Signed-off-by: NTonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

tcp_peer_is_proven needs a proper route to make the
determination, but dst always is NULL. This bug may
be there at the beginning of git tree. This does not
look serious enough to deserve backports to stable
versions.
Signed-off-by: NTonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Haiyang Zhang says:

====================
hv_netvsc: Ethtool handler to change UDP hash levels

The patch set adds the functions to switch UDP hash level between
L3 and L4 by ethtool command. UDP over IPv4 and v6 can be set
differently. The default hash level is L4. We currently only
allow switching TX hash level from within the guests.

The ethtool callback function is triggered by command line, and
update the per device variables of the hash level.

On Azure, fragmented UDP packets is not yet supported with L4
hashing, and may have high packet loss rate. Using L3 hashing is
recommended in this case. This ethtool option allows a user to
make this selection.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update Documentation/networking/netvsc.txt for UDP hash level setting
and related info.
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The patch add the functions to switch UDP hash level between
L3 and L4 by ethtool command. UDP over IPv4 and v6 can be set
differently. The default hash level is L4. We currently only
allow switching TX hash level from within the guests.

On Azure, fragmented UDP packets have high loss rate with L4
hashing. Using L3 hashing is recommended in this case.

For example, for UDP over IPv4 on eth0:
To include UDP port numbers in hasing:
	ethtool -N eth0 rx-flow-hash udp4 sdfn
To exclude UDP port numbers in hasing:
	ethtool -N eth0 rx-flow-hash udp4 sd
To show UDP hash level:
	ethtool -n eth0 rx-flow-hash udp4
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The parameter "nvdev" is not in use.
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The parameter "sk" is not in use.
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Veerasenareddy Burru says:

====================
liquidio: VF driver will notify NIC firmware of MTU change

Make VF driver notify NIC firmware of MTU change.  Firmware needs this
information for MTU propagation and enforcement.

The first patch in this series moves a macro definition to a proper place
to prevent a build error in the second patch which has the code that sends
the notification.

Change Log:
  V1 -> V2
    * Add "From:" line to patch #1 and #2 to give credit to the author.
    * In patch #2, order local variable declarations from longest to
      shortest line.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NVeerasenareddy Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: NFelix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The macro LIO_CMD_WAIT_TM is not specific to the PF driver; it can be used
by the VF driver too, so move its definition from a PF-specific header file
to one that's common to PF and VF.
Signed-off-by: NVeerasenareddy Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: NFelix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make these const as they are only used in a copy operation.
Done using Coccinelle.

@match disable optional_qualifier@
identifier s;
@@
static struct ptp_clock_info s = {...};

@ref@
position p;
identifier match.s;
@@
s@p

@good1@
position ref.p;
identifier match.s,f,c;
expression e;
@@
(
e = s@p
|
e = s@p.f
|
c(...,s@p.f,...)
|
c(...,s@p,...)
)

@bad depends on  !good1@
position ref.p;
identifier match.s;
@@
s@p

@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct ptp_clock_info s;
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make these const as they are only used in a copy operation.
Done using Coccinelle.

@match disable optional_qualifier@
identifier s;
@@
static struct ptp_clock_info s = {...};

@ref@
position p;
identifier match.s;
@@
s@p

@good1@
position ref.p;
identifier match.s,f,c;
expression e;
@@
(
e = s@p
|
e = s@p.f
|
c(...,s@p.f,...)
|
c(...,s@p,...)
)

@bad depends on  !good1@
position ref.p;
identifier match.s;
@@
s@p

@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct ptp_clock_info s;
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the following support to the HNS3 driver:
1. Support to change the Maximum Transmission Unit of a
   port in the HNS NIC hardware.
2. Initializes the supported MTU range for the netdevice.
Signed-off-by: Nlipeng <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Aviad Krawczyk says:

====================
Huawei HiNIC Ethernet Driver

The patch-set contains the support of the HiNIC Ethernet driver for
hinic family of PCIE Network Interface Cards.

The Huawei's PCIE HiNIC card is a new Ethernet card and hence there was
a need of a new driver.

The current driver is meant to be used for the Physical Function and there
would soon be a support for Virtual Function and more features once the
basic PF driver has been accepted.

