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Remigiusz Kołłątaj [Fri, 14 Apr 2017 18:32:28 +0000 (20:32 +0200)]
can: mcba_usb: Add support for Microchip CAN BUS Analyzer
SocketCAN driver for Microchip CAN BUS Analyzer
(http://www.microchip.com/development-tools/)
Changes in v4:
- possible memory leak fixed in mcba_usb_write_bulk_callback
- LED support added
- failure handling in mcba_usb_probe improved
- C99 initializers for structs on stack
Changes in v3:
- improved/simplified CAN ID conversion
- functions for transmission of skb and cmd separated
- fixed/improved netif_stop_queue handling
- style/cosmetic corrections
Changes in v2:
- Termination handling reimplemented to fit new netlink API
(IFLA_CAN_TERMINATION)
- Bitrate handling reimplemented to fit new netlink API
(IFLA_CAN_BITRATE)
- CAN ID conversion refactored (changed from macro to inline functions)
- CAN DLC handling using get_can_dlc()
- Endianness handling for can_speed introduced
- Debugging removed
- Redundant error prints removed
- Style/cosmetic corrections (i.e. macro names, redefs, inits etc.)
Signed-off-by: Remigiusz Kołłątaj <remigiusz.kollataj@mobica.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:15 +0000 (14:10 +0200)]
can: m_can: Enable TX FIFO Handling for M_CAN IP version >= v3.1.x
* Added defines for TX Event FIFO Element
* Adapted ndo_start_xmit function.
For versions >= v3.1.x it uses the TX FIFO to optimize the data
throughput. It stores the echo skb at the same index as in the
M_CAN's TX FIFO. The frame's message marker is set to this index.
This message marker is received in the TX Event FIFO after
the message was successfully transmitted. It is used to echo the
correct echo skb back to the network stack.
* Added m_can_echo_tx_event function. It reads all received
message markers in the TX Event FIFO and loops back the
corresponding echo skbs.
* ISR checks for new TX Event Entry interrupt for version >= 3.1.x.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:14 +0000 (14:10 +0200)]
can: m_can: Configuration for TX and TX event FIFOs
* TX/TX Event FIFO sizes are configured for version >= v3.1.x
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:13 +0000 (14:10 +0200)]
can: m_can: Enable M_CAN version dependent initialization
This patch adapts the initialization of the M_CAN. So it can be used
with all versions >= 3.0.x.
Changes:
* Added version element to m_can_priv structure to hold M_CAN version.
* Renamed bittiming structs for version 3.0.x
* Added new bittiming structs for version >= 3.1.x
* Function alloc_m_can_dev takes 2 new arguments. The TX FIFO size and the
base address of the module.
* Chip configuration for CAN_CTRLMODE_LOOPBACK is changed: Enabled
CCCR_MON bit. In combination with TEST_LBCK it activates the internal
loopback mode. Leaving CCCR_MON '0' results in external loopback mode.
* Clocks are temporarily enabled by platform_propbe function in order to
allow read access to the Core Release register and the Control Register.
Registers are used to detect M_CAN version and optional Non-ISO Feature.
Initialization of M_CAN for version >= 3.1.x:
* TX FIFO of M_CAN is used to transmit frames. The driver does not need to
stop the tx queue after each frame sent.
* Initialization of TX Event FIFO is added.
* NON-ISO is fixed for all M_CAN versions < 3.2.x. Version 3.2.x _can_ have
the NISO (Non-ISO) bit which can switch the mode of the M_CAN to Non-ISO
mode. This bit does not have to be writeable. Therefore it is checked.
If it is writable Non-ISO support is added to the controllers supported
CAN modes.
New Functions:
* Function to check the Core Release version. The read value determines the
behaviour of the driver.
* Function to check if the NISO bit for version >= 3.2.x is implemented.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:12 +0000 (14:10 +0200)]
can: m_can: Updated register defines to newest version
* Updated register defines to newest M_CAN version (v3.2.1).
* Changed defines in the whole code.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:11 +0000 (14:10 +0200)]
can: m_can: Removed virtual address from print
The virtual address of the device was printed. I removed it because it
leaks internal information.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:10 +0000 (14:10 +0200)]
can: m_can: Removed initialization of FIFO water marks
FIFO water marks disabled because the driver doesn't handle water mark
events.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Mario Huettel [Sat, 8 Apr 2017 12:10:09 +0000 (14:10 +0200)]
can: m_can: Disabled Interrupt Line 1
* Disabled interrupt line 1. The driver didn't use it.
Signed-off-by: Mario Huettel <mario.huettel@gmx.net>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Stephane Grosjean [Thu, 19 Jan 2017 15:31:07 +0000 (16:31 +0100)]
can: peak: add support for PEAK PCAN-PCIe FD CAN-FD boards
This patch adds the support of the PCAN-PCI Express FD boards made
by PEAK-System, for computers using the PCI Express slot.
The PCAN-PCI Express FD has one or two CAN FD channels, depending
on the model. A galvanic isolation of the CAN ports protects
the electronics of the card and the respective computer against
disturbances of up to 500 Volts. The PCAN-PCI Express FD can be operated
with ambient temperatures in a range of -40 to +85 °C.
Such boards run an extented version of the CAN-FD IP running into USB
CAN-FD interfaces from PEAK-System, so this patch adds several new commands
and their corresponding data types to the PEAK CAN-FD common definitions
header file too.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Stephane Grosjean [Thu, 19 Jan 2017 15:31:06 +0000 (16:31 +0100)]
can: peak: move header file to new can common subdir
The CAN-FD IP from PEAK-System runs into several kinds of PC CAN-FD
interfaces. Up to now, only the USB CAN-FD adapters were supported by
the Kernel. In order to prepare the adding of some new non-USB CAN-FD
interfaces, this patch moves - and rename - the IP definitions file
from its private (usb) sub-directory into a - newly created - CAN specific
one.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Stephane Grosjean [Thu, 19 Jan 2017 15:31:05 +0000 (16:31 +0100)]
can: peak: fix usage of const qualifier in pointers args
Fixes the usage of the const qualifier in the memory pointer arguments
of the declared inline functions. By changing the line containing "const",
this patch also changes the name of the arg into a more usual one.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Stephane Grosjean [Thu, 19 Jan 2017 15:31:04 +0000 (16:31 +0100)]
can: peak: fix usage of usb specific data type
This patch fixes the wrong usage of a specific USB data type into a common
header file. This common header file is intended to define the common data
types and values that define access to the PEAK-System CAN-FD IP, whatever
the PC interface is.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
David S. Miller [Tue, 25 Apr 2017 02:42:34 +0000 (19:42 -0700)]
sparc64: Improve 64-bit constant loading in eBPF JIT.
Doing a full 64-bit decomposition is really stupid especially for
simple values like 0 and -1.
But if we are going to optimize this, go all the way and try for all 2
and 3 instruction sequences not requiring a temporary register as
well.
First we do the easy cases where it's a zero or sign extended 32-bit
number (sethi+or, sethi+xor, respectively).
Then we try to find a range of set bits we can load simply then shift
up into place, in various ways.
Then we try negating the constant and see if we can do a simple
sequence using that with a xor at the end. (f.e. the range of set
bits can't be loaded simply, but for the negated value it can)
The final optimized strategy involves 4 instructions sequences not
needing a temporary register.
Otherwise we sadly fully decompose using a temp..
Example, from ALU64_XOR_K: 0x0000ffffffff0000 ^ 0x0 = 0x0000ffffffff0000:
0000000000000000 <foo>:
0: 9d e3 bf 50 save %sp, -176, %sp
4: 01 00 00 00 nop
8: 90 10 00 18 mov %i0, %o0
c: 13 3f ff ff sethi %hi(0xfffffc00), %o1
10: 92 12 63 ff or %o1, 0x3ff, %o1 !
ffffffff <foo+0xffffffff>
14: 93 2a 70 10 sllx %o1, 0x10, %o1
18: 15 3f ff ff sethi %hi(0xfffffc00), %o2
1c: 94 12 a3 ff or %o2, 0x3ff, %o2 !
ffffffff <foo+0xffffffff>
20: 95 2a b0 10 sllx %o2, 0x10, %o2
24: 92 1a 60 00 xor %o1, 0, %o1
28: 12 e2 40 8a cxbe %o1, %o2, 38 <foo+0x38>
2c: 9a 10 20 02 mov 2, %o5
30: 10 60 00 03 b,pn %xcc, 3c <foo+0x3c>
34: 01 00 00 00 nop
38: 9a 10 20 01 mov 1, %o5 ! 1 <foo+0x1>
3c: 81 c7 e0 08 ret
40: 91 eb 40 00 restore %o5, %g0, %o0
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 22:56:21 +0000 (15:56 -0700)]
sparc64: Support cbcond instructions in eBPF JIT.
cbcond combines a compare with a branch into a single instruction.
