code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:42 -04:00
Jakub Kicinski
02082701b9 nfp: create control vNICs and wire up rx/tx
When driver encounters an nfp_app which has a control message handler
defined, allocate a control vNIC.  This control channel will be used
to exchange data with the application FW such as flow table programming,
statistics and global datapath control.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:42 -04:00
Jakub Kicinski
2c7e41c0b2 nfp: allow non-equal distribution of IRQs
Thus far the code assumed all vNICs will request similar number of IRQs.
This will be no longer true with control vNICs (where 1 IRQ will suffice).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:41 -04:00
Jakub Kicinski
6d4b0d8ed6 nfp: slice the netdev spawning function
We want to be able to create a special vNIC for control messages.
This vNIC should be created before any netdev is registered to allow
nfp_app logic to exchange messages with the FW app before any netdev
is visible to user space.  Unfortunately we can't enable IRQs until
we know how many vNICs we will need to spawn.

Divide the function which spawns netdevs for vNICs into three parts:
 - vNIC/memory allocation;
 - IRQ allocation;
 - netdev init and register.

This will help us insert the initialization of the control channel
after IRQ allocation but before netdev init and register.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:41 -04:00
Jakub Kicinski
21537bc701 nfp: don't clutter init code passing fw_ver around
Reading fw version from the BAR is trivial.  Don't pass it around
through layers of init functions, simply read it again where needed.

This commit has the side effect of each vNIC having the exact NFD
version from its own control memory, rather than all data vNICs
assuming the version of the first one.  This should not result in
user-visible changes, though.  Capabilities of data vNICs of trival
apps are identical.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:41 -04:00
Jakub Kicinski
73e253f0e5 nfp: map all queue controllers at once
RX and TX queue controllers are interleaved.  Instead of creating
two mappings which map the same area at slightly different offset,
create only one mapping.  Always map all queue controllers to simplify
the code and allow reusing the mapping for non-data vNICs.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:40 -04:00
Jakub Kicinski
c24ca95ff6 nfp: make vNIC ctrl memory mapping function reusable
We will soon need to map control vNIC PCI memory as well as data vNIC
memory.  Make the function for mapping areas pointed to by an RTsym
reusable.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:40 -04:00
Jakub Kicinski
77ece8d5f1 nfp: add control vNIC datapath
Since control vNICs don't have a netdev, they can't use napi and
queuing stack provides.  Add simple tasklet-based data receive
and send of control messages with queuing on a skb_list.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:40 -04:00
Jakub Kicinski
5c0dbe9ecf nfp: prepare config and enable for working without netdevs
Out of the three stages of ifup/ifdown (allocate, configure, start)
- this commit prepares the configuration stage for working with
control vNICs.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:39 -04:00
Jakub Kicinski
a7b1ad0875 nfp: allow allocation and initialization of netdev-less vNICs
vNICs used for sending and receiving control messages shouldn't
really have a netdev.  Add the ability to initialize vNICs for
netdev-less operation.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:39 -04:00
Jakub Kicinski
042f4ba62f nfp: make sure debug accesses don't depend on netdevs
We want to be able to inspect the state of descriptor rings of
the control vNIC, so it will use the same interface as data vNICs.

Make sure the code doesn't use netdevs to determine state
of the rings and names things appropriately.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:39 -04:00
Jakub Kicinski
c821e61789 nfp: prepare print macros for use without netdev
To be able to reuse print macros easily with control vNICs make the
macros check if netdev pointer is populated and use dev_* print
functions otherwise.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:38 -04:00
Jakub Kicinski
cd083ce158 nfp: move nfp_net_vecs_init()
Move nfp_net_vecs_init() after all datapath functions.  We will need
to init poll() callbacks from this function soon.

No functional changes.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:38 -04:00
Jakub Kicinski
4621199dbf nfp: reuse ring free code on close
On the close path reuse the ring free helpers introduced for runtime
reconfiguration.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:38 -04:00
Jakub Kicinski
ee26756d01 nfp: split out the allocation part of open
Our open/close implementations have 3 stages:
 - allocation/freeing of ring resources, irqs etc.,
 - device config,
 - device/stack enable (can't fail).

