The code around flow_block is currently mixed in spectrum_acl.c.
However, as it really does not directly relate to ACL part only,
push the bits into a separate file.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The acl_block structure is going to be used for non-acl case - matchall
offload. So rename it accordingly.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The struct is defined in the header, no need to have the helpers
in the c file. Move the helpers to the header.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Heiner Kallweit says:

====================
r8169: improve chip config handling

Series includes two improvements for chip configuration handling.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Two bits in RxConfig are controlled by the following dev->feature's:
- NETIF_F_RXALL
- NETIF_F_HW_VLAN_CTAG_RX (since RTL8125)

We have to take care that RxConfig gets fully configured in
rtl_hw_start() after e.g. resume from hibernation. Therefore:

- Factor out setting the feature-controlled RxConfig bits to a new
  function rtl_set_rx_config_features() that is called from
  rtl8169_set_features() and rtl_hw_start().
- Don't deal with RX_VLAN_8125 in rtl_init_rxcfg(), it will be set
  by rtl_set_rx_config_features().
- Don't handle NETIF_F_RXALL in rtl_set_rx_mode().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

It's sufficient to do the masking once in probe() for clearing
unwanted bits that may have been set by the BIOS.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Horatiu Vultur says:

====================
net: bridge: mrp: Add support for Media Redundancy Protocol(MRP)

Media Redundancy Protocol is a data network protocol standardized by
International Electrotechnical Commission as IEC 62439-2. It allows rings of
Ethernet switches to overcome any single failure with recovery time faster than
STP. It is primarily used in Industrial Ethernet applications.

Based on the previous RFC[1][2][3][4][5], and patches[6][7][8], the MRP state
machine and all the timers were moved to userspace, except for the timers used
to generate MRP Test frames.  In this way the userspace doesn't know and should
not know if the HW or the kernel will generate the MRP Test frames. The
following changes were added to the bridge to support the MRP:
- the existing netlink interface was extended with MRP support,
- allow to detect when a MRP frame was received on a MRP ring port
- allow MRP instance to forward/terminate MRP frames
- generate MRP Test frames in case the HW doesn't have support for this

To be able to offload MRP support to HW, the switchdev API  was extend.

With these changes the userspace doesn't do the following because already the
kernel/HW will do:
- doesn't need to forward/terminate MRP frames
- doesn't need to generate MRP Test frames
- doesn't need to detect when the ring is open/closed.

The userspace application that is using the new netlink can be found here[9].

The current implementation both in kernel and userspace supports only 2 roles:
  MRM - this one is responsible to send MRP_Test and MRP_Topo frames on both
  ring ports. It needs to process MRP_Test to know if the ring is open or
  closed. This operation is desired to be offloaded to the HW because it
  requires to generate and process up to 4000 frames per second. Whenever it
  detects that the ring is open it sends MRP_Topo frames to notify all MRC about
  changes in the topology. MRM needs also to process MRP_LinkChange frames,
  these frames are generated by the MRC. When the ring is open then the state
  of both ports is to forward frames and when the ring is closed then the
  secondary port is blocked.

  MRC - this one is responsible to forward MRP frames between the ring ports.
  In case one of the ring ports gets a link down or up, then MRC will generate
  a MRP_LinkChange frames. This node should also process MRP_Topo frames and to
  clear its FDB when it receives this frame.

 Userspace
               Deamon +----------+ Client
                +
                |
 +--------------|-----------------------------------------+
  Kernel        |
                + Netlink

                |                              + Interrupt
                |                              |
 +--------------|------------------------------|----------+
  HW            | Switchdev                    |
                +                              |

The user interacts using the client (called 'mrp'), the client talks to the
deamon (called 'mrp_server'), which talks with the kernel using netlink. The
kernel will try to offload the requests to the HW via switchdev API.

If this will be accepted then in the future the netlink interface can be
expended with multiple attributes which are required by different roles of the
MRP. Like Media Redundancy Automanager(MRA), Media Interconnect Manager(MIM) and
Media Interconnect Client(MIC).