The limitations are:
1) Only newer chips support it
2) For immediate compares we are limited to 5-bit signed immediate
values
3) The branch displacement is limited to 10-bit signed
4) We cannot use it for JSET
Also, cbcond (unlike all other sparc control transfers) lacks a delay
slot.
Currently we don't have a useful instruction we can push into the
delay slot of normal branches. So using cbcond pretty much always
increases code density, and is therefore a win.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 20:20:20 +0000 (16:20 -0400)]
Merge branch 'bpf-misc-cleanups'
Alexander Alemayhu says:
====================
Misc BPF cleanup
while looking into making the Makefile in samples/bpf better handle O= I saw
several warnings when running `make clean && make samples/bpf/`. This series
reduces those warnings.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Alemayhu [Mon, 24 Apr 2017 13:31:08 +0000 (15:31 +0200)]
samples/bpf: check before defining offsetof
Fixes the following warning
samples/bpf/test_lru_dist.c:28:0: warning: "offsetof" redefined
#define offsetof(TYPE, MEMBER) ((size_t)&((TYPE *)0)->MEMBER)
In file included from ./tools/lib/bpf/bpf.h:25:0,
from samples/bpf/libbpf.h:5,
from samples/bpf/test_lru_dist.c:24:
/usr/lib/gcc/x86_64-redhat-linux/6.3.1/include/stddef.h:417:0: note: this is the location of the previous definition
#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Alemayhu [Mon, 24 Apr 2017 13:31:07 +0000 (15:31 +0200)]
samples/bpf: add static to function with no prototype
Fixes the following warning
samples/bpf/cookie_uid_helper_example.c: At top level:
samples/bpf/cookie_uid_helper_example.c:276:6: warning: no previous prototype for ‘finish’ [-Wmissing-prototypes]
void finish(int ret)
^~~~~~
HOSTLD samples/bpf/per_socket_stats_example
Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Alemayhu [Mon, 24 Apr 2017 13:31:06 +0000 (15:31 +0200)]
samples/bpf: add -Wno-unknown-warning-option to clang
I was initially going to remove '-Wno-address-of-packed-member' because I
thought it was not supposed to be there but Daniel suggested using
'-Wno-unknown-warning-option'.
This silences several warnings similiar to the one below
warning: unknown warning option '-Wno-address-of-packed-member' [-Wunknown-warning-option]
1 warning generated.
clang -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/6.3.1/include -I./arch/x86/include -I./arch/x86/include/generated/uapi -I./arch/x86/include/generated -I./include
-I./arch/x86/include/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h \
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
-Wno-compare-distinct-pointer-types \
-Wno-gnu-variable-sized-type-not-at-end \
-Wno-address-of-packed-member -Wno-tautological-compare \
-O2 -emit-llvm -c samples/bpf/xdp_tx_iptunnel_kern.c -o -| llc -march=bpf -filetype=obj -o samples/bpf/xdp_tx_iptunnel_kern.o
$ clang --version
clang version 3.9.1 (tags/RELEASE_391/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Mon, 24 Apr 2017 20:14:35 +0000 (22:14 +0200)]
bpf: make bpf_xdp_adjust_head support mandatory
Now that also the last in-tree user of the xdp_adjust_head bit has
been removed, we can remove the flag from struct bpf_prog altogether.
This, at the same time, also makes sure that any future driver for
XDP comes with bpf_xdp_adjust_head() support right away.
A rejection based on this flag would also mean that tail calls
couldn't be used with such driver as per
c2002f983767 ("bpf: fix
checking xdp_adjust_head on tail calls") fix, thus lets not allow
for it in the first place.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pan Bian [Sun, 23 Apr 2017 12:04:04 +0000 (20:04 +0800)]
qlcnic: fix unchecked return value
Function pci_find_ext_capability() may return 0, which is an invalid
address. In function qlcnic_sriov_virtid_fn(), its return value is used
without validation. This may result in invalid memory access bugs. This
patch fixes the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pan Bian [Sun, 23 Apr 2017 09:38:35 +0000 (17:38 +0800)]
wan: pc300too: abort path on failure
In function pc300_pci_init_one(), on the ioremap error path, function
pc300_pci_remove_one() is called to free the allocated memory. However,
the path is not terminated, and the freed memory will be used later,
resulting in use-after-free bugs. This path fixes the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pan Bian [Sun, 23 Apr 2017 07:09:19 +0000 (15:09 +0800)]
tipc: check return value of nlmsg_new
Function nlmsg_new() will return a NULL pointer if there is no enough
memory, and its return value should be checked before it is used.
However, in function tipc_nl_node_get_monitor(), the validation of the
return value of function nlmsg_new() is missed. This patch fixes the
bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pan Bian [Sun, 23 Apr 2017 06:28:37 +0000 (14:28 +0800)]
lwtunnel: check return value of nla_nest_start
Function nla_nest_start() may return a NULL pointer on error. However,
in function lwtunnel_fill_encap(), the return value of nla_nest_start()
is not validated before it is used. This patch checks the return value
of nla_nest_start() against NULL.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 18:35:45 +0000 (14:35 -0400)]
Merge branch 'nfp-dma-adjust_head-fixes'
Jakub Kicinski says:
====================
nfp: DMA flags, adjust head and fixes
This series takes advantage of Alex's DMA_ATTR_SKIP_CPU_SYNC to make
XDP packet modifications "correct" from DMA API point of view. It
also allows us to parse the metadata before we run XDP at no additional
DMA sync cost. That way we can get rid of the metadata memcpy, and
remove the last upstream user of bpf_prog->xdp_adjust_head.
David's patch adds a way to read capabilities from the management
firmware.
There are also two net-next fixes. Patch 4 which fixes what seems to
be a result of a botched rebase on my part. Patch 5 corrects locking
when state of ethernet ports is being refreshed.
v3: move the sync from alloc func to the actual give to hw func
v2: sync rx buffers before giving them to the card (Alex)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Sun, 23 Apr 2017 03:17:56 +0000 (20:17 -0700)]
nfp: remove the refresh of all ports optimization
The code refreshing the eth port state was trying to update state
of all ports of the card. Unfortunately to safely walk the port
list we would have to hold the port lock, which we can't due to
lock ordering constraints against rtnl.
Make the per-port sync refresh and async refresh of all ports
completely separate routines.
Fixes:
172f638c93dd ("nfp: add port state refresh")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Sun, 23 Apr 2017 03:17:55 +0000 (20:17 -0700)]
nfp: fix free list buffer size reporting
XDP headroom should not be included in free list buffer size.
Fixes:
6fe0c3b43804 ("nfp: add support for xdp_adjust_head()")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Brunecz [Sun, 23 Apr 2017 03:17:54 +0000 (20:17 -0700)]
nfp: add NSP routine to get static information
Retrieve identifying information from the NSP. For now it only
contains versions of firmware subcomponents.
Signed-off-by: David Brunecz <david.brunecz@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Sun, 23 Apr 2017 03:17:53 +0000 (20:17 -0700)]
nfp: parse metadata prepend before XDP runs
Calling memcpy to shift metadata out of the way for XDP to run
seems like an overkill. The most common metadata contents are
8 bytes containing type and flow hash. Simply parse the metadata
before we run XDP.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Sun, 23 Apr 2017 03:17:52 +0000 (20:17 -0700)]
nfp: make use of the DMA_ATTR_SKIP_CPU_SYNC attr
DMA unmap may destroy changes CPU made to the buffer. To make XDP
run correctly on non-x86 platforms we should use the
DMA_ATTR_SKIP_CPU_SYNC attribute.
Thanks to using the attribute we can now push the sync operation to the
common code path from XDP handler.