Right now all of those stages are placed in separate functions,
apart from allocation during open.  Fix that.  It will make it
easier for us to allocate resources for netdev-less vNICs.
Because we want to reuse allocation code in netdev-less vNICs
leave the netif_set_real_num_[rt]x_queues() calls inside open.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:37 -04:00
Jakub Kicinski
d00ca2f378 nfp: reorder open and close functions
We will soon reuse parts of .ndo_stop() for clean up after errors
in .ndo_open().  Reorder the associated functions to make that possible.

No functional changes.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 12:51:37 -04:00
Andrew Lunn
2b30842b23 net: fec: Clear and enable MIB counters on imx51
Both the IMX51 and IMX53 datasheet indicates that the MIB counters
should be cleared during setup. Otherwise random numbers are returned
via ethtool -S.  Add a quirk and a function to do this.

Tested on an IMX51.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07 10:06:52 -04:00
David S. Miller
216fe8f021 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Just some simple overlapping changes in marvell PHY driver
and the DSA core code.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 22:20:08 -04:00
Russell King
20b2af32ff net: phy: add Marvell Alaska X 88X3310 10Gigabit PHY support
Add phylib support for the Marvell Alaska X 10 Gigabit PHY (MV88X3310).
This phy is able to operate at 10G, 1G, 100M and 10M speeds, and only
supports Clause 45 accesses.

The PHY appears (based on the vendor IDs) to be two different vendors
IP, with each devad containing several instances.

This PHY driver has only been tested with the RJ45 copper port, fiber
port and a Marvell Armada 8040-based ethernet interface.

It should be noted that to use the full range of speeds, MAC drivers
need to also reconfigure the link mode as per phydev->interface, since
the PHY automatically changes its interface mode depending on the
negotiated speed.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 21:14:13 -04:00
Russell King
921690f2aa net: phy: split out 10G genphy support
Move the old 10G genphy support to sit beside the new clause 45 library
functions, so all the 10G phy code is together.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 21:14:13 -04:00
Russell King
002ba7058a net: phy: hook up clause 45 autonegotiation restart
genphy_restart_aneg() can only restart autonegotiation on clause 22
PHYs.  Add a phy_restart_aneg() function which selects between the
clause 22 and clause 45 restart functionality depending on the PHY
type and whether the Clause 45 PHY supports the Clause 22 register set.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 21:14:13 -04:00
Russell King
41408ad519 net: phy: avoid genphy_aneg_done() for PHYs without clause 22 support
Avoid calling genphy_aneg_done() for PHYs that do not implement the
Clause 22 register set.

Clause 45 PHYs may implement the Clause 22 register set along with the
Clause 22 extension MMD.  Hence, we can't simply block access to the
Clause 22 functions based on the PHY being a Clause 45 PHY.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 21:14:13 -04:00
Russell King
5acde34a5a net: phy: add 802.3 clause 45 support to phylib
Add generic helpers for 802.3 clause 45 PHYs for >= 10Gbps support.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 21:14:13 -04:00
Colin Ian King
1d3028f4c1 net: stmmac: fix a broken u32 less than zero check
The check that queue is less or equal to zero is always true
because queue is a u32; queue is decremented and will wrap around
and never go -ve. Fix this by making queue an int.

Detected by CoverityScan, CID#1428988 ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:26:28 -04:00
Niklas Cassel
426849e661 net: stmmac: fix completely hung TX when using TSO
stmmac_tso_allocator can fail to set the Last Descriptor bit
on a descriptor that actually was the last descriptor.

This happens when the buffer of the last descriptor ends
up having a size of exactly TSO_MAX_BUFF_SIZE.

When the IP eventually reaches the next last descriptor,
which actually has the bit set, the DMA will hang.

When the DMA hangs, we get a tx timeout, however,
since stmmac does not do a complete reset of the IP
in stmmac_tx_timeout, we end up in a state with
completely hung TX.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:24:09 -04:00
Jason Wang
feec084a7c tun: use symmetric hash
Tun actually expects a symmetric hash for queue selecting to work
correctly, otherwise packets belongs to a single flow may be
redirected to the wrong queue. So this patch switch to use
__skb_get_hash_symmetric().

