Merge branch 'ebpf-samples-cross-compile'

Joel Fernandes says:

====================
Add cross-compilation support to eBPF samples

These patches fix issues seen when cross-compiling eBPF samples on arm64.
Compared to [1], I dropped the controversial inline-asm patch and exploring
other options to fix it. However these patches are a step in the right
direction and I look forward to getting them into -next and the merge window.

Changes since v3:
- just a repost with acks

[1] https://lkml.org/lkml/2017/8/7/417
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

samples/bpf: Add documentation on cross compilation

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

samples/bpf: Fix pt_regs issues when cross-compiling

BPF samples fail to build when cross-compiling for ARM64 because of incorrect
pt_regs param selection. This is because clang defines __x86_64__ and
bpf_headers thinks we're building for x86. Since clang is building for the BPF
target, it shouldn't make assumptions about what target the BPF program is
going to run on. To fix this, lets pass ARCH so the header knows which target
the BPF program is being compiled for and can use the correct pt_regs code.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

samples/bpf: Enable cross compiler support

When cross compiling, bpf samples use HOSTCC for compiling the non-BPF part of
the sample, however what we really want is to use the cross compiler to build
for the cross target since that is what will load and run the BPF sample.
Detect this and compile samples correctly.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

samples/bpf: Use getppid instead of getpgrp for array map stress

When cross-compiling the bpf sample map_perf_test for aarch64, I find that
__NR_getpgrp is undefined. This causes build errors. This syscall is deprecated
and requires defining __ARCH_WANT_SYSCALL_DEPRECATED. To avoid having to define
that, just use a different syscall (getppid) for the array map stress test.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge branch 'net-setup_timer'

Allen Pais says:

====================
net: use setup_timer() helper function.

 This series uses setup_timer() helper function. The series
addresses the files under drivers/net/*.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: lmc: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: bnx2x: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: cxgb: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: enic: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: uli526x: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: i40evf: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: packetengines: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: stmmac: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: cpsw_ale: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: hamradio: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: hdlc_ppp: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: dscc: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: appletalk: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: caif: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: can: sja1000: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: adi: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: amd: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: bnxt: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: dmfe: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: fealnx: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: pxa168: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: mlx4: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: mlx5: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: packetengines: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: sis900: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: sun: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: ath6kl: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: arcnet: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: can: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: can: usb: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: eql: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: amd8111e: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: amd: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: e1000e: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: qlogic: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: smsc: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: hippi: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: atmel: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: xen-netback: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: bnx2: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: enic: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: winbond-840: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: natsemi: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: sun: cassini: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: spider_net: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: slip: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: cisco_hdlc: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: sdla: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: tg3: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: sundance: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: ixgb: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: ns83820: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: atp: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: rsi_91x: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: appletalk: cops: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: et131x: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: am79c961: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: declance: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: bcm63xx: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers : net: niu: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: brcm80211: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: pcnet32: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: b44: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers: net: de4x: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge branch 'mlxsw-Multicast-flood-update'

Jiri Pirko says:

====================
mlxsw: Multicast flood update

Nogah says:

Currently, there are four erroneous flows in MC flood:
1. When MC is disabled it affects only the flood table for unregistered
   MC packets, but packets that match an entry in the MDB are unaffected.
2. When MC is disabled, MC packets are being sent to all the ports in the
   bridge (like BC and link-local MC packets) regardless of the designated
   flag (BR_MCAST_FLAG).
3. When a port is being deleted from a bridge it might remain in the MDB.
4. When MC is enabled packets are flooded to the mrouter ports only if
   they don't match any entry in the MDB, when they should always be
   flooded to them.

What these problems have in common is the discrepancy between how the
hardware handles MDB and mcast flood, and how the driver does it. Each
of these problems needs fixing either in the MDB code, or in mcast flood
code, and some in both.