A little bit of variable name reshuffling is required to bring the
code back to readable state.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 18:30:47 +0000 (14:30 -0400)]
Merge branch 'cls_flower-MPLS'
Benjamin LaHaise says:
====================
flower: add MPLS matching support
This patch series adds support for parsing MPLS flows in the flow dissector
and the flower classifier. Each of the MPLS TTL, BOS, TC and Label fields
can be used for matching.
v2: incorporate style feedback, move #defines to linux/include/mpls.h
Note: this omits Jiri's request to remove tabs between the type and
field names in struct declarations. This would be inconsistent with
numerous other struct definitions.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Benjamin LaHaise [Sat, 22 Apr 2017 20:52:47 +0000 (16:52 -0400)]
cls_flower: add support for matching MPLS fields (v2)
Add support to the tc flower classifier to match based on fields in MPLS
labels (TTL, Bottom of Stack, TC field, Label).
Signed-off-by: Benjamin LaHaise <benjamin.lahaise@netronome.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Simon Horman <simon.horman@netronome.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Hadar Hen Zion <hadarh@mellanox.com>
Cc: Gao Feng <fgao@ikuai8.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Benjamin LaHaise [Sat, 22 Apr 2017 20:52:46 +0000 (16:52 -0400)]
flow_dissector: add mpls support (v2)
Add support for parsing MPLS flows to the flow dissector in preparation for
adding MPLS match support to cls_flower.
Signed-off-by: Benjamin LaHaise <benjamin.lahaise@netronome.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Simon Horman <simon.horman@netronome.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Eric Dumazet <jhs@mojatatu.com>
Cc: Hadar Hen Zion <hadarh@mellanox.com>
Cc: Gao Feng <fgao@ikuai8.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 18:27:18 +0000 (14:27 -0400)]
Merge branch 'tcp-fastopen-middlebox-fixes'
Wei Wang says:
====================
net/tcp_fastopen: Fix for various TFO firewall issues
Currently there are still some firewall issues in the middlebox
which make the middlebox drop packets silently for TFO sockets.
This kind of issue is hard to be detected by the end client.
This patch series tries to detect such issues in the kernel and disable
TFO temporarily.
More details about the issues and the fixes are included in the following
patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Wang [Thu, 20 Apr 2017 21:45:48 +0000 (14:45 -0700)]
net/tcp_fastopen: Remove mss check in tcp_write_timeout()
Christoph Paasch from Apple found another firewall issue for TFO:
After successful 3WHS using TFO, server and client starts to exchange
data. Afterwards, a 10s idle time occurs on this connection. After that,
firewall starts to drop every packet on this connection.
The fix for this issue is to extend existing firewall blackhole detection
logic in tcp_write_timeout() by removing the mss check.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Wang [Thu, 20 Apr 2017 21:45:47 +0000 (14:45 -0700)]
net/tcp_fastopen: Add snmp counter for blackhole detection
This counter records the number of times the firewall blackhole issue is
detected and active TFO is disabled.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Wang [Thu, 20 Apr 2017 21:45:46 +0000 (14:45 -0700)]
net/tcp_fastopen: Disable active side TFO in certain scenarios
Middlebox firewall issues can potentially cause server's data being
blackholed after a successful 3WHS using TFO. Following are the related
reports from Apple:
https://www.nanog.org/sites/default/files/Paasch_Network_Support.pdf
Slide 31 identifies an issue where the client ACK to the server's data
sent during a TFO'd handshake is dropped.
C ---> syn-data ---> S
C <--- syn/ack ----- S
C (accept & write)
C <---- data ------- S
C ----- ACK -> X S
[retry and timeout]
https://www.ietf.org/proceedings/94/slides/slides-94-tcpm-13.pdf
Slide 5 shows a similar situation that the server's data gets dropped
after 3WHS.
C ---- syn-data ---> S
C <--- syn/ack ----- S
C ---- ack --------> S
S (accept & write)
C? X <- data ------ S
[retry and timeout]
This is the worst failure b/c the client can not detect such behavior to
mitigate the situation (such as disabling TFO). Failing to proceed, the
application (e.g., SSL library) may simply timeout and retry with TFO
again, and the process repeats indefinitely.
The proposed solution is to disable active TFO globally under the
following circumstances:
1. client side TFO socket detects out of order FIN
2. client side TFO socket receives out of order RST
We disable active side TFO globally for 1hr at first. Then if it
happens again, we disable it for 2h, then 4h, 8h, ...
And we reset the timeout to 1hr if a client side TFO sockets not opened
on loopback has successfully received data segs from server.
And we examine this condition during close().
The rational behind it is that when such firewall issue happens,
application running on the client should eventually close the socket as
it is not able to get the data it is expecting. Or application running
on the server should close the socket as it is not able to receive any
response from client.
In both cases, out of order FIN or RST will get received on the client
given that the firewall will not block them as no data are in those
frames.
And we want to disable active TFO globally as it helps if the middle box
is very close to the client and most of the connections are likely to
fail.
Also, add a debug sysctl:
tcp_fastopen_blackhole_detect_timeout_sec:
the initial timeout to use when firewall blackhole issue happens.
This can be set and read.
When setting it to 0, it means to disable the active disable logic.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 18:11:10 +0000 (14:11 -0400)]
Merge tag 'mlx5-updates-2017-04-22' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2017-04-22
Sparse and compiler warnings fixes from Stephen Hemminger.
From Roi Dayan and Or Gerlitz, Add devlink and mlx5 support for controlling
E-Switch encapsulation mode, this knob will enable HW support for applying
encapsulation/decapsulation to VF traffic as part of SRIOV e-switch offloading.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Sat, 22 Apr 2017 16:33:16 +0000 (09:33 -0700)]
net: add rcu locking when changing early demux
systemd-sysctl is triggering a suspicious RCU usage message when
net.ipv4.tcp_early_demux or net.ipv4.udp_early_demux is changed via
a sysctl config file:
[ 33.896184] ===============================
[ 33.899558] [ ERR: suspicious RCU usage. ]
[ 33.900624] 4.11.0-rc7+ #104 Not tainted
[ 33.901698] -------------------------------
[ 33.903059] /home/dsa/kernel-2.git/net/ipv4/sysctl_net_ipv4.c:305 suspicious rcu_dereference_check() usage!
[ 33.905724]
other info that might help us debug this:
[ 33.907656]
rcu_scheduler_active = 2, debug_locks = 0
[ 33.909288] 1 lock held by systemd-sysctl/143:
[ 33.910373] #0: (sb_writers#5){.+.+.+}, at: [<
ffffffff8123a370>] file_start_write+0x45/0x48
[ 33.912407]
stack backtrace:
[ 33.914018] CPU: 0 PID: 143 Comm: systemd-sysctl Not tainted 4.11.0-rc7+ #104
[ 33.915631] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 33.917870] Call Trace:
[ 33.918431] dump_stack+0x81/0xb6
[ 33.919241] lockdep_rcu_suspicious+0x10f/0x118
[ 33.920263] proc_configure_early_demux+0x65/0x10a
[ 33.921391] proc_udp_early_demux+0x3a/0x41
add rcu locking to proc_configure_early_demux.
Fixes:
dddb64bcb3461 ("net: Add sysctl to toggle early demux for tcp and udp")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 18:05:40 +0000 (14:05 -0400)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2017-04-22
Here are some more Bluetooth patches (and one 802.15.4 patch) in the
bluetooth-next tree targeting the 4.12 kernel. Most of them are pure
fixes.
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Sat, 22 Apr 2017 12:22:01 +0000 (13:22 +0100)]
net: netcp: fix spelling mistake: "memomry" -> "memory"
Trivial fix to spelling mistake in dev_err message and rejoin
line.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Geliang Tang [Sat, 22 Apr 2017 01:21:10 +0000 (09:21 +0800)]
net: atheros: atl1: use offset_in_page() macro
Use offset_in_page() macro instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 17:54:48 +0000 (13:54 -0400)]
Merge branch 'bnxt_en-misc-next'
Michael Chan says:
====================
bnxt_en: Updates for net-next.