[1] https://www.spinics.net/lists/netdev/msg623647.html
[2] https://www.spinics.net/lists/netdev/msg624378.html
[3] https://www.spinics.net/lists/netdev/msg627500.html
[4] https://www.spinics.net/lists/netdev/msg641005.html
[5] https://www.spinics.net/lists/netdev/msg643991.html
[6] https://www.spinics.net/lists/netdev/msg645378.html
[7] https://www.spinics.net/lists/kernel/msg3484685.html
[8] https://www.spinics.net/lists/netdev/msg646202.html
[9] https://github.com/microchip-ung/mrp/tree/patch-v9

-v4:
  - fix comments in br_mrp.c
  - use skb_header_pointer to get br_mrp_tlv_hdr
  - fix line over 80 characters

-v3:
  - fix unused variables

-v2:
  - drop patch 4
  - add port flag BR_MRP_LOST_CONT;
  - another fix for bisectability

-v1:
  - fix bisectability issues
  - in case of errors use extack

-RFC v5:
  - use nla_parse_nested
  - rework the usage of the rcu in br_mrp
  - reorder patches
  - few other small issues raised by Nikolay

-RFC v4:
  - extend existing netlink interface to add mrp support
  - use rcu locks

-RFC v3:
  - move MRP state machine in userspace
  - create generic netlink interface for configuring the HW using switchdev API

-RFC v2:
  - extend switchdev API to offload to HW
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

It is not possible to have the MRP and STP running at the same time on the
bridge, therefore add check when enabling the STP to check if MRP is already
enabled. In that case return error.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

To integrate MRP into the bridge, the bridge needs to do the following:
- detect if the MRP frame was received on MRP ring port in that case it would be
  processed otherwise just forward it as usual.
- enable parsing of MRP
- before whenever the bridge was set up, it would set all the ports in
  forwarding state. Add an extra check to not set ports in forwarding state if
  the port is an MRP ring port. The reason of this change is that if the MRP
  instance initially sets the port in blocked state by setting the bridge up it
  would overwrite this setting.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Implement netlink interface to configure MRP. The implementation
will do sanity checks over the attributes and then eventually call the MRP
interface.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Implement the MRP API.

In case the HW can't generate MRP Test frames then the SW will try to generate
the frames. In case that also the SW will fail in generating the frames then a
error is return to the userspace. The userspace is responsible to generate all
the other MRP frames regardless if the test frames are generated by HW or SW.

The forwarding/termination of MRP frames is happening in the kernel and is done
by the MRP instance. The userspace application doesn't do the forwarding.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Implement the MRP api for switchdev.
These functions will just eventually call the switchdev functions:
switchdev_port_obj_add/del and switchdev_port_attr_set.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Extend switchdev API to add support for MRP. The HW is notified in
following cases:

SWITCHDEV_OBJ_ID_MRP: This is used when a MRP instance is added/removed
  from the MRP ring.

SWITCHDEV_OBJ_ID_RING_ROLE_MRP: This is used when the role of the node
  changes. The current supported roles are MRM and MRC.

SWITCHDEV_OBJ_ID_RING_TEST_MRP: This is used when to start/stop sending
  MRP_Test frames on the mrp ring ports. This is called only on nodes that have
  the role MRM. In case this fails then the SW will generate the frames.

SWITCHDEV_OBJ_ID_RING_STATE_STATE: This is used when the ring changes it states
  to open or closed. This is required to notify HW because the MRP_Test frame
  contains the field MRP_InState which contains this information.

SWITCHDEV_ATTR_ID_MRP_PORT_STATE: This is used when the port's state is
  changed. It can be in blocking/forwarding mode.

SWITCHDEV_ATTR_ID_MRP_PORT_ROLE: This is used when port's role changes. The
  roles of the port can be primary/secondary. This is required to notify HW
  because the MRP_Test frame contains the field MRP_PortRole that contains this
  information.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Define the MRP interface.
This interface is used by the netlink to update the MRP instances and by the MRP
to make the calls to switchdev to offload it to HW.

It defines an MRP instance 'struct br_mrp' which is a list of MRP instances.
Which will be part of the 'struct net_bridge'. Each instance has 2 ring ports,
a bridge and an ID.

In case the HW can't generate MRP Test frames then the SW will generate those.

br_mrp_add - adds a new MRP instance.

br_mrp_del - deletes an existing MRP instance. Each instance has an ID(ring_id).

br_mrp_set_port_state - changes the port state. The port can be in forwarding
  state, which means that the frames can pass through or in blocked state which
  means that the frames can't pass through except MRP frames. This will
  eventually call the switchdev API to notify the HW. This information is used
  also by the SW bridge to know how to forward frames in case the HW doesn't
  have this capability.

br_mrp_set_port_role - a port role can be primary or secondary. This
  information is required to be pushed to HW in case the HW can generate
  MRP_Test frames.  Because the MRP_Test frames contains a file with this
  information. Otherwise the HW will not be able to generate the frames
  correctly.

br_mrp_set_ring_state - a ring can be in state open or closed. State open means
  that the mrp port stopped receiving MRP_Test frames, while closed means that
  the mrp port received MRP_Test frames. Similar with br_mrp_port_role, this
  information is pushed in HW because the MRP_Test frames contain this
  information.