Patches 1-6 change the way the MDB is handled in the driver to make the
following changes easier.
Patches 7-8 fix problem number 1 by removing the MDB from the HW when MC
is being disabled and restoring it when it is being enabled.
Patches 9-10 fix problem number 2 by offloading the flood table by the
appropriate flag.
Patch 11 fixes problem number 3 by adding MDB flush to the port removal.
Patches 12-14 fix problem number 4 by adding the mrouter ports to every
MDB entry in the HW to mimic the wanted behaviour.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Consider mrouter status for mdb changes

When a mrouter is registered or leaves a mid, don't update the HW.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Remove mrouter flood in mdb flush

In mdb flush the port is being removed from all the mids it is registered
to. But if the port is mrouter, all the mids floods to it.
This patch remove mrouter ports from mids it is not registered to in the
mdb flush.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Update the mdb of mrouter port change

Whenever a port starts / stops being mrouter, update all the mdb entries
in the HW to flood / stop flooding mc packets there.
The change should happen only if the port is not in the mid. (If it is,
the mid should flood mc packets to this port anyway)

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Flood all mc packets to mrouter ports

When mc is enabled, whenever a mc packet doesn't hit any mdb entry it is
being flood to the ports marked as mrouters. However, all mc packets should
be flooded to them even if they match an entry in the mdb.
This patch adds the mrouter ports to every mdb entry that is being written
to the HW.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Flush the mdb when a port is being removed

When a port is being removed from a bridge, flush the bridge mdb to remove
the mids of that port.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Flood mc when mc is disabled by user flag

When multicast is disabled, flood mc packets only to port that are marked
BR_MCAST_FLOOD (instead to all).

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Use generic mc flood function

Use the generic mc flood function to decide whether to flood mc to a port
when mc is being enabled / disabled.
Move this function in the file to avoid forward declaration.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Disable mdb when mc is disabled

Remove all the mdb entries from the HW when mc is being disabled and
re-write them when it is being enabled.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Don't write mids to the HW when mc is disabled

Don't write multicast related data to the HW when mc is disabled.
Also, don't allocate mid id to new mids (so the remove function could know
that they weren't wrote to the HW)

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Break mid deletion into two function

Break mid deletion into two function, so it will be possible in the future
to delete a mid entry for other reasons then switchdev command (like port
deletion).

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Attach mid id allocation to HW write

Attach mid getting and releasing mid id to the HW write / remove, and add
a flag to indicate whether the mid is in the HW. It is done because mid id
is also HW index to this mid.
This change allows adding in the following patches the ability to have a
mid in the mdb cache but not in the HW. It will be useful for being able
to disable the multicast.
It means that the mdb is being written / delete to the HW in the mid
allocation / removing function, not after them.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Break smid write function

Break the smid write function into two, one that cleans the ports that
might be still written there and one that changes an exiting mid entry.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Save mids list per bridge device

Instead of saving all the mids in the same list, save them per vlan
device. This change allows a more efficient mid find.
Also, in the next patches, there will be added a lot of loops over all the
mids in bridge device for multicast disable, mrouter change and ndb flush.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Remove reference count from mid

Since there is a bitmap for the ports registered to each mid, there is no
need for a ref count, since it will always be the number of set bits in
this bitmap. Any check of the ref count was replaced with checking if the
bitmap is empty.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Add a ports bitmap to the mid db

Add a bitmap of ports to the mid struct to hold the ports that are
registered to this mid.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mlxsw: spectrum_switchdev: Change mc_router to mrouter

Change the naming of mc_router to mrouter to keep consistency.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

cxgb4: add new T5 pci device id's

Add 0x50a5, 0x50a6, 0x50a7, 0x50a8 and 0x50a9 T5 device
id's.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge branch 'blackfin-Drop-non-functional-DSA-code'

Florian Fainelli says:

====================
blackfin: Drop non-functional DSA code

I sent those many months ago in the hope that the bfin-linux people
would pick those patches but nobody seems to be responding, can you
queue those via net-next since this affects DSA?
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

blackfin: ezbrd: Remove non-functional DSA/KSZ8893M code

There is no in tree driver for the KSZ8893M switch driver, so just get rid of
the code in that board file.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

blackfin: tcm-bf518: Remove dsa.h inclusion

Nothing in that file uses definitions from that header, so just get rid of it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: dsa: Utilize dsa_slave_dev_check()

Instead of open coding the check.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Revert "bridge: also trigger RTM_NEWLINK when interface is released from bridge"

This reverts commit 00ba4cb36da682c68dc87d1703a8aaffe2b4e9c5.