Miscellaneous updates include passing DCBX RoCE VLAN priority to firmware,
checking one more new firmware flag before allowing DCBX to run on the host,
adding 100Gbps speed support, adding check to disallow speed settings on
Multi-host NICs, and a minor fix for reporting VF attributes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Deepak Khungar [Sat, 22 Apr 2017 00:11:26 +0000 (20:11 -0400)]
bnxt_en: Restrict a PF in Multi-Host mode from changing port PHY configuration
This change restricts the PF in multi-host mode from setting any port
level PHY configuration. The settings are controlled by firmware in
Multi-Host mode.
Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sat, 22 Apr 2017 00:11:25 +0000 (20:11 -0400)]
bnxt_en: Check the FW_LLDP_AGENT flag before allowing DCBX host agent.
Check the additional flag in bnxt_hwrm_func_qcfg() before allowing
DCBX to be done in host mode.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Deepak Khungar [Sat, 22 Apr 2017 00:11:24 +0000 (20:11 -0400)]
bnxt_en: Add 100G link speed reporting for BCM57454 ASIC in ethtool
Added support for 100G link speed reporting for Broadcom BCM57454
ASIC in ethtool command.
Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sat, 22 Apr 2017 00:11:23 +0000 (20:11 -0400)]
bnxt_en: Fix VF attributes reporting.
The .ndo_get_vf_config() is returning the wrong qos attribute. Fix
the code that checks and reports the qos and spoofchk attributes. The
BNXT_VF_QOS and BNXT_VF_LINK_UP flags should not be set by default
during init. time.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sat, 22 Apr 2017 00:11:22 +0000 (20:11 -0400)]
bnxt_en: Pass DCB RoCE app priority to firmware.
When the driver gets the RoCE app priority set/delete call through DCBNL,
the driver will send the information to the firmware to set up the
priority VLAN tag for RDMA traffic.
[ New version using the common ETH_P_IBOE constant in if_ether.h ]
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarno Rajahalme [Fri, 21 Apr 2017 23:48:06 +0000 (16:48 -0700)]
openvswitch: Add eventmask support to CT action.
Add a new optional conntrack action attribute OVS_CT_ATTR_EVENTMASK,
which can be used in conjunction with the commit flag
(OVS_CT_ATTR_COMMIT) to set the mask of bits specifying which
conntrack events (IPCT_*) should be delivered via the Netfilter
netlink multicast groups. Default behavior depends on the system
configuration, but typically a lot of events are delivered. This can be
very chatty for the NFNLGRP_CONNTRACK_UPDATE group, even if only some
types of events are of interest.
Netfilter core init_conntrack() adds the event cache extension, so we
only need to set the ctmask value. However, if the system is
configured without support for events, the setting will be skipped due
to extension not being found.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarno Rajahalme [Fri, 21 Apr 2017 23:48:05 +0000 (16:48 -0700)]
openvswitch: Typo fix.
Fix typo in a comment.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 16:52:15 +0000 (12:52 -0400)]
Merge branch 'ibmvnic-updates-and-fixes'
Nathan Fontenot says:
====================
ibmvnic: Additional updates and bug fixes
This set of patches is an additional set of updates and bug fixes to
the ibmvnic driver which applies on top of the previous set of updates
sent out on 4/19.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon [Fri, 21 Apr 2017 19:39:16 +0000 (15:39 -0400)]
ibmvnic: Free skb's in cases of failure in transmit
When an error is encountered during transmit we need to free the
skb instead of returning TX_BUSY.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Fontenot [Fri, 21 Apr 2017 19:39:10 +0000 (15:39 -0400)]
ibmvnic: Validate napi exist before disabling them
Validate that the napi structs exist before trying to disable them
at driver close.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Fontenot [Fri, 21 Apr 2017 19:39:04 +0000 (15:39 -0400)]
ibmvnic: Add set_link_state routine for setting adapter link state
Create a common routine for setting the link state for the vnic adapter.
This update moves the sending of the crq and waiting for the link state
response to a common place. The new routine also adds handling of
resending the crq in cases of getting a partial success response.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Fontenot [Fri, 21 Apr 2017 19:38:58 +0000 (15:38 -0400)]
ibmvnic: Move initialization of the stats token to ibmvnic_open
We should be initializing the stats token in the same place we
initialize the other resources for the driver.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Fontenot [Fri, 21 Apr 2017 19:38:52 +0000 (15:38 -0400)]
ibmvnic: Only retrieve error info if present
When handling a fatal error in the driver, there can be additional
error information provided by the vios. This information is not
always present, so only retrieve the additional error information
when present.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Murilo Fossa Vicentini [Fri, 21 Apr 2017 19:38:46 +0000 (15:38 -0400)]
ibmvnic: Insert header on VLAN tagged received frame
This patch addresses a modification in the PAPR+ specification which now
defines a previously reserved value for vNIC capabilities. It indicates
whether the system firmware performs a VLAN header stripping on all VLAN
tagged received frames, in case it does, the behavior expected is for
the ibmvnic driver to be responsible for inserting the VLAN header.
Reported-by: Manvanthara B. Puttashankar <mputtash@in.ibm.com>
Signed-off-by: Murilo Fossa Vicentini <muvic@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon [Fri, 21 Apr 2017 19:38:40 +0000 (15:38 -0400)]
ibmvnic: Set real number of rx queues
Along with 5 TX queues, 5 RX queues are allocated at the beginning of
device probe. However, only the real number of TX queues is set. Configure
the real number of RX queues as well.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 16:46:28 +0000 (12:46 -0400)]
Merge branch 'packet-fanout-unique-id'
Mike Maloney says:
====================
packet: Add option to create new fanout group with unique id.
Fanout uses a per net global namespace. A process that intends to create a
new fanout group can accidentally join an existing group. It is
not possible to detect this.
Add a socket option to specify on the first call to
setsockopt(..., PACKET_FANOUT, ...) to ensure that a new group is created.
Also add tests.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Maloney [Fri, 21 Apr 2017 14:56:12 +0000 (10:56 -0400)]
selftests/net: add tests for PACKET_FANOUT_FLAG_UNIQUEID
Create two groups with PACKET_FANOUT_FLAG_UNIQUEID, add a socket to one.
Ensure that the groups can only be joined if all options are consistent
with the original except for this flag.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Maloney [Fri, 21 Apr 2017 14:56:11 +0000 (10:56 -0400)]
packet: add PACKET_FANOUT_FLAG_UNIQUEID to assign new fanout group id.
Fanout uses a per net global namespace. A process that intends to create
a new fanout group can accidentally join an existing group. It is not
possible to detect this.
Add socket option PACKET_FANOUT_FLAG_UNIQUEID. When specified the
supplied fanout group id must be set to 0, and the kernel chooses an id
that is not already in use. This is an ephemeral flag so that
other sockets can be added to this group using setsockopt, but NOT
specifying this flag. The current getsockopt(..., PACKET_FANOUT, ...)
can be used to retrieve the new group id.
We assume that there are not a lot of fanout groups and that this is not
a high frequency call.
The method assigns ids starting at zero and increases until it finds an
unused id. It keeps track of the last assigned id, and uses it as a
starting point to find new ids.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Maloney [Fri, 21 Apr 2017 14:56:10 +0000 (10:56 -0400)]
selftests/net: cleanup unused parameter in psock_fanout
sock_fanout_open no longer sets the size of packet_socket ring, so stop
passing the parameter.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roger Quadros [Fri, 21 Apr 2017 13:15:38 +0000 (16:15 +0300)]
mdio_bus: Issue GPIO RESET to PHYs.
Some boards [1] leave the PHYs at an invalid state
during system power-up or reset thus causing unreliability
issues with the PHY which manifests as PHY not being detected
or link not functional. To fix this, these PHYs need to be RESET
via a GPIO connected to the PHY's RESET pin.
Some boards have a single GPIO controlling the PHY RESET pin of all
PHYs on the bus whereas some others have separate GPIOs controlling
individual PHY RESETs.
In both cases, the RESET de-assertion cannot be done in the PHY driver
as the PHY will not probe till its reset is de-asserted.
So do the RESET de-assertion in the MDIO bus driver.