br_mrp_set_ring_role - a ring can have the following roles MRM or MRC. For the
  role MRM it is expected that the HW can terminate the MRP frames, notify the
  SW that it stopped receiving MRP_Test frames and trapp all the other MRP
  frames.  While for MRC mode it is expected that the HW can forward the MRP
  frames only between the MRP ports and copy MRP_Topology frames to CPU. In
  case the HW doesn't support a role it needs to return an error code different
  than -EOPNOTSUPP.

br_mrp_start_test - this starts/stops the generation of MRP_Test frames. To stop
  the generation of frames the interval needs to have a value of 0. In this case
  the userspace needs to know if the HW supports this or not. Not to have
  duplicate frames(generated by HW and SW). Because if the HW supports this then
  the SW will not generate anymore frames and will expect that the HW will
  notify when it stopped receiving MRP frames using the function
  br_mrp_port_open.

br_mrp_port_open - this function is used by drivers to notify the userspace via
  a netlink callback that one of the ports stopped receiving MRP_Test frames.
  This function is called only when the node has the role MRM. It is not
  supposed to be called from userspace.

br_mrp_port_switchdev_add - this corresponds to the function br_mrp_add,
  and will notify the HW that a MRP instance is added. The function gets
  as parameter the MRP instance.

br_mrp_port_switchdev_del - this corresponds to the function br_mrp_del,
  and will notify the HW that a MRP instance is removed. The function
  gets as parameter the ID of the MRP instance that is removed.

br_mrp_port_switchdev_set_state - this corresponds to the function
  br_mrp_set_port_state. It would notify the HW if it should block or not
  non-MRP frames.

br_mrp_port_switchdev_set_port - this corresponds to the function
  br_mrp_set_port_role. It would set the port role, primary or secondary.

br_mrp_switchdev_set_role - this corresponds to the function
  br_mrp_set_ring_role and would set one of the role MRM or MRC.

br_mrp_switchdev_set_ring_state - this corresponds to the function
  br_mrp_set_ring_state and would set the ring to be open or closed.

br_mrp_switchdev_send_ring_test - this corresponds to the function
  br_mrp_start_test. This will notify the HW to start or stop generating
  MRP_Test frames. Value 0 for the interval parameter means to stop generating
  the frames.

br_mrp_port_open - this function is used to notify the userspace that the port
  lost the continuity of MRP Test frames.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds a new port attribute, IFLA_BRPORT_MRP_RING_OPEN, which allows
to notify the userspace when the port lost the continuite of MRP frames.

This attribute is set by kernel whenever the SW or HW detects that the ring is
being open or closed.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

To integrate MRP into the bridge, first the bridge needs to be aware of ports
that are part of an MRP ring and which rings are on the bridge.
Therefore extend bridge interface with the following:
- add new flag(BR_MPP_AWARE) to the net bridge ports, this bit will be
  set when the port is added to an MRP instance. In this way it knows if
  the frame was received on MRP ring port
- add new flag(BR_MRP_LOST_CONT) to the net bridge ports, this bit will be set
  when the port lost the continuity of MRP Test frames.
- add a list of MRP instances
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add the option BRIDGE_MRP to allow to build in or not MRP support.
The default value is N.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add new nested netlink attribute to configure the MRP. These attributes are used
by the userspace to add/delete/configure MRP instances and by the kernel to
notify the userspace when the MRP ring gets open/closed. MRP nested attribute
has the following attributes:

IFLA_BRIDGE_MRP_INSTANCE - the parameter type is br_mrp_instance which contains
  the instance id, and the ifindex of the two ports. The ports can't be part of
  multiple instances. This is used to create/delete MRP instances.

IFLA_BRIDGE_MRP_PORT_STATE - the parameter type is u32. Which can be forwarding,
  blocking or disabled.

IFLA_BRIDGE_MRP_PORT_ROLE - the parameter type is br_mrp_port_role which
  contains the instance id and the role. The role can be primary or secondary.

IFLA_BRIDGE_MRP_RING_STATE - the parameter type is br_mrp_ring_state which
  contains the instance id and the state. The state can be open or closed.

IFLA_BRIDGE_MRP_RING_ROLE - the parameter type is br_mrp_ring_role which
  contains the instance id and the ring role. The role can be MRM or MRC.

IFLA_BRIDGE_MRP_START_TEST - the parameter type is br_mrp_start_test which
  contains the instance id, the interval at which to send the MRP_Test frames,
  how many test frames can be missed before declaring the ring open and the
  period which represent for how long to send the test frames.