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:23:31 -04:00
Max Filippov
d220b942a4 net: ethoc: enable NAPI before poll may be scheduled
ethoc_reset enables device interrupts, ethoc_interrupt may schedule a
NAPI poll before NAPI is enabled in the ethoc_open, which results in
device being unable to send or receive anything until it's closed and
reopened. In case the device is flooded with ingress packets it may be
unable to recover at all.
Move napi_enable above ethoc_reset in the ethoc_open to fix that.

Fixes: a170285772 ("net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:22:51 -04:00
Vivien Didelot
5461bd41fd net: dsa: mv88e6xxx: fix 6085 frame mode masking
The register bits used for the frame mode were masked with DSA (0x1)
instead of the mask value (0x3) in the 6085 implementation of
port_set_frame_mode. Fix this.

Fixes: 56995cbc35 ("net: dsa: mv88e6xxx: Refactor CPU and DSA port setup")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:04:29 -04:00
Eugeniu Rosca
79514ef670 ravb: Fix use-after-free on ifconfig eth0 down
Commit a47b70ea86 ("ravb: unmap descriptors when freeing rings") has
introduced the issue seen in [1] reproduced on H3ULCB board.

Fix this by relocating the RX skb ringbuffer free operation, so that
swiotlb page unmapping can be done first. Freeing of aligned TX buffers
is not relevant to the issue seen in [1]. Still, reposition TX free
calls as well, to have all kfree() operations performed consistently
_after_ dma_unmap_*()/dma_free_*().

[1] Console screenshot with the problem reproduced:

salvator-x login: root
root@salvator-x:~# ifconfig eth0 up
Micrel KSZ9031 Gigabit PHY e6800000.ethernet-ffffffff:00: \
       attached PHY driver [Micrel KSZ9031 Gigabit PHY]   \
       (mii_bus:phy_addr=e6800000.ethernet-ffffffff:00, irq=235)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
root@salvator-x:~#
root@salvator-x:~# ifconfig eth0 down

==================================================================
BUG: KASAN: use-after-free in swiotlb_tbl_unmap_single+0xc4/0x35c
Write of size 1538 at addr ffff8006d884f780 by task ifconfig/1649

CPU: 0 PID: 1649 Comm: ifconfig Not tainted 4.12.0-rc4-00004-g112eb07287d1 #32
Hardware name: Renesas H3ULCB board based on r8a7795 (DT)
Call trace:
[<ffff20000808f11c>] dump_backtrace+0x0/0x3a4
[<ffff20000808f4d4>] show_stack+0x14/0x1c
[<ffff20000865970c>] dump_stack+0xf8/0x150
[<ffff20000831f8b0>] print_address_description+0x7c/0x330
[<ffff200008320010>] kasan_report+0x2e0/0x2f4
[<ffff20000831eac0>] check_memory_region+0x20/0x14c
[<ffff20000831f054>] memcpy+0x48/0x68
[<ffff20000869ed50>] swiotlb_tbl_unmap_single+0xc4/0x35c
[<ffff20000869fcf4>] unmap_single+0x90/0xa4
[<ffff20000869fd14>] swiotlb_unmap_page+0xc/0x14
[<ffff2000080a2974>] __swiotlb_unmap_page+0xcc/0xe4
[<ffff2000088acdb8>] ravb_ring_free+0x514/0x870
[<ffff2000088b25dc>] ravb_close+0x288/0x36c
[<ffff200008aaf8c4>] __dev_close_many+0x14c/0x174
[<ffff200008aaf9b4>] __dev_close+0xc8/0x144
[<ffff200008ac2100>] __dev_change_flags+0xd8/0x194
[<ffff200008ac221c>] dev_change_flags+0x60/0xb0
[<ffff200008ba2dec>] devinet_ioctl+0x484/0x9d4
[<ffff200008ba7b78>] inet_ioctl+0x190/0x194
[<ffff200008a78c44>] sock_do_ioctl+0x78/0xa8
[<ffff200008a7a128>] sock_ioctl+0x110/0x3c4
[<ffff200008365a70>] vfs_ioctl+0x90/0xa0
[<ffff200008365dbc>] do_vfs_ioctl+0x148/0xc38
[<ffff2000083668f0>] SyS_ioctl+0x44/0x74
[<ffff200008083770>] el0_svc_naked+0x24/0x28