[1] - am572x-idk, am571x-idk, a437x-idk
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 16:35:57 +0000 (12:35 -0400)]
Merge branch 'VSOCK-add-vsockmon'
Stefan Hajnoczi says:
====================
VSOCK: vsockmon virtual device to monitor AF_VSOCK sockets.
v5:
* Change vsock_deliver_tap() API to avoid unnecessary skb creation
[Jorgen]
* Fix skb leak when no taps are registered [Jorgen]
* s/cpu_to_le16(pkt->hdr.op)/le16_to_cpu(pkt->hdr.op)/ [Michael]
* Add af_vsock_tap.c and vsockmon.[ch] to MAINTAINERS
* checkpatch.pl and sparse fixes
v4:
* Add explicit reserved padding field to struct af_vsockmon_hdr and
drop __attribute__((packed)) [Michael, DaveM]
* Call synchronize_net() before module_put() [Michael]
v3:
* Hook virtio_transport.c (guest driver), not just drivers/vhost/vsock.c (host
driver)
* Fix DEFAULT_MTU macro definition [Zhu Yanjun]
* Rename af_vsockmon_hdr->t field ->transport for clarity
* Update .ndo_get_stats64() return type since it has changed
* Include missing <linux/module.h> header in af_vsock_tap.c
This is a continuation of Gerard Garcia's work on the vsockmon packet capture
interface for AF_VSOCK. Packet capture is an essential feature for network
communication. Gerard began addressing this feature gap in his Google Summer
of Code 2016 project. I have cleaned up, rebased, and retested the v2 series
he posted previously.
The design follows the nlmon packet capture interface closely. This is because
vsock has the same problem as netlink: there is no netdev on which packets can
be captured. The nlmon driver is a synthetic netdev purely for the purpose of
enabling packet capture. We follow the same approach here with vsockmon.
See include/uapi/linux/vsockmon.h in this series for details on the packet
layout.
How to try it:
1. Build tcpdump with vsockmon patches:
$ git clone -b vsock https://github.com/stefanha/libpcap
$ (cd libcap && ./configure && make)
$ git clone -b vsock https://github.com/stefanha/tcpdump
$ (cd tcpdump && ./configure && make)
2. Build nc-vsock (a netcat-like tool):
$ git clone https://github.com/stefanha/nc-vsock
$ (cd nc-vsock && make)
3. Launch a virtual machine:
# modprobe vhost_vsock
# qemu-system-x86_64 -M accel=kvm -m 1024 -cpu host \
-drive if=virtio,file=test.img,format=raw \
-device vhost-vsock-pci,guest-cid=3
(Assumes guest is running a kernel with this patch)
4. Capture AF_VSOCK traffic in guest and/or host:
# modprobe vsockmon
# ip link add type vsockmon
# ip link set vsockmon0 up
# tcpdump -i vsockmon0 -vvv
5. Communicate!
(host)$ nc-vsock -l 1234
(guest)$ nc-vsock 2 1234
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerard Garcia [Fri, 21 Apr 2017 09:10:46 +0000 (10:10 +0100)]
VSOCK: Add virtio vsock vsockmon hooks
The virtio drivers deal with struct virtio_vsock_pkt. Add
virtio_transport_deliver_tap_pkt(pkt) for handing packets to the
vsockmon device.
We call virtio_transport_deliver_tap_pkt(pkt) from
net/vmw_vsock/virtio_transport.c and drivers/vhost/vsock.c instead of
common code. This is because the drivers may drop packets before
handing them to common code - we still want to capture them.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerard Garcia [Fri, 21 Apr 2017 09:10:45 +0000 (10:10 +0100)]
VSOCK: Add vsockmon device
Add vsockmon virtual network device that receives packets from the vsock
transports and exposes them to user space.
Based on the nlmon device.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerard Garcia [Fri, 21 Apr 2017 09:10:44 +0000 (10:10 +0100)]
VSOCK: Add vsockmon tap functions
Add tap functions that can be used by the vsock transports to
deliver packets to vsockmon virtual network devices.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 16:25:01 +0000 (12:25 -0400)]
Merge tag 'wireless-drivers-next-for-davem-2017-04-21' of git://git./linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.12
Quite a lot of patches for rtlwifi and iwlwifi this time, but changes
also for other active wireless drivers.
Major changes:
ath9k
* add support for Dell Wireless 1601 PCI device
* add debugfs file to manually override noise floor
ath10k
* bump up FW API to 6 for a new QCA6174 firmware branch
wil6210
* support 8 kB RX buffers
iwlwifi
* work to support A000 devices continues
* add support for FW API 30
* add Geographical and Dynamic Specific Absorption Rate (SAR) support
* support a few new PCI device IDs
rtlwifi
* work on adding Bluetooth coexistance support, not finished yet
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 16:20:05 +0000 (12:20 -0400)]
Merge branch 'qed-dcb-enhancements'
Sudarsana Reddy Kalluru says:
====================
qed*: Dcbx/dcbnl enhancements.
The series has set of enhancements for dcbx/dcbnl implementation of
qed/qede drivers.
- Patches (1) & (3) capture the sematic and debug changes.
- Patch (2) adds the driver support for populating RoCEv2 dcb data.
- Patch (4) adds the required support for reading/configuring the
IEEE selection field (SF).
- Patch (5) adds the support for configuring the static dcbx mode.
Please consider applying this to 'net-next' branch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
sudarsana.kalluru@cavium.com [Fri, 21 Apr 2017 05:31:20 +0000 (22:31 -0700)]
qed: Add support for static dcbx.
The patch adds driver support for static/local dcbx mode. In this mode
adapter brings up the dcbx link with locally configured parameters
instead of performing the dcbx negotiation with the peer. The feature
is useful when peer device/switch doesn't support dcbx.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sudarsana.kalluru@cavium.com [Fri, 21 Apr 2017 05:31:19 +0000 (22:31 -0700)]
qed: Support dcbnl IEEE selector field.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sudarsana.kalluru@cavium.com [Fri, 21 Apr 2017 05:31:18 +0000 (22:31 -0700)]
qed: Add additional DCBx debug messages.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sudarsana.kalluru@cavium.com [Fri, 21 Apr 2017 05:31:17 +0000 (22:31 -0700)]
qed: Separate RoCE DCBx support for V2.
In the older firmware there was no distinction between RoCE and RoCEv2
whereas the newer firmware (8.15.3.0) allows us to configure each
independently. Driver need to populate the RoCEv2 data in its specific
structure.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sudarsana.kalluru@cavium.com [Fri, 21 Apr 2017 05:31:16 +0000 (22:31 -0700)]
qed: Cleanup DCBx unnecessary parameters.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 24 Apr 2017 15:53:53 +0000 (11:53 -0400)]
Merge branch '1GbE' of git://git./linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
1GbE Intel Wired LAN Driver Updates 2017-04-20
This series contains updates to e1000, e1000e, igb/vf and ixgb.
Tobias Klauser cleans up e1000, ixgb and igbvf from having a local
function or structure for netdev stats.
Bernd Faust fixes an issue for 82579 devices, where the clock frequency
was being incorrectly set for these devices. These devices only support
96MHz, so make sure they are set to use only that.
Yury Kylulin extends the work Jake and Alex did for ixgbe in MAC filter
handling into the igb driver.
Kim Tatt Chuah enables igb to wake up by packet and to read the necessary
Wake Up Status (WUS) and Wake Up Packet Memory (WUPM) registers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Sun, 23 Apr 2017 16:01:00 +0000 (09:01 -0700)]
bpf, doc: update list of architectures that do eBPF JIT
update the list and remove 'in the future' statement,
since all still alive 64-bit architectures now do eBPF JIT.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 22 Apr 2017 19:31:05 +0000 (12:31 -0700)]
bpf: Add sparc support to tools and samples.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
David S. Miller [Tue, 18 Apr 2017 01:44:36 +0000 (18:44 -0700)]
sparc64: Add eBPF JIT.
This is an eBPF JIT for sparc64. All major features are supported.
All tests under tools/testing/selftests/bpf/ pass.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 18 Apr 2017 01:25:07 +0000 (18:25 -0700)]
sparc: Split BPF JIT into 32-bit and 64-bit.
This is in preparation for adding the 64-bit eBPF JIT.
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Hemminger [Fri, 21 Apr 2017 18:15:57 +0000 (11:15 -0700)]
mlx5: fix warning about missing prototype
Fix sparse warning about missing prototypes. The rx/tx code path
defines functions with prototypes in ipoib.h.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Stephen Hemminger [Fri, 21 Apr 2017 18:15:56 +0000 (11:15 -0700)]
mlx5: hide unused functions
Fix sparse warnings in recent ipoib support.