Discussion with David Ahern determined that this change is
actually not needed.

Signed-off-by: David S. Miller <davem@davemloft.net>

udp: do rmem bulk free even if the rx sk queue is empty

The commit 6b229cf77d68 ("udp: add batching to udp_rmem_release()")
reduced greatly the cacheline contention between the BH and the US
reader batching the rmem updates in most scenarios.

Such optimization is explicitly avoided if the US reader is faster
then BH processing.

My fault, I initially suggested this kind of behavior due to concerns
of possible regressions with small sk_rcvbuf values. Tests showed
such concerns are misplaced, so this commit relaxes the condition
for rmem bulk updates, obtaining small but measurable performance
gain in the scenario described above.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

virtio-net: support XDP_REDIRECT

This patch tries to add XDP_REDIRECT for virtio-net. The changes are
not complex as we could use exist XDP_TX helpers for most of the
work. The rest is passing the XDP_TX to NAPI handler for implementing
batching.

Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

virtio-net: add packet len average only when needed during XDP

There's no need to add packet len average in the case of XDP_PASS
since it will be done soon after skb is created.

Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

virtio-net: remove unnecessary parameter of virtnet_xdp_xmit()

CC: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: dsa: lan9303: Add adjust_link() method

Make the driver react to device tree "fixed-link" declaration on CPU port.

- turn off autonegotiation
- force speed 10 or 100 mb/s
- force duplex mode

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

bridge: also trigger RTM_NEWLINK when interface is released from bridge

Currently, when an interface is released from a bridge via
ioctl(), we get a RTM_DELLINK event through netlink:

Deleted 2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 master bridge0 state UNKNOWN
    link/ether 6e:23:c2:54:3a:b3

Userspace has to interpret that as a removal from the bridge, not as a
complete removal of the interface. When an bridged interface is
completely removed, we get two events:

Deleted 2: dummy0: <BROADCAST,NOARP> mtu 1500 master bridge0 state DOWN
    link/ether 6e:23:c2:54:3a:b3
Deleted 2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default
    link/ether 6e:23:c2:54:3a:b3 brd ff:ff:ff:ff:ff:ff

In constrast, when an interface is released from a bond, we get a
RTM_NEWLINK with only the new characteristics (no master):

3: dummy1: <BROADCAST,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond0 state UNKNOWN group default
    link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
    link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff
3: dummy1: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether ca:c8:7b:66:f8:25 brd ff:ff:ff:ff:ff:ff
4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether ae:dc:7a:8c:9a:3c brd ff:ff:ff:ff:ff:ff

Userland may be confused by the fact we say a link is deleted while
its characteristics are only modified. A first solution would have
been to turn the RTM_DELLINK event in del_nbp() into a RTM_NEWLINK
event. However, maybe some piece of userland is relying on this
RTM_DELLINK to detect when a bridged interface is released. Instead,
we also emit a RTM_NEWLINK event once the interface is
released (without master info).

Deleted 2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 master bridge0 state UNKNOWN
    link/ether 8a:bb:e7:94:b1:f8
2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
    link/ether 8a:bb:e7:94:b1:f8 brd ff:ff:ff:ff:ff:ff

This is done only when using ioctl(). When using Netlink, such an
event is already automatically emitted in do_setlink().

Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: David S. Miller <davem@davemloft.net>

macvlan: code refine to check data before using

This patch checks data first at one place, return if it's null.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>