The buggy address belongs to the page:
page:ffff7e001b6213c0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x4000000000000000()
raw: 4000000000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: 0000000000000000 ffff7e001b6213e0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8006d884f680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8006d884f700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8006d884f780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff8006d884f800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8006d884f880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
Disabling lock debugging due to kernel taint
root@salvator-x:~#

Fixes: a47b70ea86 ("ravb: unmap descriptors when freeing rings")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 16:02:22 -04:00
Ganesh Goudar
8ea4fae926 cxgb4: implement ndo_set_vf_rate()
Implement ndo_set_vf_rate() for mgmt interface to support rate-limiting
of VF traffic using 'ip' command.

Based on the original work of Kumar Sanghvi <kumaras@chelsio.com>

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 15:17:10 -04:00
Joe Perches
4f5a98410d ppp: mppe: Use vsnprintf extension %phN
Using this extension reduces the object size.

$ size drivers/net/ppp/ppp_mppe.o*
   text	   data	    bss	    dec	    hex	filename
   5683	    216	      8	   5907	   1713	drivers/net/ppp/ppp_mppe.o.new
   5808	    216	      8	   6032	   1790	drivers/net/ppp/ppp_mppe.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 15:16:33 -04:00
Colin Ian King
594238158b net: stmmac: ensure jumbo_frm error return is correctly checked for -ve value
The current comparison of entry < 0 will never be true since entry is an
unsigned integer. Make entry an int to ensure -ve error return values
from the call to jumbo_frm are correctly being caught.

Detected by CoverityScan, CID#1238760 ("Macro compares unsigned to 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 15:13:46 -04:00
yuval.shaia@oracle.com
f8fe997546 net: phy: Delete unused function phy_ethtool_gset
It's unused, so remove it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 15:12:28 -04:00
David S. Miller
7b868fed00 wireless-drivers fixes for 4.12
It has been a slow start of cycle and this the first set of fixes for
 4.12. Nothing really major here.
 
 wcn36xx
 
 * fix an issue with module reload
 
 brcmfmac
 
 * fix aligment regression on 64 bit systems
 
 iwlwifi
 
 * fixes for memory leaks, runtime PM, memory initialisation and other
   smaller problems
 
 * fix IBSS on devices using DQA mode (7260 and up)
 
 * fix the minimum firmware API requirement for 7265D, 3168, 8000 and
   8265
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Merge tag 'wireless-drivers-for-davem-2017-06-06' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.12

It has been a slow start of cycle and this the first set of fixes for
4.12. Nothing really major here.

wcn36xx

* fix an issue with module reload

brcmfmac

* fix aligment regression on 64 bit systems

iwlwifi

* fixes for memory leaks, runtime PM, memory initialisation and other
  smaller problems

* fix IBSS on devices using DQA mode (7260 and up)

* fix the minimum firmware API requirement for 7265D, 3168, 8000 and
  8265
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:53:20 -04:00
Jiri Pirko
bd5ddba52d spectrum_flower: Implement gact trap TC action offload
Just use the previously prepared infrastructure and offload the gact
trap action to ACL.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:45:24 -04:00
Jiri Pirko
df7eea963e acl: Introduce ACL trap action
Use trap/discard flex action to implement trap.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:45:24 -04:00
Jiri Pirko
0db7b386f5 mlxsw: spectrum: Introduce ACL trap
Introduce an ACL trap and put it into ip2me trap group.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:45:24 -04:00
Jiri Pirko
be8408e144 mlxsw: pci: Fix size of trap_id field in CQE
The "trap_id" is 9bits long. So far, this was not a problem since we
used only traps with ids that fit into 8bits. But the ACL traps that are
going to be introduced use the 9th bit.

Fixes: eda6500a98 ("mlxsw: Add PCI bus implementation")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:45:23 -04:00
Colin Ian King
928a759593 net/mlxfw: remove redundant goto on error check
The check to see of err is set and the subsequent goto is extraneous
as the next statement is where the goto is jumping to. Remove this
redundant check and goto.

Detected by CoverityScan, CID#1437734 ("Identical code for
different branches")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06 12:21:29 -04:00