The RDMA functions are not used yet, hide behind #ifdef.
Based on comment, they will eventually be local so make static.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Sun, 25 Sep 2016 11:27:17 +0000 (14:27 +0300)]
net/mlx5: E-Switch, Add control for encapsulation
Implement the devlink e-switch encapsulation control set and get
callbacks. Apply the value set by the user on the switchdev offloads
mode when creating the fast FDB table where offloaded rules will be set.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Wed, 15 Feb 2017 10:13:02 +0000 (12:13 +0200)]
net/mlx5: E-Switch, Refactor fast path FDB table creation in switchdev mode
Refactor the creation of the fast path FDB table that holds the
offloaded rules in SRIOV switchdev mode into it's own function.
This will be used in the next patch to be able and re-create the
table under different settings without going through legacy mode.
This patch doesn't change any functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Sun, 25 Sep 2016 10:52:44 +0000 (13:52 +0300)]
net/devlink: Add E-Switch encapsulation control
This is an e-switch global knob to enable HW support for applying
encapsulation/decapsulation to VF traffic as part of SRIOV e-switch offloading.
The actual encap/decap is carried out (along with the matching and other actions)
per offloaded e-switch rules, e.g as done when offloading the TC tunnel key action.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Dean Jenkins [Thu, 20 Apr 2017 17:06:41 +0000 (18:06 +0100)]
Bluetooth: hci_ldisc: Add missing clear HCI_UART_PROTO_READY
Ensure that HCI_UART_PROTO_READY is cleared before close(hu) is
called which closes the Data Link protocol layer.
Therefore, add the missing bit clear of HCI_UART_PROTO_READY to
hci_uart_init_work() so that the flag is cleared when
hci_register_dev fails.
Without the fix, the functions of the Data Link protocol layer could
potentially be accessed after that layer has been closed. This
could lead to a crash as memory would have been freed in that layer.
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Dean Jenkins [Thu, 20 Apr 2017 17:06:40 +0000 (18:06 +0100)]
Bluetooth: hci_ldisc: Ensure hu->hdev set to NULL before freeing hdev
When hci_register_dev() fails, hu->hdev should be set to NULL before
freeing hdev. This avoids potential use of hu->hdev after it has been
freed.
This commit sets hu->hdev to NULL before calling hci_free_dev() in error
handling scenarios in hci_uart_init_work() and hci_uart_register_dev().
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Dean Jenkins [Thu, 20 Apr 2017 17:06:39 +0000 (18:06 +0100)]
Bluetooth: hci_ldisc: Add missing return in hci_uart_init_work()
If hci_register_dev() returns an error in hci_uart_init_work()
then the HCI_UART_REGISTERED bit gets erroneously set due to
a missing return statement. Therefore, add the missing return
statement.
The consequence of the missing return is that the HCI UART is not
registered but HCI_UART_REGISTERED is set which allows the code
to think that hu->hdev is safe to access but hu->hdev has been
freed so could lead to a crash.
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Arnd Bergmann [Wed, 19 Apr 2017 17:32:25 +0000 (19:32 +0200)]
ieee802154: don't select COMMON_CLK
A device driver must not select the COMMON_CLK subsystem, as that conflicts
with platforms that provide a legacy implementation of the clk API:
drivers/clk/clk.o: In function `clk_enable':
clk.c:(.text.clk_enable+0x0): multiple definition of `clk_enable'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_enable+0x0): first defined here
drivers/clk/clk.o: In function `clk_round_rate':
clk.c:(.text.clk_round_rate+0x0): multiple definition of `clk_round_rate'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_round_rate+0x0): first defined here
drivers/clk/clk.o: In function `clk_get_parent':
clk.c:(.text.clk_get_parent+0x0): multiple definition of `clk_get_parent'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_get_parent+0x0): first defined here
drivers/clk/clk.o: In function `clk_get_rate':
clk.c:(.text.clk_get_rate+0x0): multiple definition of `clk_get_rate'
This changes the 'select' into 'depends on', as all other similar drivers do.
Fixes:
d931acd575d6 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Arnd Bergmann [Wed, 19 Apr 2017 17:50:18 +0000 (19:50 +0200)]
Bluetooth: try to improve CONFIG_SERIAL_DEV_BUS dependency
With CONFIG_SERIAL_DEV_BUS=m, the hci_serdev.o file does not actually
get built into hci_uart.o as the Makefile doesn't pick it up, leading
to a link error with anything referring to it:
ERROR: "hci_uart_register_device" [drivers/bluetooth/hci_nokia.ko] undefined!
scripts/Makefile.modpost:91: recipe for target '__modpost' failed
Changing this in the Makefile would cause another problem when
hci_uart itself is built-in and cannot reference symbols from the
serdev module.
This tries to address both problems by introducing a new hidden
Kconfig symbol that controls both the compilation of hci_serdev.o
and whether the Nokia driver can be selected. This seems to address
the problem for me, though there might be a better way to do it.
Fixes:
7bb318680e86 ("Bluetooth: add nokia driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Sebastian Reichel [Sat, 15 Apr 2017 21:54:13 +0000 (23:54 +0200)]
Bluetooth: hci_ll: Fix NULL pointer deref on FW upload failure
Avoid NULL pointer dereference occurring due to freeing
skb containing an error pointer. It can easily be triggered
by using the driver with broken uart (i.e. due to misconfigured
pinmuxing).
Fixes:
371805522f87 ("bluetooth: hci_uart: add LL protocol serdev driver support")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
David S. Miller [Sat, 22 Apr 2017 03:23:53 +0000 (20:23 -0700)]
Merge git://git./linux/kernel/git/davem/net
Both conflict were simple overlapping changes.
In the kaweth case, Eric Dumazet's skb_cow() bug fix overlapped the
conversion of the driver in net-next to use in-netdev stats.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 21 Apr 2017 23:37:48 +0000 (16:37 -0700)]
Merge tag 'nfsd-4.11-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfix from Bruce Fields:
"Fix a 4.11 regression that triggers a BUG() on an attempt to use an
unsupported NFSv4 compound op"
* tag 'nfsd-4.11-2' of git://linux-nfs.org/~bfields/linux:
nfsd: fix oops on unsupported operation
Linus Torvalds [Fri, 21 Apr 2017 20:20:47 +0000 (13:20 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Don't race in IPSEC dumps, from Yuejie Shi.
2) Verify lengths properly in IPSEC reqeusts, from Herbert Xu.
3) Fix out of bounds access in ipv6 segment routing code, from David
Lebrun.
4) Don't write into the header of cloned SKBs in smsc95xx driver, from
James Hughes.
5) Several other drivers have this bug too, fix them. From Eric
Dumazet.
6) Fix access to uninitialized data in TC action cookie code, from
Wolfgang Bumiller.
7) Fix double free in IPV6 segment routing, again from David Lebrun.
8) Don't let userspace set the RTF_PCPU flag, oops. From David Ahern.
9) Fix use after free in qrtr code, from Dan Carpenter.
10) Don't double-destroy devices in ip6mr code, from Nikolay
Aleksandrov.
11) Don't pass out-of-range TX queue indices into drivers, from Tushar
Dave.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
netpoll: Check for skb->queue_mapping
ip6mr: fix notification device destruction
bpf, doc: update bpf maintainers entry
net: qrtr: potential use after free in qrtr_sendmsg()
bpf: Fix values type used in test_maps
net: ipv6: RTF_PCPU should not be settable from userspace
gso: Validate assumption of frag_list segementation
kaweth: use skb_cow_head() to deal with cloned skbs
ch9200: use skb_cow_head() to deal with cloned skbs
lan78xx: use skb_cow_head() to deal with cloned skbs
sr9700: use skb_cow_head() to deal with cloned skbs
cx82310_eth: use skb_cow_head() to deal with cloned skbs
smsc75xx: use skb_cow_head() to deal with cloned skbs
ipv6: sr: fix double free of skb after handling invalid SRH
MAINTAINERS: Add "B:" field for networking.
net sched actions: allocate act cookie early
qed: Fix issue in populating the PFC config paramters.
qed: Fix possible system hang in the dcbnl-getdcbx() path.
qed: Fix sending an invalid PFC error mask to MFW.
qed: Fix possible error in populating max_tc field.