Also add the file include/uapi/linux/mrp_bridge.h which defines all the types
used by MRP that are also needed by the userpace.
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The variable err is being initializeed with a value that is never read
and it is being updated later with a new value. The initialization
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Now that we have the DT validation in place, let's convert the device tree
bindings for the Atheros AR71XX over to a YAML schemas.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Most (all?) QCA SoCs have two MAC with different supported link
capabilities. Extend ag71xx_mac_validate() to properly validate this
variants.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Since hclge_set_umv_space() is only called by hclge_init_umv_space(),
parameter 'allocated_size' will not be NULL.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Compile the kernel for arm 32 platform, the build warning found.
To fix that, should use div_u64() for divisions.
| net/openvswitch/meter.c:396: undefined reference to `__udivdi3'

[add more commit msg, change reported tag, and use div_u64 instead
of do_div by Tonghao]

Fixes: e5735887 ("net: openvswitch: use u64 for meter bucket")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Tested-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

To fix the following sparse warning:
| net/openvswitch/meter.c:109:38: sparse: sparse: incorrect type
| in assignment (different address spaces) ...
| net/openvswitch/meter.c:720:45: sparse: sparse: incorrect type
| in argument 1 (different address spaces) ...
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Luo bin says:

====================
hinic: add SR-IOV support

patch #1 adds mailbox channel support and vf can
communicate with pf or hw through it.
patch #2 adds support for enabling vf and tx/rx
capabilities based on vf.
patch #3 adds support for vf's basic configurations.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

adds ndo_set_vf_mac/ndo_set_vf_vlan/ndo_get_vf_config and
ndo_set_vf_trust to configure netdev of virtual function
Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

adds support of basic sriov feature including initialization and
tx/rx capabilities of virtual function
Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

virtual function and physical function can communicate with each
other through mailbox channel supported by hw
Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This fixes the following coccicheck warning:

drivers/net/ethernet/mellanox/mlx4/crdump.c:200:2-8: ERROR: missing iounmap;
ioremap on line 190 and execution via conditional on line 198

Fixes: 7ef19d3b ("devlink: report error once U32_MAX snapshot ids have been used")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

There's no callers in-tree since commit 792b4878 ("dccp: Implement
both feature-local and feature-remote Sequence Window feature")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

There's no callers in-tree anymore.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

commit b6334be6 ("net/liquidio: Delete driver version assignment")
left behind this, remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The type of loaddr is u8 which is always '<=' 0xff, so the
loaddr <= 0xff is always true, we can remove this comparison.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Vincent Cheng  <vincent.cheng.xh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In the hsr_dev_change_mtu(), the 'dev' and 'master->dev' pointer are
same. So, the 'master' variable and some code are unnecessary.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In MPTCP, the receive window is shared across all subflows, because it
refers to the mptcp-level sequence space.

MPTCP receivers already place incoming packets on the mptcp socket
receive queue and will charge it to the mptcp socket rcvbuf until
userspace consumes the data.

Update __tcp_select_window to use the occupancy of the parent/mptcp
socket instead of the subflow socket in case the tcp socket is part
of a logical mptcp connection.

This commit doesn't change choice of initial window for passive or active
connections.
While it would be possible to change those as well, this adds complexity
(especially when handling MP_JOIN requests).  Furthermore, the MPTCP RFC
specifically says that a MPTCP sender 'MUST NOT use the RCV.WND field
of a TCP segment at the connection level if it does not also carry a DSS
option with a Data ACK field.'

SYN/SYNACK packets do not carry a DSS option with a Data ACK field.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Compute the average number of frames processed for each CDAN (Channel
Data Availability Notification) and export it to debugfs detailed
channel stats.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Fixes coccicheck warning:

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h:312:2-3: Unneeded semicolon
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Fixes coccicheck warning:

drivers/net/phy/dp83867.c:368:2-3: Unneeded semicolon
drivers/net/phy/dp83867.c:403:2-3: Unneeded semicolon
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

Huazhong Tan says:

====================
net: hns3: refactor for MAC table

This patchset refactors the MAC table management, configure
the MAC address asynchronously, instead of synchronously.
Base on this change, it also refines the handle of promisc
mode and filter table entries restoring after reset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently, the PF driver removes all (including its VFs') MAC/VLAN
flow director table entries when resetting, and restores them after
reset completed.

In fact, the hardware will clear all table entries only in IMP
reset and global reset. So driver only needs to restore the table
entries in these cases, and needs do nothing when PF reset, FLR
or other function level reset.

This patch optimizes it by removing unnecessary table entries clear
and restoring handling in the reset flow, and doing the restoring
after reset completed.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>