Commit Graph

916378 Commits

Author SHA1 Message Date
Jiri Pirko
d52238eb7b mlxsw: spectrum: Push flow_block related functions into a separate file
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>
2020-04-27 12:43:29 -07:00
Jiri Pirko
3bc3ffb6e9 mlxsw: spectrum: Rename acl_block to flow_block
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>
2020-04-27 12:43:29 -07:00
Jiri Pirko
49c958ccd2 mlxsw: spectrum_acl: Move block helpers into inline header functions
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>
2020-04-27 12:43:29 -07:00
David S. Miller
6488f11f39 Merge branch 'r8169-improve-chip-config-handling'
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>
2020-04-27 11:48:47 -07:00
Heiner Kallweit
10478283f2 r8169: improve configuring RxConfig register
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>
2020-04-27 11:48:47 -07:00
Heiner Kallweit
975e8505e6 r8169: improve handling CPCMD_MASK
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>
2020-04-27 11:48:47 -07:00
David S. Miller
45c9cbec42 Merge branch 'net-bridge-mrp'
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
419dba8a49 net: bridge: Add checks for enabling the STP.
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
6536993371 bridge: mrp: Integrate MRP into the bridge
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
4d02b8f075 bridge: mrp: Implement netlink interface to configure MRP
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
9a9f26e8f7 bridge: mrp: Connect MRP API with the switchdev API
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
fadd409136 bridge: switchdev: mrp: Implement MRP API for switchdev
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
c284b54590 switchdev: mrp: Extend switchdev API to offload MRP
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
2f1a11ae11 bridge: mrp: Add MRP interface.
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
3e54442c93 net: bridge: Add port attribute IFLA_BRPORT_MRP_RING_OPEN
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
4b8d7d4c59 bridge: mrp: Extend bridge interface
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
2cc974f83f bridge: mrp: Update Kconfig
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>
2020-04-27 11:40:25 -07:00
Horatiu Vultur
4714d13791 bridge: uapi: mrp: Add mrp attributes.
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>
2020-04-27 11:40:25 -07:00
Colin Ian King
7d31180167 net: rtnetlink: remove redundant assignment to variable err
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>
2020-04-27 11:14:07 -07:00
Oleksij Rempel
3608a19974 dt-bindings: net: convert qca,ar71xx documentation to yaml
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>
2020-04-27 10:10:35 -07:00
Oleksij Rempel
0767ec0428 net: ag71xx: extend link validation to support other SoCs
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>
2020-04-27 10:09:21 -07:00
Huazhong Tan
3fd8dc269f net: hns3: remove an unnecessary check in hclge_set_umv_space()
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>
2020-04-25 20:56:45 -07:00
Tonghao Zhang
659d4587fe net: openvswitch: use div_u64() for 64-by-32 divisions
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: e57358873b ("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>
2020-04-25 20:48:21 -07:00
Tonghao Zhang
4b36a0dff7 net: openvswitch: suitable access to the dp_meters
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>
2020-04-25 20:48:21 -07:00
David S. Miller
06b439de5f Merge branch 'hinic-add-SR-IOV-support'
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>
2020-04-25 20:46:28 -07:00
Luo bin
1f62cfa19a hinic: add net_device_ops associated with vf
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>
2020-04-25 20:46:28 -07:00
Luo bin
7dd29ee128 hinic: add sriov feature support
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>
2020-04-25 20:46:28 -07:00
Luo bin
a425b6e1c6 hinic: add mailbox function support
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>
2020-04-25 20:46:27 -07:00
Zou Wei
c90af587a9 net/mlx4_core: Add missing iounmap() in error path
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: 7ef19d3b1d ("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>
2020-04-25 20:43:56 -07:00
YueHaibing
df346f1aac dccp: remove unused inline function dccp_set_seqno
There's no callers in-tree since commit 792b48780e ("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>
2020-04-25 20:42:57 -07:00
YueHaibing
163749ad84 qlcnic: remove unused inline function qlcnic_hw_write_wx_2M
There's no callers in-tree anymore.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:42:57 -07:00
YueHaibing
308de89fed liquidio: remove unused inline functions
commit b6334be64d ("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>
2020-04-25 20:42:57 -07:00
Yang Yingliang
3e14462f1b ptp: clockmatrix: remove unnecessary comparison
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>
2020-04-25 20:41:42 -07:00
Taehee Yoo
f30e472071 hsr: remove unnecessary code in hsr_dev_change_mtu()
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>
2020-04-25 20:40:57 -07:00
Florian Westphal
071c8ed6e8 tcp: mptcp: use mptcp receive buffer space to select rcv window
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>
2020-04-25 20:37:52 -07:00
Ioana Ciornei
460fd830dd dpaa2-eth: add channel stat to debugfs
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>
2020-04-25 20:37:22 -07:00
Zheng Bin
ae23aae229 octeontx2-pf: Remove unneeded semicolon
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>
2020-04-25 20:36:02 -07:00
Zheng Bin
dce38b74b2 net: phy: dp83867: Remove unneeded semicolon
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>
2020-04-25 20:35:41 -07:00
David S. Miller
8b5d10e4d2 Merge branch 'net-hns3-refactor-for-MAC-table'
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>
2020-04-25 20:29:44 -07:00
Jian Shen
039ba863e8 net: hns3: optimize the filter table entries handling when resetting
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>
2020-04-25 20:29:44 -07:00
Jian Shen
7d0b345156 net: hns3: use mutex vport_lock instead of mutex umv_lock
Currently, the driver use mutex umv_lock to protect the variable
vport->share_umv_size. And there is already a mutex vport_lock
being defined in the driver, which is designed to protect the
resource of vport. So we can use vport_lock instead of umv_lock.