...
David S. Miller [Fri, 21 Apr 2017 19:59:52 +0000 (15:59 -0400)]
net: Remove NET_CORE_BUDGET_USECS from sysctl binary interface.
We are not supposed to add new entries to this thing
any more.
Thanks to Eric Dumazet for noticing this.
Signed-off-by: David S. Miller <davem@davemloft.net>
Tushar Dave [Thu, 20 Apr 2017 22:57:31 +0000 (15:57 -0700)]
netpoll: Check for skb->queue_mapping
Reducing real_num_tx_queues needs to be in sync with skb queue_mapping
otherwise skbs with queue_mapping greater than real_num_tx_queues
can be sent to the underlying driver and can result in kernel panic.
One such event is running netconsole and enabling VF on the same
device. Or running netconsole and changing number of tx queues via
ethtool on same device.
e.g.
Unable to handle kernel NULL pointer dereference
tsk->{mm,active_mm}->context =
0000000000001525
tsk->{mm,active_mm}->pgd =
fff800130ff9a000
\|/ ____ \|/
"@'/ .. \`@"
/_| \__/ |_\
\__U_/
kworker/48:1(475): Oops [#1]
CPU: 48 PID: 475 Comm: kworker/48:1 Tainted: G OE
4.11.0-rc3-davem-net+ #7
Workqueue: events queue_process
task:
fff80013113299c0 task.stack:
fff800131132c000
TSTATE:
0000004480e01600 TPC:
00000000103f9e3c TNPC:
00000000103f9e40 Y:
00000000 Tainted: G OE
TPC: <ixgbe_xmit_frame_ring+0x7c/0x6c0 [ixgbe]>
g0:
0000000000000000 g1:
0000000000003fff g2:
0000000000000000 g3:
0000000000000001
g4:
fff80013113299c0 g5:
fff8001fa6808000 g6:
fff800131132c000 g7:
00000000000000c0
o0:
fff8001fa760c460 o1:
fff8001311329a50 o2:
fff8001fa7607504 o3:
0000000000000003
o4:
fff8001f96e63a40 o5:
fff8001311d77ec0 sp:
fff800131132f0e1 ret_pc:
000000000049ed94
RPC: <set_next_entity+0x34/0xb80>
l0:
0000000000000000 l1:
0000000000000800 l2:
0000000000000000 l3:
0000000000000000
l4:
000b2aa30e34b10d l5:
0000000000000000 l6:
0000000000000000 l7:
fff8001fa7605028
i0:
fff80013111a8a00 i1:
fff80013155a0780 i2:
0000000000000000 i3:
0000000000000000
i4:
0000000000000000 i5:
0000000000100000 i6:
fff800131132f1a1 i7:
00000000103fa4b0
I7: <ixgbe_xmit_frame+0x30/0xa0 [ixgbe]>
Call Trace:
[
00000000103fa4b0] ixgbe_xmit_frame+0x30/0xa0 [ixgbe]
[
0000000000998c74] netpoll_start_xmit+0xf4/0x200
[
0000000000998e10] queue_process+0x90/0x160
[
0000000000485fa8] process_one_work+0x188/0x480
[
0000000000486410] worker_thread+0x170/0x4c0
[
000000000048c6b8] kthread+0xd8/0x120
[
0000000000406064] ret_from_fork+0x1c/0x2c
[
0000000000000000] (null)
Disabling lock debugging due to kernel taint
Caller[
00000000103fa4b0]: ixgbe_xmit_frame+0x30/0xa0 [ixgbe]
Caller[
0000000000998c74]: netpoll_start_xmit+0xf4/0x200
Caller[
0000000000998e10]: queue_process+0x90/0x160
Caller[
0000000000485fa8]: process_one_work+0x188/0x480
Caller[
0000000000486410]: worker_thread+0x170/0x4c0
Caller[
000000000048c6b8]: kthread+0xd8/0x120
Caller[
0000000000406064]: ret_from_fork+0x1c/0x2c
Caller[
0000000000000000]: (null)
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nikolay Aleksandrov [Fri, 21 Apr 2017 17:42:16 +0000 (20:42 +0300)]
ip6mr: fix notification device destruction
Andrey Konovalov reported a BUG caused by the ip6mr code which is caused
because we call unregister_netdevice_many for a device that is already
being destroyed. In IPv4's ipmr that has been resolved by two commits
long time ago by introducing the "notify" parameter to the delete
function and avoiding the unregister when called from a notifier, so
let's do the same for ip6mr.
The trace from Andrey:
------------[ cut here ]------------
kernel BUG at net/core/dev.c:6813!
invalid opcode: 0000 [#1] SMP KASAN
Modules linked in:
CPU: 1 PID: 1165 Comm: kworker/u4:3 Not tainted 4.11.0-rc7+ #251
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Workqueue: netns cleanup_net
task:
ffff880069208000 task.stack:
ffff8800692d8000
RIP: 0010:rollback_registered_many+0x348/0xeb0 net/core/dev.c:6813
RSP: 0018:
ffff8800692de7f0 EFLAGS:
00010297
RAX:
ffff880069208000 RBX:
0000000000000002 RCX:
0000000000000001
RDX:
0000000000000000 RSI:
0000000000000000 RDI:
ffff88006af90569
RBP:
ffff8800692de9f0 R08:
ffff8800692dec60 R09:
0000000000000000
R10:
0000000000000006 R11:
0000000000000000 R12:
ffff88006af90070
R13:
ffff8800692debf0 R14:
dffffc0000000000 R15:
ffff88006af90000
FS:
0000000000000000(0000) GS:
ffff88006cb00000(0000)
knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00007fe7e897d870 CR3:
00000000657e7000 CR4:
00000000000006e0
Call Trace:
unregister_netdevice_many.part.105+0x87/0x440 net/core/dev.c:7881
unregister_netdevice_many+0xc8/0x120 net/core/dev.c:7880
ip6mr_device_event+0x362/0x3f0 net/ipv6/ip6mr.c:1346
notifier_call_chain+0x145/0x2f0 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394
raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x51/0x90 net/core/dev.c:1647
call_netdevice_notifiers net/core/dev.c:1663
rollback_registered_many+0x919/0xeb0 net/core/dev.c:6841
unregister_netdevice_many.part.105+0x87/0x440 net/core/dev.c:7881
unregister_netdevice_many net/core/dev.c:7880
default_device_exit_batch+0x4fa/0x640 net/core/dev.c:8333
ops_exit_list.isra.4+0x100/0x150 net/core/net_namespace.c:144
cleanup_net+0x5a8/0xb40 net/core/net_namespace.c:463
process_one_work+0xc04/0x1c10 kernel/workqueue.c:2097
worker_thread+0x223/0x19c0 kernel/workqueue.c:2231
kthread+0x35e/0x430 kernel/kthread.c:231
ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
Code: 3c 32 00 0f 85 70 0b 00 00 48 b8 00 02 00 00 00 00 ad de 49 89
47 78 e9 93 fe ff ff 49 8d 57 70 49 8d 5f 78 eb 9e e8 88 7a 14 fe <0f>
0b 48 8b 9d 28 fe ff ff e8 7a 7a 14 fe 48 b8 00 00 00 00 00
RIP: rollback_registered_many+0x348/0xeb0 RSP:
ffff8800692de7f0
---[ end trace
e0b29c57e9b3292c ]---
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Fri, 21 Apr 2017 16:22:40 +0000 (18:22 +0200)]
net: dsa: LAN9303: add I2C dependency
With CONFIG_I2C=m and NET_DSA_SMSC_LAN9303=y, we run into a link error:
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_read':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_read+0x18): undefined reference to `i2c_smbus_read_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_write':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_write+0x18): undefined reference to `i2c_smbus_write_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_reg_read':
regmap-i2c.c:(.text.regmap_smbus_word_reg_read+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_read_swapped':
regmap-i2c.c:(.text.regmap_smbus_word_read_swapped+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_write_swapped':
This adds a Kconfig dependency to avoid the broken configuration.
Fixes:
be4e119f9914 ("net: dsa: LAN9303: add I2C managed mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 21 Apr 2017 19:29:40 +0000 (15:29 -0400)]
Merge tag 'nfc-next-4.12-1' of git://git./linux/kernel/git/sameo/nfc-next
Samuel Ortiz says:
====================
NFC 4.12 pull request
This is the NFC pull request for 4.12. We have:
- Improvements for the pn533 command queue handling and device
registration order.