Changes V7 -> V8:
1. Remove unnecessary cast from void * - Stephen Hemminger comment
	https://lkml.org/lkml/2017/8/17/1008

Changes V6 -> V7:
1. Separate netpoll and MAINTAINERS patch - Sergei Shtylyov comment
	https://lkml.org/lkml/2017/8/17/479

Changes V5 -> V6:
1. Fix cover letter Message-Id

Changes V4 -> V5:
1. Remove select_queue NOP - David Miller comment
        https://lkml.org/lkml/2017/8/16/625

Changes V3 -> V4:
1. Reverse christmas tree order - David Miller comment
        https://lkml.org/lkml/2017/8/3/862

Changes V2 -> V3:
1. Replace dev_ functions by netif_ functions - Joe Perches comment
        https://lkml.org/lkml/2017/7/19/424
2. Fix the driver directory in MAINTAINERS file - Sergei Shtylyov comment
        https://lkml.org/lkml/2017/7/19/615
3. Add a newline at the end of Makefile - David Miller comment
        https://lkml.org/lkml/2017/7/19/1345
4. Return a pointer as a val instead of in arg - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
5. Change the error labels to err_xyz - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
6. Remove check of Func Type in free function - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
7. Remove !netdev check in remove function - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
8. Use module_pci_driver - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
9. Move the PCI device ID to the .c file - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319
10. Remove void * to avoid passing wrong ptr - Francois Romieu comment
        https://lkml.org/lkml/2017/7/19/1319

Changes V1 -> V2:
1. remove driver verstion - Andrew Lunn comment
        https://lkml.org/lkml/2017/7/12/372
2. replace kzalloc by devm_kzalloc for short clean - Andrew Lunn comment
        https://lkml.org/lkml/2017/7/12/372
3. replace pr_ functions by dev_ functions - Andrew Lunn comment
        https://lkml.org/lkml/2017/7/12/375
4. seperate last patch by moving ops to a new patch - Andrew Lunn comment
        https://lkml.org/lkml/2017/7/12/377
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update MAINTAINERS file
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add more netdev operation - netpoll.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add ethtool operations and statistics operations.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add transmit operation for sending data by qp operations.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Set the io resources in the nic and handle rx events by qp operations.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add cmdq completion handler for getting a notification about the
completion of cmdq commands.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add cmdq commands for setting queue pair contexts in the nic.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize the completion event queues and handle ceq events by calling
the registered handlers. Used for cmdq command completion.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create the work queues for cmdq and update the nic about the work queue
contexts. cmdq commands are used for updating the nic about the qp
contexts.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update the nic about the resources of the queue pairs.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create the resources for queue pair operations: doorbell area,
consumer index address and producer index address.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create work queues for being used by the queue pairs.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create the logical queues of the nic.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add port management message for setting Rx mode in the card,
used for rx_mode netdev operation.
The link event handler is used for getting a notification about the
link state.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the port management commands that are sent as management messages.
The port management commands are used for netdev operations.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Handle aeq elements that are accumulated on the aeq by calling the
registered handler for the specific event.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the api cmd commands for sending management messages to the nic.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the management messages for sending to api cmd and the asynchronous
event handler for the completion of the messages.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update the hardware about api cmd resources and initialize it.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize api cmd resources as part of management initialization.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize hw device by calling the initialization functions of aeqs and
management channel.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize hw interface as part of the nic initialization for accessing hw.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It only supports rmii interface. Add constants and callback functions
for the dwmac on rv1108 socs. As can be seen, the base structure is
the same, only registers and the bits in them moved slightly.
Signed-off-by: NDavid Wu <david.wu@rock-chips.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The get_options() function takes the whole ARRAY_SIZE().  It doesn't
matter here because we don't use more than 7 elements.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The JIT compiler emits ARM 32 bit instructions. Currently, It supports
eBPF only. Classic BPF is supported because of the conversion by BPF core.

This patch is essentially changing the current implementation of JIT compiler
of Berkeley Packet Filter from classic to internal with almost all
instructions from eBPF ISA supported except the following
	BPF_ALU64 | BPF_DIV | BPF_K
	BPF_ALU64 | BPF_DIV | BPF_X
	BPF_ALU64 | BPF_MOD | BPF_K
	BPF_ALU64 | BPF_MOD | BPF_X
	BPF_STX | BPF_XADD | BPF_W
	BPF_STX | BPF_XADD | BPF_DW

Implementation is using scratch space to emulate 64 bit eBPF ISA on 32 bit
ARM because of deficiency of general purpose registers on ARM. Currently,
only LITTLE ENDIAN machines are supported in this eBPF JIT Compiler.

Tested on ARMv7 with QEMU by me (Shubham Bansal).

Testing results on ARMv7:

1) test_bpf: Summary: 341 PASSED, 0 FAILED, [312/333 JIT'ed]
2) test_tag: OK (40945 tests)
3) test_progs: Summary: 30 PASSED, 0 FAILED
4) test_lpm: OK
5) test_lru_map: OK

Above tests are all done with following flags enabled discreatly.

1) bpf_jit_enable=1
	a) CONFIG_FRAME_POINTER enabled
	b) CONFIG_FRAME_POINTER disabled
2) bpf_jit_enable=1 and bpf_jit_harden=2
	a) CONFIG_FRAME_POINTER enabled
	b) CONFIG_FRAME_POINTER disabled

See Documentation/networking/filter.txt for more information.
Signed-off-by: NShubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>