Furthermore, there is a time window for protect share_umv_size
between checking UMV space and doing MAC configuration in the
lin function hclge_add_uc_addr_common(). It should be extended.

This patch uses mutex vport_lock intead of spin lock umv_lock to
protect share_umv_size, and adjusts the mutex's range.

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>
2020-04-25 20:29:44 -07:00
Jian Shen
c631c69682 net: hns3: refactor the promisc mode setting
As the HNS3 driver doesn't update the MAC address directly in
function hns3_set_rx_mode() now, it can't know whether the
MAC table is full from __dev_uc_sync() and __dev_mc_sync(),
so it's senseless to handle the overflow promisc here.

This patch removes the handle of overflow promisc from function
hns3_set_rx_mode(), and updates the promisc mode in the service
task.

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>
2020-04-25 20:29:44 -07:00
Jian Shen
f671237a4b net: hns3: add support for dumping UC and MC MAC list
This patch adds support for dumping entries of UC and MC MAC list,
which help checking whether a MAC address being added into hardware
or not.

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>
2020-04-25 20:29:44 -07:00
Jian Shen
ee4bcd3b7a net: hns3: refactor the MAC address configure
Currently, the HNS3 driver sync and unsync MAC address in function
hns3_set_rx_mode(). For PF, it adds and deletes MAC address directly
in the path of dev_set_rx_mode(). If failed, it won't retry until
next calling of hns3_set_rx_mode(). On the other hand, if request
add and remove a same address many times at a short interval, each
request must be done one by one, can't be merged. For VF, it sends
mailbox messages to PF to request adding or deleting MAC address in
the path of function hns3_set_rx_mode(), no matter the address is
configured success.

This patch refines it by recording the MAC address in function
hns3_set_rx_mode(), and updating MAC address in the service task.
If failed, it will retry by the next calling of periodical service
task. It also uses some state to mark the state of each MAC address
in the MAC list, which can help merge configure request for a same
address. With these changes, when global reset or IMP reset occurs,
we can restore the MAC table with the MAC list.

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>
2020-04-25 20:29:44 -07:00
Jian Shen
4c58f59247 net: hns3: replace num_req_vfs with num_alloc_vport in hclge_reset_umv_space()
Like the calculation elsewhere, replaces num_req_vfs with
num_alloc_vport in hclge_reset_umv_space().

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>
2020-04-25 20:29:44 -07:00
Jian Shen
c1c5f66ee0 net: hns3: remove unnecessary parameter 'is_alloc' in hclge_set_umv_space()
Since hclge_set_umv_space() is only called by hclge_init_umv_space(),
so parameter 'is_alloc' is redundant.

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>
2020-04-25 20:29:44 -07:00
Jian Shen
1ac0e6c292 net: hns3: refine for unicast MAC VLAN space management
Currently, firmware helps manage the unicast MAC VLAN table
space for each PF. PF just needs to tell firmware its wanted
space when initializing, and unnecessary to free it when
un-intializing. So this patch removes the umv space free handle,
and removes the forward statement of hclge_set_umv_space()
by defining hclge_init_umv_space() after it.

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>
2020-04-25 20:29:43 -07:00
David S. Miller
d483389678 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Simple overlapping changes to linux/vermagic.h

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-25 20:18:53 -07:00
Linus Torvalds
b2768df24e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull pid leak fix from Eric Biederman:
 "Oleg noticed that put_pid(thread_pid) was not getting called when proc
  was not compiled in.

  Let's get that fixed before 5.7 is released and causes problems for
  anyone"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  proc: Put thread_pid in release_task not proc_flush_pid
2020-04-25 12:25:32 -07:00
Linus Torvalds
acd6294468 A single fix for a comment that may show up in DocBook output.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl6kAzQRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hd4g/8CcrxNvT8pOFzU2ArC5O7ojCEWQO5iBLr
 /FODD9xrAfrRfjBZtF7RhPQpavBJhcdonGEQI2WRXIpBHtELm2QLE5V4IyXYyovS
 fwx5Ol7pHkqbKSlio+qCnJvvWmK7HbIZ9HTdDBomr3YgiOHG7TrVvcqM26K/vHi0
 1Ek8YyN/ZpKO2kdT4bd8jiNUmj3RZXtHehlyRxa/NNMm36laiO9nd4QvZkG+4yaC
 AUBzbDs3NOwaVb3+iNM9/acQ8cfT/mneAiPflEAf+k2dAWJkLLjzVdMWhMWxXL3R
 iNkySKAH2p+X3lv3h+lS2fVw6gxLhxltW6CiOwdGpIoZ+8yiQirbisPebVb+wfvL
 lAZzpghwPtgo+0wSlL/nJUXbBwotEpYz55D92H7qIwb6BOxaDTiVLw3sOImdD2y+
 XtmRvmfOQTjVgtuHUs0e1VKqFK05KcuoONM3jvweIu0Tz4A9AalmDhJcPRy/zX+k
 vh4DlYW5NN5vaa/IiGecmSWv/e8/hlD5S1j2BwV7N6Cy9lDv29cdzs3k0Mnl7vFc
 kzqhXocLH5BI4Bc0uD+LdD2qDXuNwtZ43PY95bC+YTvSC8cisLkE9ARmNbEgcIBA
 +6c8XKMtCRS525dQECgTBwWuSAspdD6jd9ycLsHllBxye0MppeLzMc5QZm9B6z6a
 /EACcsppnt0=
 =DOTJ
 -----END PGP SIGNATURE-----

Merge tag 'timers-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fixlet from Ingo Molnar:
 "A single fix for a comment that may show up in DocBook output"

* tag 'timers-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  vdso/datapage: Use correct clock mode name in comment
2020-04-25 12:16:48 -07:00