- Removal of platform data for the pn544 and st21nfca drivers.
- Additional device tree options to support more trf7970a hardware options.
- Support for Sony's RC-S380P through the port100 driver.
- Removal of the obsolte nfcwilink driver.
- Headers inclusion cleanups (miscdevice.h, unaligned.h) for many drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mahesh Bandewar [Thu, 20 Apr 2017 19:49:24 +0000 (12:49 -0700)]
bonding: fix wq initialization for links created via netlink
Earlier patch
4493b81bea ("bonding: initialize work-queues during
creation of bond") moved the work-queue initialization from bond_open()
to bond_create(). However this caused the link those are created using
netlink 'create bond option' (ip link add bondX type bond); create the
new trunk without initializing work-queues. Prior to the above mentioned
change, ndo_open was in both paths and things worked correctly. The
consequence is visible in the report shared by Joe Stringer -
I've noticed that this patch breaks bonding within namespaces if
you're not careful to perform device cleanup correctly.
Here's my repro script, you can run on any net-next with this patch
and you'll start seeing some weird behaviour:
ip netns add foo
ip li add veth0 type veth peer name veth0+ netns foo
ip li add veth1 type veth peer name veth1+ netns foo
ip netns exec foo ip li add bond0 type bond
ip netns exec foo ip li set dev veth0+ master bond0
ip netns exec foo ip li set dev veth1+ master bond0
ip netns exec foo ip addr add dev bond0 192.168.0.1/24
ip netns exec foo ip li set dev bond0 up
ip li del dev veth0
ip li del dev veth1
The second to last command segfaults, last command hangs. rtnl is now
permanently locked. It's not a problem if you take bond0 down before
deleting veths, or delete bond0 before deleting veths. If you delete
either end of the veth pair as per above, either inside or outside the
namespace, it hits this problem.
Here's some kernel logs:
[ 1221.801610] bond0: Enslaving veth0+ as an active interface with an up link
[ 1224.449581] bond0: Enslaving veth1+ as an active interface with an up link
[ 1281.193863] bond0: Releasing backup interface veth0+
[ 1281.193866] bond0: the permanent HWaddr of veth0+ -
16:bf:fb:e0:b8:43 - is still in use by bond0 - set the HWaddr of
veth0+ to a different address to avoid conflicts
[ 1281.193867] ------------[ cut here ]------------
[ 1281.193873] WARNING: CPU: 0 PID: 2024 at kernel/workqueue.c:1511
__queue_delayed_work+0x13f/0x150
[ 1281.193873] Modules linked in: bonding veth openvswitch nf_nat_ipv6
nf_nat_ipv4 nf_nat autofs4 nfsd auth_rpcgss nfs_acl binfmt_misc nfs
lockd grace sunrpc fscache ppdev vmw_balloon coretemp psmouse
serio_raw vmwgfx ttm drm_kms_helper vmw_vmci netconsole parport_pc
configfs drm i2c_piix4 fb_sys_fops syscopyarea sysfillrect sysimgblt
shpchp mac_hid nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4
nf_defrag_ipv4 nf_conntrack libcrc32c lp parport hid_generic usbhid
hid mptspi mptscsih e1000 mptbase ahci libahci
[ 1281.193905] CPU: 0 PID: 2024 Comm: ip Tainted: G W
4.10.0-bisect-bond-v0.14 #37
[ 1281.193906] Hardware name: VMware, Inc. VMware Virtual
Platform/440BX Desktop Reference Platform, BIOS 6.00 09/30/2014
[ 1281.193906] Call Trace:
[ 1281.193912] dump_stack+0x63/0x89
[ 1281.193915] __warn+0xd1/0xf0
[ 1281.193917] warn_slowpath_null+0x1d/0x20
[ 1281.193918] __queue_delayed_work+0x13f/0x150
[ 1281.193920] queue_delayed_work_on+0x27/0x40
[ 1281.193929] bond_change_active_slave+0x25b/0x670 [bonding]
[ 1281.193932] ? synchronize_rcu_expedited+0x27/0x30
[ 1281.193935] __bond_release_one+0x489/0x510 [bonding]
[ 1281.193939] ? addrconf_notify+0x1b7/0xab0
[ 1281.193942] bond_netdev_event+0x2c5/0x2e0 [bonding]
[ 1281.193944] ? netconsole_netdev_event+0x124/0x190 [netconsole]
[ 1281.193947] notifier_call_chain+0x49/0x70
[ 1281.193948] raw_notifier_call_chain+0x16/0x20
[ 1281.193950] call_netdevice_notifiers_info+0x35/0x60
[ 1281.193951] rollback_registered_many+0x23b/0x3e0
[ 1281.193953] unregister_netdevice_many+0x24/0xd0
[ 1281.193955] rtnl_delete_link+0x3c/0x50
[ 1281.193956] rtnl_dellink+0x8d/0x1b0
[ 1281.193960] rtnetlink_rcv_msg+0x95/0x220
[ 1281.193962] ? __kmalloc_node_track_caller+0x35/0x280
[ 1281.193964] ? __netlink_lookup+0xf1/0x110
[ 1281.193966] ? rtnl_newlink+0x830/0x830
[ 1281.193967] netlink_rcv_skb+0xa7/0xc0
[ 1281.193969] rtnetlink_rcv+0x28/0x30
[ 1281.193970] netlink_unicast+0x15b/0x210
[ 1281.193971] netlink_sendmsg+0x319/0x390
[ 1281.193974] sock_sendmsg+0x38/0x50
[ 1281.193975] ___sys_sendmsg+0x25c/0x270
[ 1281.193978] ? mem_cgroup_commit_charge+0x76/0xf0
[ 1281.193981] ? page_add_new_anon_rmap+0x89/0xc0
[ 1281.193984] ? lru_cache_add_active_or_unevictable+0x35/0xb0
[ 1281.193985] ? __handle_mm_fault+0x4e9/0x1170
[ 1281.193987] __sys_sendmsg+0x45/0x80
[ 1281.193989] SyS_sendmsg+0x12/0x20
[ 1281.193991] do_syscall_64+0x6e/0x180
[ 1281.193993] entry_SYSCALL64_slow_path+0x25/0x25
[ 1281.193995] RIP: 0033:0x7f6ec122f5a0
[ 1281.193995] RSP: 002b:
00007ffe69e89c48 EFLAGS:
00000246 ORIG_RAX:
000000000000002e
[ 1281.193997] RAX:
ffffffffffffffda RBX:
00007ffe69e8dd60 RCX:
00007f6ec122f5a0
[ 1281.193997] RDX:
0000000000000000 RSI:
00007ffe69e89c90 RDI:
0000000000000003
[ 1281.193998] RBP:
00007ffe69e89c90 R08:
0000000000000000 R09:
0000000000000003
[ 1281.193999] R10:
00007ffe69e89a10 R11:
0000000000000246 R12:
0000000058f14b9f
[ 1281.193999] R13:
0000000000000000 R14:
00000000006473a0 R15:
00007ffe69e8e450
[ 1281.194001] ---[ end trace
713a77486cbfbfa3 ]---
Fixes:
4493b81bea ("bonding: initialize work-queues during creation of bond")
Reported-by: Joe Stringer <joe@ovn.org>
Tested-by: Joe Stringer <joe@ovn.org>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 20 Apr 2017 15:27:58 +0000 (17:27 +0200)]
bpf, doc: update bpf maintainers entry
Add various related files that have been missing under
BPF entry covering essential parts of its infrastructure
and also add myself as co-maintainer.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Kochetkov [Thu, 20 Apr 2017 13:29:34 +0000 (16:29 +0300)]
net: arc_emac: switch to phy_start()/phy_stop()
Currently driver use phy_start_aneg() in arc_emac_open() to bring
up PHY. But phy_start() function is more appropriate for this purposes.
Besides that it call phy_start_aneg() as part of PHY startup sequence
it also can correctly bring up PHY from error and suspended states.
So the patch replace phy_start_aneg() to phy_start().
Also the patch add call to phy_stop() to arc_emac_stop() to allow
the PHY device to be fully suspended when the interface is unused.
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>